Pasolink Training Manual 5w3h4o

DIGITAL MICROWAVE RADIO SYSTEM

PASOLINK

Training Course

GENERAL

ROI-S04604

1. GENERAL This section provides information on the NEC PASOLINK 7-38 GHz 2/4/ 8/16 x 2 MB and/or 2 x 10/100Base-T(X) LAN signals transmission digital microwave radio system. Included herein are system configuration, system performance, RF channel assignment, and alarm and control.

1-1

SYSTEM CONFIGURATION

ROI-S04604

2. SYSTEM CONFIGURATION This system consists of TRP-[ ]G-[ ] Transmitter-Receiver (Outdoor Unit (ODU)) (see Fig. 2-1) and MDP-[ ]MB-[ ] Modulator-Demodulator (Indoor Unit (IDU)) (see Fig. 2-2 and Fig. 2-3 ). The [ ]GHz (2/4/8/16 x 2 MB) MB digital radio system is used to communicate from 2 to 16 data streams at 2.048 Mbps and/or up to 2 channels 10BASE-T/100BASE-TX LAN signals between two stations. The system block diagrams of 2/4/8/16 x 2 MB systems are shown in Fig. 2-4 and Fig. 2-5.

RX LEV MON

IFL

FG

FOR 7-38 GHz BAND ODU

Fig. 2-1 Outline of ODU

2-1


ROI-S04604

EOW IF IN/OUT

SC LAN

CALL

PASOLINK ODU IDU

RESET PWR

MAINT

NMS LAN

FUSE (7.5A) −

TRAFFIC IN/OUT (CH1 to CH4)

ALM/AUX ALM

OW/DSC/ASC

NMS/RA

+

SELV

LA PORT

(a) 4 × 2MB Fix Rate Composition

EOW 100M

IF IN/OUT

100M

PORT1 PORT2

SC LAN

CALL

PASOLINK ODU IDU

RESET PWR

MAINT

NMS LAN

FUSE (7.5A) −


ALM/AUX ALM

OW/DSC/ASC

NMS/RA

+

SELV

LA PORT

(b) 4 × 2MB Fix Rate with LAN Interface Composition


EOW

IF IN/OUT

CALL

PASOLINK ODU IDU

RESET PWR

MAINT

WS/SC LAN NMS LAN

FUSE (7.5A) −


ALM/AUX ALM

OW/DSC/ASC

NMS/RA

+

SELV

LA PORT

(c) 2/4/8/16 × 2MB Free Rate Composition


EOW 100M

IF IN/OUT

100M

PORT1 PORT2

CALL

PASOLINK ODU IDU

RESET PWR

MAINT

WS/SC LAN NMS LAN

FUSE (7.5A) −


ALM/AUX ALM

OW/DSC/ASC

NMS/RA

LA PORT

(d) 2/4/8/16 × 2MB Free Rate with LAN Interface Composition Fig. 2-2 Front View of the IDUs in 1+0 System

2-2

+

SELV


ROI-S04604

PASOLINK IF IN/OUT

! WARNING -43V OUTPUT TURN OFF POWER BEFORE DISCONNECTING IF CABLE

FUSE (7.5A)

RESET PWR ODU IDU MAINT −

EOW CALL

SC LAN

+

SELV

LA PORT RESET OPR SEL No.1

NMS LAN

PASOLINK OPR

ALM

TX RX TX

RX 1

− TRAFFIC IN/OUT (CH1 to CH8)

ALM

AUX ALM

OW/DSC/ASC

NMS/RA

2

LA PORT

No.2

PASOLINK IF IN/OUT


RESET PWR ODU IDU MAINT

FUSE (7.5A)

−

+

SELV

LA PORT

(a) 4 × 2MB Fix Rate Composition PASOLINK IF IN/OUT


FUSE (7.5A)


100M

EOW CALL

100M

SC LAN

PORT1 PORT2

+

SELV


NMS LAN

PASOLINK OPR

ALM

TX RX TX

RX 1


ALM

AUX ALM

OW/DSC/ASC

NMS/RA

2

LA PORT

No.2

PASOLINK IF IN/OUT



FUSE (7.5A)

−

+

SELV

LA PORT

(b) 4 × 2MB Fix Rate with LAN Interface Composition PASOLINK IF IN/OUT


FUSE (7.5A)



EOW CALL

SC LAN

+

SELV


NMS LAN

PASOLINK OPR

ALM

TX RX TX

RX 1


ALM

AUX ALM

OW/DSC/ASC

NMS/RA

2

LA PORT

No.2

PASOLINK IF IN/OUT


FUSE (7.5A)


+

SELV

LA PORT

(c) 2/4/8/16 × 2MB Free Rate Composition PASOLINK IF IN/OUT


FUSE (7.5A)



100M

EOW CALL

100M

PORT1 PORT2

SC LAN

+

SELV


NMS LAN

PASOLINK OPR

ALM

TX RX TX

RX 1


ALM

AUX ALM

OW/DSC/ASC

NMS/RA

LA PORT

2 No.2

PASOLINK IF IN/OUT


FUSE (7.5A)


LA PORT

+

SELV

(d) 2/4/8/16 × 2MB Free Rate with LAN Interface Composition Fig. 2-3 Front View of the IDUs in 1+1 System

2-3

SYSTEM PERFORMANCE

ROI-S04604

3. SYSTEM PERFORMANCE The system performance is listed in Table 3-1. Table 3-1 Performance Characteristics ITEM

7 GHz

8 GHz

13 GHz

15 GHz

18 GHz

23 GHz

26 GHz

38 GHz

Frequency Range [ GHz]

7.1257.725

7.9008.500

12.7513.25

14.515.35

17.719.7

21.223.6

24.526.5

37.039.5

Frequency Plan ITU-R

F.385-6

F.386-6 Annex 4

F.497-6

F.636-3

F.595-7

F.637-3

F.748-4

F.749-2

Channel Separation

GUARANTEED

3.5 MHz (4MB) / 7 MHz (8 MB) / 14 MHz (17 MB; 13.75 MHz also for 18 GHz) / 28 MHz (34 MB; 27.5 MHz also for 18 GHz)

RF TX/RX Spacing [MHz]

266

315 420 490 728

340 1008 1010 1560

1008 1200 1232

1008

1260

+27

+25

+23

+23

+23

+20

+15

±1.5 dB (ATT=0)

BER=10-3 4 MB

-93.5

-93.5

-93.5

-92.5

-91.5

-91.0

-90.5

+2.5 dB

8 MB

-90.5

-90.5

-90.5

-89.5

-88.5

-88.0

-87.5

+2.5 dB

17 MB

-87.5

-87.5

-87.5

-86.5

-85.5

-85.0

-84.5

+2.5 dB

34 MB

-84.5

-84.5

-84.5

-83.5

-82.5

-82.0

-81.5

+2.5 dB

BER=10-6 4 MB

-90.0

-90.0

-90.0

-89.0

-88.0

-87.5

-87.0

+2.5 dB

8 MB

-87.0

-87.0

-87.0

-86.0

-85.0

-84.5

-84.0

+2.5 dB

17 MB

-84.0

-84.0

-84.0

-83.0

-82.0

-81.5

-81.0

+2.5 dB

34 MB

-81.0

-81.0

-81.0

-80.0

-79.0

-78.5

-78.0

+2.5 dB

BER=10-3 4 MB

120.5

118.5

116.5

115.5

114.5

111.0

105.5

-4.0 dB

8 MB

117.5

115.5

113.5

112.5

111.5

108.0

102.5

-4.0 dB

17 MB

114.5

112.5

110.5

109.5

108.5

105.0

99.5

-4.0 dB

34 MB

111.5

109.5

107.5

106.5

105.5

102.0

96.5

-4.0 dB

BER=10-6 4 MB

117.0

115.0

113.0

112.0

111.0

107.5

102.0

-4.0 dB

8 MB

114.0

112.0

110.0

109.0

108.0

104.5

99.0

-4.0 dB

17 MB

111.0

109.0

107.0

106.0

105.0

101.5

96.0

-4.0 dB

34 MB

108.0

106.0

104.0

103.0

102.0

98.5

93.0

-4.0 dB

Output Power at Antenna Port [dBm]

154 161

126 266

Threshold Level (dBm measured at antenna port)

System gain (dBm measured at ant. port)

3-1

SYSTEM PERFORMANCE

ROI-S04604

Table 3-1 Performance Characteristics (Cont’d) ITEM

7 GHz

8 GHz

13 GHz

15 GHz

18 GHz

Frequency Agility (MHz without changing filters)

63

42

56

56-100

252

23 GHz

26 GHz

38 GHz

GUARANTEED

280

Data signal interface Bit rate:

2.048 Mbps ±50 ppm (2 × 2 MB/4 × 2 MB/8 × 2 MB/16 × 2 MB system)

Level:

Meets specification of ITU-T G.703

Code format:

High density bipolar-3 (HDB-3)

Impedance:

75 ohms, unbalanced 120 ohms, balanced

Electro magnetic compatibility (EMC) • ODU/IDU: Power requirement*:

ETS300385 Class B +20 to +60 / -20 to -60 V DC

Power consumption 4 MB system: 8 MB system: 17 MB system: 34 MB system:

Approx. 50 watts (without optional module) Approx. 60 watts (equipped with optional module) Approx. 50 watts (without optional module) Approx. 60 watts (equipped with optional module) Approx. 52 watts (without optional module) Approx. 62 watts (equipped with optional module) Approx. 55 watts (without optional module) Approx. 66 watts (equipped with optional module)

Note: * The range of DC power input depends on system requirement.

3-2 2 pages

GENERAL

ROI-S02775

1.2 Equipment Performance The performance characteristics of the IDU are listed in Table 1-1. Table 1-1 Performance Characteristics of IDU

Data signal interface (between IDU and DTE) Bit rate:

• 2.048 Mbps ±50 ppm (2 MBx 2/2 MB x 4/2 MB x 8/2 MB x 16 system) • 8.448 Mbps ±30 ppm (8 MBx 1 system) • 34.368 Mbps ±20 ppm (34 MBx 1 system)

Level:

Meets specifications of ITU-T G.703

Code format:

High density bipolar-3 (HDB-3)

Impedance:

75 ohms, unbalanced or 120 ohms, balanced

Modulation method:

4-phase shift keying (4 PSK) system

Demodulation method:

Quasi-coherent detection

IF signal interface (between IDU and ODU) Signal frequency TX:

850 MHz

RX:

70 MHz

Signal level IF output:

−5 dBm, nominal

IF input:

−15 to 0 dBm (at , RX IN), varies with cable length (maximum cable length (8D-FB): l=300 m)

Impedance:

50 ohms, unbalanced

Insertion loss:

15 dB at 70 MHz (l=300 m) 45 dB at 850 MHz (l=300 m)

Orderwire frequency Output:

468 kHz, amplitude modulation (AM)

Input:

450 kHz, AM

Power supply:

−43 V DC (through) at IF IN/OUT

Control/Monitor signal frequency:

10 MHz, amplitude shift keying (ASK) (at IF IN/OUT)

1-6

GENERAL

ROI-S02775

Table 1-1 Performance Characteristics of IDU (Cont’d)

Analog service channel (ASC) signal interface Frequency:

0.3 to 3.4 kHz

Impedance:

600 ohms

Digital service channel (DSC) signal interface Bit rate:

• 64 kbps (G703/V.11) • 9.6 kbps (asynchronous)

Level:

RS-232, RS-422 or RS-485 (9.6k) Meet specifications of ITU-T G.703/V.11 (64k)

Wayside (WS) signal interface Bit rate:

2.048 Mbps

Level:

Meet specifications of ITU-T G.703

Dimensions • 2 MBx 2/2 MB x 4/2 MB x 8/ 2 MB x 16 (for 120 ohms interface)/ 8 MB x 1/34 MB x 1 fixed bit rate system/2 MB x 2/4/8 bit rate free system/2 MB x 2/4/8/16 bit rate free system for 120 ohms interface:

482 wide × 44 high × 240 deep (mm)

• 2 ΜΒ x 16 fixed bit rate (for 75 ohms nterface) system/2 MB x 2/4/8/ 16 bit rate free system for 75 ohms interface:


Weight • 2 MBx 2/2 ΜΒ × 4/2 ΜΒ × 8/ 2 ΜΒ x 16 (for 120 ohms interface)/ 8 ΜΒ x 1/34 ΜΒ x 1 system:

Approx. 4 kg (including all options)

• 2 ΜΒ x 16 (for 75 ohms interface) system:

Approx. 5 kg (including all options)

Environmental temperature range Operation:

0°C to +50°C

Storage:

−30°C to +70°C

1-7

GENERAL

ROI-S04605

1.2 Equipment Performance The performance characteristics of the ODU are listed in Table 1-2 and radio frequency assignment is provided in para. 5.1. Table 1-2 Performance Characteristics ITEM

7 GHz

8 GHz

Frequency Range [ GHz]

7.1257.725

7.9008.500

Frequency Plan ITUR

F.385-6

F.386-6 Annex4

Channel Separation

RF TX/RX Spacing [MHz]

13 GHz

15 GHz

18 GHz

12.7513.25

14.515.35

17.719.7

F.497-6

F.636-3

154 161

126 266

+27

Power Control

F.595-7

F.637-3

24.526.5 F.748-4

38 GHz

GUARANTEED

37.039.5 F.749-2

266

315 420 490 728

340 1008 1010 1560

1008 1200 1232

1008

1260

+25

+23

+23

+23

+20

+15

4.5 dB

4.5 dB

±1.5 dB (ATT=0)

0 to 30 dB, in 1 dB steps, variable

±1.0 dB

±5 ppm

±10 ppm

Frequency Stability

Maximum Input Level

21.223.6

26 GHz

3.5 MHz (4 MB) / 7 MHz (8 MB) / 14 MHz (17 MB; 13.75 MHz also for 18 GHz) / 28 MHz (34 MB; 27.5 MHz also for 18 GHz)

Output Power at Antenna Port (dBm)

Receiver Noise Figure

23 GHz

4.5 dB

4.5 dB

5.5 dB

6.5 dB

7.0 dB

7.5 dB

+1.5 dB

-15 dBm (No ERROR)

IF signal interface (between IDU and ODU) Signal frequency TX:

850 MHz

RX:

70 MHz

Signal level Input:

Output:

-52 to -3 dBm for 7-38 GHz, varies with cable length (maximum cable length: L=300 m/8D-FB) 0 dBm, nominal

Orderwire frequency Output:

468 kHz, AM

Input:

450 kHz, AM

DC component

-43 V DC

1-3

GENERAL

ROI-S04605

Table 1-2 Performance Characteristics (Cont’d) ITEM

7 GHz

8 GHz

Control/Monitor signal frequency

18 GHz

23 GHz

26 GHz

38 GHz

PBR -260

PBR - 320

GUARANTEED

50 ohms, unbalanced N-Female

PBR - 140

PBR - 220


Dimensions: Weight:

15 GHz

10 MHz, ASK (at IF IN/OUT)

Impedance Type of RF IN/OUT Portion *1

13 GHz

Approx. 4.5 kg

Approx. 4 kg

Environmental temperature range Operation

-33°C to +50°C

Storage

-40°C to +70°C

Notes: *1 For direct mounting type ODU, the RF IN/OUT port used is NEC special flange, not PBR flange.

1-4 4 pages

RADIO FREQUENCY ASSIGNMENT

ROI-S04604

4. RADIO FREQUENCY ASSIGNMENT Radio frequencies for Pasolink [ ] GHz 4/8/17/34 MB digital radio system are as follows: • 7 GHz band:

7.125 to 7.725 GHz

• 8 GHz band:

7.900 to 8.500 GHz

• 13 GHz band: 12.75 to 13.25 GHz • 15 GHz band: 14.5 to 15.35 GHz • 18 GHz band: 17.7 to 19.7 GHz • 23 GHz band: 21.2 to 23.6 GHz • 26 GHz band: 24.5 to 26.5 GHz • 38 GHz band: 37.0 to 39.5 GHz For details, refer to Appendix "Frequency Allocation Table" in TRP equipment (ODU) description (Section II).

4-1

ALARM AND CONTROL The simplified alarm and control functions are described in accordance with the alarm indication and reporting, and network management. Alarm Indication and Reporting Alarm indication and reporting function are provided with the IDU. Alarm signals initiated by detection circuits on the ODU are sent to the IDU. Therefore the alarm indicator for the ODU is located on the front of the IDU. The alarm indication for the IDU is also indicated by the corresponding alarm indicator on the IDU. When the equipment is operating normally, the alarm indicators on the IDU stay unlit. When an abnormal condition occurs, the related alarm indicator is lit and a remote alarm report is made

DETECTING CIRCUIT

INTFC

SW BOARD LAN INTFC

WS INTFC

WS INTFC DPU MOD DEM

ALARM CONDITION AIS signal is sent AIS (all logic “1”) is received Input data stream is lost Transmitter clock is lost Receiver clock is lost Output data stream is lost Setting error of traffic channel assignment for usage TX 1/2 CLK is lost RX1/2 CLK is lost FE link down, selectable Wayside input data stream is lost Wayside AIS is received Wayside output data stream is lost Wayside AIS is transmitted Wayside channel usage error, selectable Output data stream or master clock signal is lost at the DPU (TX) circuit VCO synchronization is lost at the MOD circuit Carrier synchronization is lost IF input signal is lost Frame synchronization is lost at the DPU (RX) BER is worse than preset value (1 x 10−3)

DPU

ODU

—

AIS SEND AIS RCVD INPUT LOSS TX CLK LOSS RX CLK LOSS OUTPUT LOSS CHANNEL USAGE ERROR TX IN CLK LOSS1/2 RX IN CLK LOSS1/2 FE LINK DOWN WS INPUT LOSS WS AIS RCVD WS OUTPUT LOSS WS AIS SEND WS CHANNEL USAGE TX DPU ALM MOD ALM DEM ALM DEM ALM F SYNC ALM HIGH BER ALM

LED INDICATION ON IDU — — TX ALM ( ) TX ALM ( ) RX ALM ( ) RX ALM ( ) TX ALM ( ) TX ALM 1/2 RX ALM1/2 LINK TX ALM ( ) TX ALM ( ) RX ALM ( ) RX ALM ( ) TX ALM ( ) TX ALM ( ) TX ALM ( ) RX ALM ( ) RX ALM ( ) RX ALM ( ) RX ALM ( )

IDU*2

IDU

IDU*3

REMOTE ALARM REPORT *1 — — TX ALM ( ) TX ALM ( ) RX ALM ( ) RX ALM ( ) TX ALM ( ) TX ALM 1/2 RX ALM 1/2 LAN INTFC ALM TX ALM ( ) TX ALM ( ) RX ALM ( ) RX ALM ( ) TX ALM ( ) TX ALM ( )

IDU

RX ALM ( ) RX ALM ( ) RX ALM ( ) RX ALM, ( ) BER ALM

BER is worse than preset value (1 x 10−6)

LOW BER ALM

RX ALM ( )

RX ALM ( ), BER ALM

BER is worse than preset value (1 x 10−3, 1 x 10−4, 1 x 10−5 or 1 x 10−6, selectable)

BER ALM

RX ALM ( )

RX ALM ( ), BER ALM

U communication error between IDU and ODU

OPR ALM

Transmitter RF power decreases 3 dB from normal Receiver input level decreases from squelch level at ODU

TX PWR ALM RX LEV ALM

APC loop of local oscillator for transmitter or first local oscillator for receiver unlocks at ODU

APC 1 ALM

APC loop of second local oscillator for receiver unlocks at ODU

APC 2 ALM

IF signal from the IDU is lost at ODU When the equipment is set to the Maintenance condition by PC. When the equipment is set to the following condition by PC. • FE loopback control condition • NE loopback control condition • MOD CW condition • MUTE (TX output power) condition • BER ALM >> AIS (off) OPR SEL No.1-No.2 switch is set to No.1 or No.2 position.

IF INPUT ALM MAINT ALM

—

MAINT ALM

TX ALM ( ) RX ALM ( ) TX ALM ( ) RX ALM ( ) TX ALM ( ) RX ALM ( ) TX ALM ( ) RX ALM ( ) TX ALM ( ) MAINT

ODU

TX ALM( ) RX ALM ( ) TX ALM ( ) RX ALM ( ) TX ALM ( ) RX ALM ( ) TX ALM ( ) RX ALM ( ) TX ALM ( ) MAINT ALM

MAINT ( )

—

MAINT ( )

MAINT ALM

ROI-S04488

SW BOARD

ALARM INITIATED

FUNCTIONAL OPERATION

2-28 28 pages

Table 2-3 Alarm Indication and Reporting

IDU Description andOperation Operation ODU Description Idu Description and and Operation 1- General The IDU has the following two types for each 1+0 and 1+1 systems. • Fixed bit rate type (for 4 × 2MB and optional 2 × 10/100 BASET(X)) • Free bit rate type (for 2/4/8/16 × 2MB and optional 2 × 10/100 BASE-T(X)) 2- Equipment Composition A- 1+0 IDU

B- 1+1 IDU

3. FUNCTIONAL OPERATION This section describes functional operation of the transmit line equalization, transmit digital processing, modulation, demodulation, receive digital processing, receive line equalization, analog service channel signal transmission, 9.6k digital service channel transmission, alarm signal transmission, wayside signal transmission, 64k digital service channel transmission, LAN signal transmission, and alarm and control in that order for the IDU. The IDU provides four signal transmission systems; 2 x 2 MB, 4 x 2 MB, 8 x 2 MB and 16 x 2 MB in 1+0 and 1+1 configuration as shown in Fig 21 and Fig 2-2 Functional Block Diagram.


ROI-S04488

INTFC (CH1 - CH4)

INPUT LOSS 1-2 AIS RCVD 1-2 FE LB CTRL 1-4 CH1 IN

TRANS

CH2 IN

TRANS

CH1 OUT

TRANS

CH2 OUT

TRANS

2 x 2 MB SYSTEM

PLS MON

AIS DET

LOOPBACK CKT

MEM

B-U CONV

LOOPBACK CKT

MEM

U-B CONV

AIS CTRL

MEM

AIS CTRL

MEM

a

FE LB ANS 1-4

b P-S CONV

OUTPUT LOSS 1-2 4 x 2 MB SYSTEM

MUX

PLS MON

TX CLK LOSS

INPUT LOSS 3-4

CLK MON TX FPLS TX CLK

AIS RCVD 3-4

CH3 IN

TRANS

CH4 IN

TRANS

CH3 OUT

TRANS

CH4 OUT

TRANS

PLS MON

AIS DET

w x

TIM GEN LOOPBACK CKT

MEM

B-U CONV

LOOPBACK CKT

MEM

U-B CONV

AIS CTRL

MEM

AIS CTRL

MEM

z i

j S-P CONV DEMUX RX CLK RX FPLS

u v

CLK MON

PLS MON RX CLK LOSS

AIS CTRL F SYNC ALM 16M CLK

1/8 OUTPUT LOSS 1-2 OUTPUT LOSS 3-4 AIS RCVD 1-2 INPUT LOSS 1-2 AIS RCVD 3-4 INPUT LOSS 3-4 FE LB CTRL 1-4 FE LB ANS 1-4 NE LB ANS 1-4

8 x 2 MB SYSTEM

FE LB CTRL 1-4 NE LB CTRL 1-4

CH5 IN CH6 IN CH5 OUT CH6 OUT CH7 IN CH8 IN CH7 OUT CH8 OUT CH9 IN CH10 IN CH9 OUT CH10 OUT CH11 IN CH12 IN CH11 OUT CH12 OUT 16 x 2 MB SYSTEM

y s t From/To FIG. 2-1 (2/3)

P-S CONV

SERIAL ALM

S-P CONV

SERIAL DATA

(CH5 - CH8)

q

r

c d k l

(SAME AS ABOVE)

(CH9 - CH12)

e f m n

(SAME AS ABOVE)

CH13 IN CH14 IN CH13 OUT CH14 OUT CH15 IN CH16 IN CH15 OUT CH16 OUT

(CH13 - CH16)

g h o p

Fig. 2-1 Functional Block Diagram of IDU (1/3)

2-3/4


ROI-S04488

DPU a b c d e f g h

w x

MOD P-S CONV

D-A CONV

SCRB DIF ENC

MUX

DIG FIL

PARITY CHECK

4PH MOD

IF IN/OUT

D-A CONV

DATA UP

MOD

PLS MON

TX FPLS

TIM GEN

TX CLK

PLS MON

DEM

VCO

z

EOW

VCO 450 kHz

EOW IN

U CLK INTERFACE

TERMINAL WS

IN/OUT

TX DPU ALM MOD ALM

WS/SC LAN INTFC*

From/To FIG. 2-1 (1/3)

C D E

B-U CONV U-B CONV

(RJ45) q

B

EOW MOD

−43 V DC

EOW OUT

H

A

EOW DEM

MST CLK MON

PCM CODEC

DATA DOWN

MUX ALM 1-4

SERIAL ALM L BER ALM H BER ALM

s y

F SYNC ALM

F SYNC ALM

AIS CTRL

BER ALM

P-S CONV

F

S-P CONV

G


MOD CW AIS CTRL OFF r

SERIAL DATA BER THRESHOLD FRAME ID LAN INTFC*

10BASE-T/ 100BASE-TX

v t u

PORT1 PORT2

Ethernet SW SPEED CONV

F SYNC ALM

H

RX FPLS BER ALM

16M CLK RX CLK

BER DET

i j k l m n o p

S-P CONV

TIM GEN

OW/DSC/ASC IN

ASC/DSC/ALM INTFC

DEM A-D CONV

F SYNC

DIF DEC

Note: * Optional.

4 PH DEM

DEMUX DSCRB

I

A-D CONV

70 MHz

A-D CONV/LEV CONV

OUT DSC/64K/ ASC/EOW

IN OUT

B-U CONV U-B CONV 64K/SC LAN INTFC*

INTERFACE TERMINAL

Fig. 2-1 Functional Block Diagram of IDU (2/3)

2-5/6


ROI-S04488

TX PWR ALM

S-P CONV

RX LEV ALM APC 1 ALM APC 2 ALM IF INPUT ALM ODU

INPUT LOSS 1-16 S-P CONV

TX CLK LOSS RX CLK LOSS OUTPUT LOSS 1-16 DEM ALM H BER ALM IDU

TX DPU ALM D BER ALM I F SYNC ALM H

INTERFACE TERMINAL

MOD ALM E

NO RL4

DPU SERIAL From/To FIG. 2-1 (2/3)

F

FE LB CTRL 1-16

COM

MAINT

NC

MOD CW

DPU SERIAL

S-P CONV

G

NE LB CTRL 1-16 AIS CTRL 1-16

DATA UP

MAINT

U

A DATA DOWN

U ALM

B

U RESET

C

U CLK NO

INTERFACE TERMINAL

INTERFACE TERMINAL

RL1

COM

TX ALM

NC

PM CARD*

LA PORT U

PHOTOCOUPLERs

HOUSEKEEPING INPUT

NMS/RA NO RL2

RELAYs

COM

RX ALM

NC

HOUSEKEEPING OUTPUT

NO RL3

Notes: 1. *Optional.

COM

BER ALM

NC

2. Four relay s are outputed from interface terminal (ALM/ALM AUX). Plural alarms can be applied to a single relay. The figure shows the default settings. Refer to paragraph 3.4 for changing the settings. 3. Refer to the table 3.1 Interface Terminals and Jacks for the details of pin assignment for the alarm signals. Fig. 2-1 Functional Block Diagram of IDU in 1+0 System (3/3)

2-7/8


ROI-S04488

INTFC SECTION (CH1 - CH4)

INPUT LOSS 1-2 AIS RCVD 1-2 FE LB CTRL 1-4 CH1 IN

2 × 2 MB SYSTEM

CH2 IN

PLS MON

AIS DET

LOOPBACK CKT

MEM

B-U CONV

LOOPBACK CKT

MEM

U-B CONV

AIS CTRL

MEM

AIS CTRL

MEM

a

FE LB ANS 1-4

b P-S CONV

CH1 OUT

CH2 OUT OUTPUT LOSS 1-2 4 × 2 MB SYSTEM

MUX

PLS MON

TX CLK LOSS

INPUT LOSS 3-4

CLK MON TX FPLS TX CLK

AIS RCVD 3-4

CH3 IN

CH4 IN

CH3 OUT

PLS MON

AIS DET

LOOPBACK CKT

MEM

B-U CONV

LOOPBACK CKT

MEM

U-B CONV

AIS CTRL

MEM

AIS CTRL

MEM

x

i

j

S-P CONV DEMUX RX CLK RX FPLS

CH4 OUT

w

u v

CLK MON

PLS MON RX CLK LOSS

AIS CTRL F SYNC ALM 12M CLK

1/8 OUTPUT LOSS 1-2 OUTPUT LOSS 3-4 AIS RCVD 1-2 INPUT LOSS 1-2 AIS RCVD 3-4 INPUT LOSS 3-4 FE LB CTRL 1-4 FE LB ANS 1-4 NE LB ANS 1-4

8 × 2 MB SYSTEM

FE LB CTRL 1-4 NE LB CTRL 1-4

CH5 IN CH6 IN CH5 OUT CH6 OUT CH7 IN CH8 IN CH7 OUT CH8 OUT

16 × 2 MB SYSTEM

CH9 IN CH10 IN CH9 OUT CH10 OUT CH11 IN CH12 IN CH11 OUT CH12 OUT CH13 IN CH14 IN CH13 OUT CH14 OUT CH15 IN CH16 IN CH15 OUT CH16 OUT

y s t FROM/TO FIG. 2-2 (2/4)

P-S CONV

SERIAL ALM

S-P CONV

SERIAL DATA


q

r

c d k l

(SAME AS ABOVE)


e f m n

(SAME AS ABOVE)

INTFC SECTION (CH13 - CH16) (SAME AS ABOVE)

g h o p

Fig. 2-2 Functional Block Diagram of IDU in 1+1 System (1/4)

2-9/10


ROI-S04488

From/To FIG. 2-2 (4/4) TX CLK LOSS 2

SW UNIT No. 1 MD UNIT

1

DPU

a

H

b

H

c

H

MDP P-S CONV

SCRB PARITY CHECK


H

e

H

f

H

g

H

h

H

TX FPLS TX CLK

DIG FIL

D-A CONV

MPX IF IN/OUT

4 PH MOD

D-A CONV PLS MON

PLS MON

d

DIF ENC

MUX

MOD DEM

850 MHz VCO

TIM GEN

DATA DOWN

B

EOW DEM

MST CLK MON

PCM CODEC

DATA UP A

EOW MOD

–43 V DC

CLK MON

450 kHz

U CLK C TX DPU ALM D MOD ALM E

w RX SW

x

g

SERIAL ALM

From/To FIG. 2-2 (1/4) s

F SYNC ALM

y

MUX ALM 1-4 SERIAL ALM L BER ALM H BER ALM

P-S CONV

SYS ALM

S-P CONV

SYS CTRL

From/To FIG. 2-2 (3/4) F

F SYNC ALM BER ALM

AIS CTRL

MOD CW AIS CTRL OFF H

EOW IN/OUT

BER THRESHOLD RX SW

DEM ALM

LAN INTFC * 10 BASE-T 100 BASE-TX

PORT1

ETHERNET SW

PORT2

SPEED CONV

G

FRAME ID

F SYNC ALM

H

BER ALM

RX FPLS 12M CLK RX CLK

SW

BER DET

j

TIM GEN

A-D CONV

F SYNC

4 PH DEM

DEMUX DSCRB

k

I J

DEM

i S-P CONV

H

DIF DEC

A-D CONV 70 MHz

l m From/To FIG. 2-2 (1/4)

n o

RX SW/ HL SW

p

No. 2 MD UNIT v

IF IN/OUT DATA UP DATA DOWN U CLK

t

TX DPU ALM u

MOD ALM SYS ALM

WS/SC LAN

CLK MON

SYS CTRL

WS/SC LAN INTFC * IN

B-U CONV/DPU

OUT (RJ45)

DEM ALM SW

OW/DSC/ASC ASC/DSC/ALM INTFC * IN A-D CONV/

F SYNC ALM BER ALM H

LEV CONV

OUT

DSC/64K/ ASC/EOW

H

U-B CONV/DPU

K L M N O


P Q

R S T

(SAME AS ABOVE)

64K/SC LAN INTFC * IN

B-U CONV/DPU

OUT

U-B CONV/DPU

H

RX SW

From FIG. 2-2 (4/4)

6

RX SW CONT

To RX SW

4

3

RX CLK LOSS From/To FIG. 2-2 (4/4)

Note: * Optional. Fig. 2-2 Functional Block Diagram of IDU in 1+1 System (2/4)

2-11/12


ROI-S04488


5

F

ALM CTRL (No. 1 CH)

TX SW CTRL

INTFC SERIAL


S/P

FE LB CTRL R 1-4 FE LB ANS R 1-4 INPUT LOSS 1-4 AIS RCVD 1-4 NE LB ANS 1-4 TX IN CLK LOSS RX IN CLK LOSS OUTPUT LOSS 1-4 AIS SEND 1-4 DEM ALM L BER ALM H BER ALM

TX PWR ALM ODU SERIAL

P/S CONV

RX LEV ALM S-P CONV

APC 1 ALM APC 2 ALM ODU

IF INPUT ALM

DPU SERIAL

INPUT LOSS 1-16 AIS RCVD 1-4

J I a

BER ALM F SYNC ALM

TX IN CLK LOSS DPU SERIAL

TX 1 ALM A B C D

S-P CONV

RX IN CLK LOSS OUTPUT LOSS 1-16 DEM ALM

DATA UP

L BER ALM DATA DOWN U CLK TX DPU ALM

U

H BER ALM

IDU

U ALM

From/To FIG. 2-2 (2/4) H E G b

DEM ALM MOD ALM DPU SERIAL S-P CONV

RX 1 ALM FE LB CTRL To FIG. 2-2 (1/4)

r

SERIAL DATA

P/S CONV

NE LB CTRL

FE LB CTRL 1-16 MOD CW NE LB CTRL 1-16 AIS CTRL 1-16

RESET

To FIG. 2-2 (4/4)

MAINT

S/P CONV P/S CONV

MAIN BOARD 1 SERIAL

c

INTERFACE TERMINAL

LA PORT PHOTOCOUPLERs

NMS/RA

HOUSEKEEPING INPUT

U From FIG. 2-2 (4/4)

5


P T S

TX SW CTRL RELAYs

d

RX 2 ALM From/To FIG. 2-2 (1/4)

f

HOUSEKEEPING OUTPUT

PM CARD*

TX 2 ALM


e

INTFC SERIAL BER ALM F SYNC ALM

K L M N R O Q r

DATA UP DATA DOWN U CLK TX DPU ALM DEM ALM MOD ALM DPU SERIAL

ALM CTRL (No. 2 CH) (SAME AS ABOVE)

ODU

IDU

SERIAL DATA MAINT

MAIN BOARD 2 SERIAL


2-13/14


ROI-S04488


a

S/P

5 2

3

TX ALM 1

TX SW CTRL LOGIC

S/P

APC 11 ALM APC 12 ALM RX LEV 1 ALM OPR 1 ALM F ASYNC 1 ALM DEM 1 ALM BER 1 ALM

RX SW CTRL RX CLK LOSS 2

RX 2 ALM

S/P


TX OPR 1

MOD 2 ALM TX DPU 2 ALM TX PWR 2 ALM APC 21 ALM APC 22 ALM IF INPUT 2 ALM OPR 2 ALM

TX OPR 2

TX ALM 2

RX CLK LOSS 1

RX 1 ALM

6 4

MOD 1 ALM TX DPU 1 ALM TX PWR 1 ALM APC 11 ALM APC 12 ALM IF INPUT 1 ALM OPR 1 ALM

TX SW CTRL TX CLK LOSS 2

S/P


e

ALM CTRL (COMMON)

TX 2 ALM

From FIG. 2-2 (2/4)

b

TX CLK LOSS 1

TX 1 ALM

To FIG. 2-2 (3/4) From FIG. 2-2 (2/4)

d

1

OPR SEL

OPR REL No. 1 No. 2 AUX ALM TERMINAL

No. 1 I AUTO I No. 2

RX ALM 1 RX SW CTRL LOGIC

RX OPR 1

APC 21 ALM APC 22 ALM RX LEV 2 ALM OPR 2 ALM F ASYNC 2 ALM DEM 2 ALM BER 2 ALM

RX OPR 2

RX ALM 2

ALM TERMINAL

TX PWR 1 ALM APC 11 ALM APC 12 ALM IF INPUT 1 ALM INPUT LOSS 1-4 MUX ALM 1 c

MAIN BOARD 1 SERIAL

S/P

RL 1 RL 2

RX LEV 1 ALM OUTPUT LOSS 1-4 H BER 1 ALM

RL 3

FE LB CTRL 1-4 MOD 1 CW NE LB CTRL 1-4 AIS CTRL S 1-4

RL 4

TX PWR 2 ALM APC 21 ALM APC 22 ALM IF INPUT 1 ALM INPUT LOSS 1-4 MUX ALM 2 f

MAIN BOARD 2 SERIAL

S/P

RL 5 RL 6

RX LEV 1 ALM OUTPUT LOSS 1-4 H BER 1 ALM RL 7

Notes : 1.

Eight relay s are outputed from interface terminal (ALM TERMINAL). Plural alarms can be applied to a single relay. The figure shows the default settings. Refer to paragraph 3.4 for changing the settings.

REMOTE CTRL IN

FE LB CTRL 1-4 MOD 1 CW NE LB CTRL 1-4 AIS CTRL S 1-4

RL 8

NO COM NC NO COM NC NO COM NC NO COM NC

NO COM NC NO COM NC No.2 COM No.1 No.2 COM No.1

TX ALM 1

TX ALM 2

RX ALM 1

RX ALM 2

BER ALM

MAINT ALM

TX SW OPR

RX SW OPR

MAINT

2. Refer to the table 3.2 for Interface Terminals and Jacks for the details of pin assignment for the alarm signals.


2-15/16


ROI-S04488

2.1

Transmit Line Equalization This section describes the bipolar-to-unipolar multiplexing and parallel-to-serial conversion.

2.1.1

code

conversion,

Bipolar-to-Unipolar Code Conversion The signals applied to the TRAFFIC IN terminal are (*) 2.048 Mbps data streams in a bipolar pulse format of the high density bipolar-3 (HDB-3) code. Each bipolar-coded data stream is converted into an NRZ unipolar data stream. Note: *2 MB × 2 system: two 2 MB × 4 system: four 2 MB × 8 system: eight 2 MB × 16 system: sixteen

2.1.2

Multiplexing To obtain time slots for multiplexing, the 2.048 Mbps × N data streams are written in to a buffer memory and read out with radio section clock having a time gap. The data streams having a time gap are sent to a multiplexer (MUX) circuit, here, alarm information, AIS RCVD, loopback control/ answer, alarm/control signals and stuff information bits, etc. are inserted into the location of the time gap.

2.1.3

Parallel-to-Serial Conversion The signal streams which are formatted in radio frame, are fed to the DPU circuit.

2.2

Transmit Digital Processing This section describes the multiplexing, scrambling and parity check.

2.2.1

Multiplexing The data streams having a time gap are sent to the MUX in which frame pattern, multiframe pattern, analog service channel (ASC), digital service channel (DSC), WS, LAN data signals and parity check bits are inserted into the respective locations of the time gap. The multiplexed data streams are fed to the SCRB circuit.

2-17


2.2.2

ROI-S04488

Scrambling To smooth the RF spectrum and to restore the clock at the receiving end, the multiplexed data streams are scrambled with the 12th (for 4 x 2 MB) or 14th (for 2 x 2 MB, 8 x 2 MB and 16 x 2 MB,) pseudo random pattern generated by the timing generator (TIM GEN) so that the transmission mark ratio is 1/2. Then the scrambled data stream is sent to the differential encoder (DIFF ENCOD).

2.2.3

Parity Check For detecting the bit error at the receiving end, the parity check bits are calculated and multiplexed into the radio frame signal streams.

2.3

Modulation This section describes the differential encoding, 4-phase shift keying modulation and orderwire signal modulation.

2.3.1

Differential Encoding In the 4-phase shift keying modulation system, the demodulator phase may not coincide with the modulation signal of the opposite transmitting end which give raise to phase ambiguity. To avoid this, an absolute reference phase is needed between the transmitting and receiving ends. As shown in Table 2-1, the two independent data streams fed from the SCRB circuit are represented as an arrangement of Gray-coded binary digits. The two-bit Gray-coded data streams are then converted into pulse streams in natural binary code for facilitating differential encoding. Table 2-1 Binary Combinations DECIMAL

2-18

GRAY CODE

NATURAL BINARY CODE

0

0

0

0

0

1

0

1

0

1

2

1

1

1

0

3

1

0

1

1


ROI-S04488

Table 2-2 shows typical operation of the differential encoding circuit. Phases in the natural-binary-coded pulse streams are accumulated in quaternary notation at every time slot. The data streams thus encoded are reconverted into pulse streams in gray code and then sent to a driver. Table 2-2 Typical Operation of Differential Encoding Circuit TIME SLOT NATURALBINARYCODED DATA

0*

1

2

3

4

5

6

7

8

9

10

11 ...

Data 1

0

1

1

1

0

1

0

1

0

1

0 ...

Data 2

1

1

0

0

0

0

1

1

0

1

1 ...

Quaternary

1

3

2

2

0

2

1

3

0

3

1 ...

+ ENCODED DATA

+

′′′′′′′′′′′′′′′

+

+

+

Quaternary

0

1

0

2

0

0

2

3

2

2

1

2 ...

Data 1

0

0

0

1

0

0

1

1

1

1

0

1 ...

Data 2

0

1

0

0

0

0

0

1

0

0

1

0 ...

Note: * Operating process given above assumes that the initial time slot is 0.

2.3.2

4-Phase Shift Keying Modulation To permit 4-phase shift keying modulation, the encoded data streams are converted into two separate two-level baseband signals for the P and Q channels by the digital-to-analog converter (D-A CONV) on the MOD section according to the logical status (see Fig. 2-3). To limit the associated transmitter output power spectrum, the voltage spectrum of the two-level baseband signal is shaped by each low- filter. The filtered signals are applied to a 4-phase modulator (4PH MOD). To obtain an 850 MHz IF carriers for 4PH MOD, an 850 MHz carrier is generated by the 850 MHz voltage controlled oscillator (VCO), and is split into two for the P and Q channels. The 850 MHz carrier for the Q channel is phase-shifted by π /2 from the P channel. The MOD modulates each of the 850 MHz carriers with a related twolevel baseband signal, and combines the modulated 850 MHz signals on the P and Q channels to arrange a four-phase assignment as shown in Fig. 2-2. The obtained 850 MHz IF signal is filtered by a LPF for eliminating the out-of-band components, amplified up to the required level by an automatic gain control (AGC) amplifier and sent to the ODU. Then, it is combined with 450 kHz amplitude-modulated engineering orderwire (EOW) signal and 10 MHz amplitude shift keying (ASK)-modulated control signal.

2-19


ROI-S04488

3π/2 STATUS

P CHANNEL

Q CHANNEL

1(0)

-L

-L

2(π/2)

-L

+L

3(π)

+L

+L

4(3π/2)

+L

-L

P +L

-L

0

π

+L

-L

Q

π/2

Fig. 2-3 PSK Modulation

2.3.3

Orderwire Signal Modulation To facilitate an EOW between the IDU and ODU, the EOW signal is amplitude-modulated with the 450 kHz carrier by the orderwire modulator (EOW MOD) on the MOD section. The modulated EOW signal is filtered to eliminate higher out-of-band noise, amplified up to the required level and combined with the 850 MHz IF signal through a band- filter (BPF). This eliminates lower out-of-band noise, receiving IF signal (70 MHz), and an arrester (ARSR) protecting the equipment from harmful voltages caused by lightning.

2.4

Demodulation This section describes the EOW and alarm signal demodulation, main signal demodulation and differential decoding.

2.4.1

EOW and Alarm Signal Demodulation The received (RX) signal from the ODU contains a 70 MHz IF signal, 468 kHz amplitude-modulated EOW signal and 10 MHz ASK-modulated alarm (ALM) signal. The RX signal is branched into two separate signals; One is sent to the DEM section through the BPF which eliminates the transmitting IF, EOW and ALM signals, and the other goes through a BPF which eliminates the 70 MHz IF signal. The orderwire demodulator (EOW DEM) demodulates the 468 kHz amplitude-modulated EOW signal. The demodulated 10 MHz ASK alarm signal is sent to the U for further processing.

2-20


ROI-S04488

2.4.2

Main Signal Demodulation The incoming 70 MHz IF signal is amplified up to the required level by an AGC amplifier and split into two separate signals for the P and Q channels and then fed to the mixer. In addition to the 70 MHz IF signals, two carriers having a phase difference of π/2 produced by the carrier recovery circuit, which consists of a carrier synchronizer, a 70 MHz oscillator, and a carrier splitter (π/2), are applied to the decision circuit. In the decision circuit, each 70 MHz IF signal is coherent-detected with the related carrier to represent the original baseband signal corresponding to the phase assignment (see Fig. 2-4). π/2

π

CARR 1

0

CARR 2 3π/2

DETECTED OUTPUT

INPUT PHASE

P CHANNEL

Q CHANNEL

0

-1

-1

π/2

-1

+1

π

+1

+1

3π/2

+1

-1

Note: −1 is replaced by logic 0 and +1 by logic 1.

Fig. 2-4 Demodulation

The clock oscillator circuit generates a 38.383 MHz clock for the analogto-digital converter (A-D CONV) circuits. In the A-D CONV, two 38.383 Mbps data streams are regenerated with 38.383 MHz clock. Then the two re-generated 38.383 data streams enter the differential decoding (DIFF DECOD) circuit.

2.4.3

Differential Decoding The process of differential decoding is the reverse of the differential encoding at the transmitting end. In the natural binary-coded pulse streams, the phase of the time slot leading one bit before an incoming time slot is subtracted in quaternary notation from that of the incoming time slot. The decoded 38.383 Mbps data streams are sent to the frame synchronizer and descramblers on the DPU section of the MAIN BOARD for receive digital processing.

2-21


2.5

ROI-S04488

Receive Digital Processing This section describes the frame synchronization, descrambling and demultiplexing.

2.5.1

Frame Synchronization FS bits which are multiplexed at the transmitting end are detected and comparing to establish the frame synchronizer.

2.5.2

Descrambling To recover original data streams from received data streams, descrambling is performed by using the same frame pattern as the transmitting end.

2.5.3

Demultiplexing The two descrambled data streams enter the demultiplexer (DEMUX). The DEMUX circuit extracts the frame pattern, multiframe pattern, ASC and DSC signal bits, etc. from overhead bits with a clock produced at the TIM GEN.

2.6

Receive Line Equalization This section describes the demultiplexing and unipolar-to-bipolar code conversion.

2.6.1

Demultiplexing From received data streams, the alarm information, AIS RCVD, loopback control/answer and stuff information bits, etc. are extracted by the Demultiplexer (DEMUX) circuit. Then, 2.048 Mbps x N unipolar data/ CLK signals are fed to the next U/B CONV circuit.

2.6.2

Unipolar-to-Bipolar Code Conversion To provide the associated DTE with the original data stream in bipolar pulse format, the unipolar-coded 2.048 Mbps data streams are converted into 2.048 Mbps data streams in the specified bipolar pulse format (HDB3) by the U-B CONV circuit on the INTFC section.

2-22


ROI-S04488

2.7

Analog Service Channel Signal Transmission (Optional) An analog service channel (ASC) transmission is performed in the ASC INTFC section, which provides the pulse code modulation codec (PCM CODEC) and PCM decodec (PCM DECOD) circuits. The ASC transmission is described in accordance with transmission side and receive side, respectively.

2.7.1

ASC Transmit Side An analog signal applied to the ASC IN terminal is ed on to PCM CODEC circuit. An analog signal is converted into a 80 kbps (approx.) digital signal at the PCM CODEC circuit by 10 kHz (approx.) timing pulse and 80 kHz (approx.) clock signal received from the MAIN BOARD. The converted digital signal is fed to the MAIN BOARD.

2.7.2

ASC Receive Side The 80 kbps (approx.) digital signal received from the MAIN BOARD is applied to the PCM DECOD circuit. This 80 kbps (approx.) bps digital signal is converted into an analog signal by the 10 kHz (approx.) timing pulse and 80 kHz (approx.) clock signal, and then the analog signal is fed to the ASC OUT terminal.

2.8

9.6 K Digital Service Channel Transmission The 9.6 K digital service channel (DSC) transmission is explained in the following section: TRANSMISSION CHANNEL DSC 1 and DSC 2− MAIN BOARD

2-23


2.8.1

ROI-S04488

DSC Transmit Side The DSC signal received from DSC IN terminal is applied to level converter circuit. Here, the DSC signal is converted into 9.6 K transistortransistor logic (TTL) level in the level converter and fed to the digital processing unit (DPU) circuit on the MAIN BOARD. In the DPU circuit, 9.6 K (TTL) signal is converted into 40 kbps (approx.) with 40 kHz (approx.) clock produced at the MAIN BOARD, and fed to the opposite station.

2.8.2

DSC Receive Side The 40 kbps (approx.) extracted from DPU circuit on the MAIN BOARD is converted into 9.6 K (TTL) signal with 9.6 kHz clock. The 9.6 K (TTL) signal is converted into 9.6 K DSC signal in the level converter, and fed to the DSC OUT terminal.

2.9

Alarm Signal Transmission With optional ALM INTFC card, two channels cluster alarm transmission provides for external/internal alarm signal extension.

2.10 Wayside Signal Transmission (Optional) The wayside (WS) signal transmission is performed in the WS INTFC section.

2.10.1 WS Transmit Side The 2.048 Mbps bipolar signal applied through the WS IN terminal is fed to the bilopar-unipolar converter (B-U CONV) circuit, where it is converted into a NRZ unipolar signal. NRZ unipolar signal is codeconverted by the HDB-3 decoder. The code-converted 2.048 Mbps WS data signal is fed to the MAIN BOARD together with the clock.

2.10.2 WS Receive Side The process of RX side is the reverse of the process of the TX side. The 2.048 Mbps WS data signal and clock are applied to the HDB-3 encoder. In the HDB-3 encoder, 2.048 Mbps WS signal is code-converted and fed to unipolar-bipolar converter (U-B CONV). The 2.048 Mbps unipolar data signal is converted into the 2.048 Mbps bipolar data stream and fed to the WS OUT terminal.

2-24

ROI-S04488


2.11 64 K Digital Service Channel Transmission Two types of transmission are provided for the service channel: codirectional transmission conforming to ITU-T G.703 and transmission conforming to V.11. Each transmission scheme corresponds to the type of 64K INTFC section.

2.11.1 Service Channel Transmission of G.703 Codirectional (a) TX Side A 64 kbps bipolar signal is applied to the 64K INTFC section, then converted to a unipolar signal by the B-U CONV circuit. The unipolar signal is then code-converted with a decoder. The codeconverted signal is stuff-synchronized with 80 kHz (approx.) clock, then converted into a radio transmission format. After conversion, a 80 kbps (approx.) data signal is fed to the MAIN BOARD. (b) RX Side The process of RX side is the reverse of the process of the TX side. A 80 kbps (approx.) data signal and the 80 kHz (approx.) clock signal from the MAIN BOARD are entered in the synchronizer circuit for the frame synchronization. The frame synchronized data signal is de-stuffed and converted into 64 kbps data signal. The resulting 64 kbps data signal is code-converted into G.703 signal with an encoder circuit, then converted again with the unipolarbipolar converter (U-B CONV) circuit into a 64 kbps bipolar data signal which is transmitted to the output terminal.

2.11.2 Service Channel Transmission of V.11 (a) TX Side The 64 kbps (approx.) unipolar data signal and the 64 kHz (approx.) clock signal are entered into 64K INTFC section. The 64 kbps unipolar data signal undergoes stuff-synchronization with the 80 kHz (approx.) clock signal, then is converted into a format for the radio transmission and fed to the MAIN BOARD as a 80 kbps (approx.) data signal. (b) RX Side The process of RX side is the reverse of the process of the TX side. The 80 kbps (approx.) unipolar data signal from the MAIN BOARD and the 80 kHz (approx.) clock signal are entered into 64K INTFC section. The data signal then is frame synchronized with the frame synchronizer circuit, then de-stuffed converted into a 64 kbps unipolar data signal with a 64 kHz clock signal, and is fed to the output terminal.

2-25


ROI-S04488

2.12 LAN Signal Transmission The data signal for LAN (10BASE-T or 100BASE-TX) transmission is performed in the LAN INTFC module. Radio section throughput is selectable for each port. When 2 Mbps throughput is selected, ITU-T G.704 framing mode setting is available.

2.12.1 Transmit Side The data signal applied through the LAN PORT1 and/or PORT2 terminals is fed to the LAN signal Switch Circuit which selects 10BASE-T or 100 BASE-TX. The data signal is converted to HDLC like frame for radio transmission and multiplexed with specified frame in the main data signal.

2.12.2 Receive Side The data signal for LAN network is extracted from the main data signal. This data signal is performed HDLC like frame detection and fed to the LAN signal switch. The data signal from the LAN signal switch is output through the LAN PORT1 and/or PORT2 terminals. Note: The switching of data between PORT1 and PORT2 is not available.

2.13 Alarm and Control Functions Alarm and control functions of the IDU are described herein. Fault detection circuits are provided in the IDU, sending signals to give alarm indications and remote alarm reports (see Fig. 2-1, Fig. 2-2 and Table 23). The alarm signals initiated by detection circuits in the ODU are also sent to the IDU. Therefore, the total alarm indications for the IDU and ODU are provided by the IDU and ODU indicators on the IDU. When the equipment is operating normally, these indicators on the IDU stay unlit. When an abnormal condition occurs in the IDU (except power supply failure), the IDU indicator lights and a remote alarm report is made. The same applies for the ODU indicator. To monitor/control the alarm and status of IDU/ODU, PM CARD module communicates with pasolink network management system (PNMS) or pasolink network management terminal (PNMT) via RS-232C (19.2 kbps).

2-26

OPERATION

ROI-S04488

Table 3-1 Interface Terminals and Jacks in 1+0 system (1/8) Terminal

Description

IDU TRAFFIC IN/OUT (CH 1 to CH 8) (D-sub Connector, 37 Pins)

2.048 Mbps HDB-3 coded data input/output from/to DTE (CH 1 to CH 8)

Pins 1 (+) and 2 (−)

CH8 data input

Pins 3 (+) and 4 (−)

CH7 data input

Pins 6 (+) and 7 (−)

CH6 data input

Pins 8 (+) and 9 (−)

CH5 data input

Pins 11 (+) and 12 (−)

CH4 data input

Pins 13 (+) and 14 (−)

CH3 data input

Pins 16 (+) and 17 (−)

CH2 data input

Pins 18 (+) and 19 (−)

CH1 data input

Pins 20 (+) and 21 (−)

CH8 data output

Pins 22 (+) and 23 (−)

CH7 data output

Pins 25 (+) and 26 (−)

CH6 data output

Pins 27 (+) and 28 (−)

CH5 data output

Pins 29 (+) and 30 (−)

CH4 data output

Pins 31 (+) and 32 (−)

CH3 data output

Pins 34 (+) and 35 (−)

CH2 data output

Pins 36 (+) and 37 (−)

CH1 data output

Pins 5,10,15,24 and 33

Ground

TRAFFIC IN/OUT (CH 9 to CH 16) (D-sub Connector, 37 Pins)

2.048 Mbps HDB-3 coded data input/output from/to DTE (CH 9 to CH 16) (for 16 x 2 MB system only)

Pins 1 (+) and 2 (−)

CH16 data input

Pins 3 (+) and 4 (−)

CH15 data input

Pins 6 (+) and 7 (−)

CH14 data input

Pins 8 (+) and 9 (−)

CH13 data input

3-3

OPERATION

ROI-S04488


Description

Pins 11 (+) and 12 (−)

CH12 data input

Pins 13 (+) and 14 (−)

CH11 data input

Pins 16 (+) and 17 (−)

CH10 data input

Pins 18 (+) and 19 (−)

CH9 data input

Pins 20 (+) and 21 (−)

CH16 data output

Pins 22 (+) and 23 (−)

CH15 data output

Pins 25 (+) and 26 (−)

CH14 data output

Pins 27 (+) and 28 (−)

CH13 data output

Pins 29 (+) and 30 (−)

CH12 data output

Pins 31 (+) and 32 (−)

CH11 data output

Pins 34 (+) and 35 (−)

CH 10 data output

Pins 36 (+) and 37 (−)

CH 9 data output

Pins 5,10,15,24 and 33

Ground

10/100BASE-T IN/OUT (Modular Connector RJ-45 8pins) (PORT1/PORT2)

LAN signal input/output (optional) (MDI-X/MDI auto-sensing) MDI MDI-X

Pin 1

RD +

TD +

Pin 2

RD −

TD −

Pin 3

TD +

RD +

Pin 6

TD −

RD −

IF IN/OUT (N-P Connector)

TX IF signal output to ODU and RX IF signal input from ODU Caution: Do not connect other cables to this jack, because the −43 V DC power is superimposed on this jack. Danger: Do not touch the jack core before turning off power switch.

3-4

OPERATION

ROI-S04488


OW/DSC/ASC (D-sub Connector, 25 Pins)

Description

Engineering orderwire (EOW), digital service channel (DSC), analog service channel (ASC) and ALARM signal input/ output

Pins 1 (+) and 2 (−)/ Pins 1 and 2*2

ASC1 input (VF) (optional) or Alarm1*2 input (optional) Notes: 1. *2 Applies to the ALM INTFC module. 2. Cluster Alarm 1 input (photocoupler) Normal signal in : Open Alarm signal in : Closed

Pins 3 (+) and 4 (−)/ Pins 3 and 4*2


Pins 5 (+) and 6 (−)

EOW input (VF)

Pins 7 (+) and 8 (−)

64 kHz clock input*1

Pins 9 (+) and 10 (−)

DSC1 input (RS-232C, 64K (G.703)*1 or 64K (V.11)*1 )

Pins 11 (+) and 12 (−)

DSC2 input (RS-232C, RS-422 or RS-485)

Pins 14 (+) and 15 (−)/ Pins 14 and 15*2

ASC1 output (VF) (optional) or Alarm1*2 output (optional) Notes: 1. *2 Applies to the ALM INTFC module. 2. Cluster Alarm 1 output (relay ) Normal signal out : Open Alarm signal out : Closed

Pins 16 (+) and 17 (−)/ Pins 16 and 17*2


Pins 18 (+) and 19 (−)

EOW output (VF)

Pins 20 (+) and 21 (−)

64 kHz clock output*1

Pins 22 (+) and 23 (−)

DSC1 output (RS-232C, 64K (G.703)*1 or 64K (V.11)*1)

Pins 24 (+) and 25 (−)

DSC2 output (RS-232C, RS-422 or RS-485)

3-5

OPERATION

ROI-S04488


Pin 13

ALM/AUX ALM (D-sub Connector, 37 Pins) Pins 1 (COM), 2 (NO) and 3 (NC)

Description

Ground Notes:1. *1 Optional 2. Both ASC and DSC 64K cannot be used simultaneously. Alarm and transmission network surveillance auxiliary alarm input/output Transmitter alarm output*3

Normal state Alarm state Pins 4 (COM), 5 (NO) and 6 (NC)

: :

Between Pins 1 and 2 Open Closed

Between Pins 1 and 3 Closed Open

Between Pins 4 and 5 Open Closed


Receiver alarm output*3

Normal state Alarm state

: :

Pins 20 (COM), 21 (NO) and 22 (NC)

BER alarm output when BER worse than 10-6/10-5/10-4/10-3 (selectable)*3 Between Between Pins 20 and 21 Pins 20 and 22 Normal state : Open Closed Alarm state : Closed Open


Maintenance alarm output*3 Between Pins 23 and 24 Normal state : Open Alarm state : Closed


Note:*3 The BER threshold values and alarm items are set in factory (default). To change the setting of alarm items by the PC, refer to Section 3.4.1 “Alarm Table” of this Manual. (Housekeeping alarm input through optional PM CARD.)

3-6

Pin 7

Input 11

Pin 8 (G)

Input 12

Pin 9

Input 21

OPERATION

ROI-S04488


Description

Pin 10 (G)

Input 22

Pin 11

Input 31

Pin 12 (G)

Input 32

Pin 13

Input 41

Pin 14 (G)

Input 42

Pin 15

Input 51

Pin 16 (G)

Input 52

Pin 17

Input 61

Pin 18 (G)

Input 62 (Housekeeping control output through optional PM CARD.)

Pin 26

Output 11

Pin 27

Output 12

Pin 28

Output 21

Pin 29

Output 22

Pin 30

Output 31

Pin 31

Output 32

Pin 32

Output 41

Pin 33

Output 42

Pin 19

Ground

Pins 34 and 35

Not Used Note: Input[ ] indicates the input of housekeeping alarm. The figure means that same order of tens makes the same pair e.g. 11/12 forms a pair. IDU side interface uses that of photo-coupler, the photo-coupler turns ON if pair elements with each other. Output[ ] indicates the output of housekeeping alarm. Figure means the same as in the Input. IDU side output uses the relay interface.

Pin 36

Input terminal of buzzer signal Note: In back-to-back station, the buzzer information transmits to the next station.

3-7

OPERATION

ROI-S04488


Pin 37

NMS/RA (D-sub Connector, 15 Pins)

Output terminal of buzzer signal Note: In back-to-back station, the buzzer information transmits to the next station. Network management system (NMS) data input/output or remote access (RA) data input/output Note: When the PM CARD is not mounted on the equipment, this connector is used for Remote Access. PM CARD

RA

Pin 1

Party alarm management system (PAMS) TXD

RA TXD

Pin 2

EMS TXD/TXD+

RA GND

Pin 3

EMS RXD/TXD−

RA RXD

Pin 4

EMS TXDR

RA RTS

Pin 5

EMS TRS/RXD+

RA CTS

Pin 6

EMS CTS/RXD−

Pin 7

Ground

Pin 9

PAMS RXD

Pin 10

NMS TXD/TXD+

Pin 11

NMS RXD/TXD−

Pin 12

NMS TXDR

Pin 13

NMS RTS/RXD+

Pin 14

NMS CTS/RXD−

LA PORT (D-sub Connector, 15 pin)

3-8

Description

Control/monitoring signal input/output from/to personal computer

Pin 1

TXD

Pin 3

RXD

Pin 4

RTS

Pin 5

CTS

Pin 11

LOCAL CTS

Pin 12

LOCAL RTS

OPERATION

ROI-S04488


Description

Pin 13

LOCAL RXD

Pin 15

LOCAL TXD

Pins 2, 8 and 14

Ground

NMS LAN (RJ45 8 pins)

Network management station (PNMS) data input/output

Pin 1

LAN PNMS TX+

Pin 2

LAN PNMS TX−

Pin 3

LAN PNMS RX+

Pin 6

LAN PNMS RX−

WS /SC LAN (RJ45 8 pins)

Way side signal input/output For 120 ohms balanced interface

Pin 1 (+) and Pin 2 (−)

WS OUT

Pin 4 (+) and Pin 5 (−)

WS IN

Pin 8

Frame Ground (G) For 75 ohms unbalanced interface

Pin 1 and Pin 8 (G)

WS OUT

Pin 4 and Pin 8 (G)

WS IN Note: Available if WS INTFC is equipped. Disable when SC LAN INTFC is equipped.


DSC data for LAN

Pin 1

LAN DSC TX+

Pin 2

LAN DSC TX−

Pin 3

LAN DSC RX+

Pin 6

LAN DSC RX− Note: Available when SC LAN INTFC is equipped. Disabled when ALM INTFC, ASC INTFC or DSC INTFC 64K is used.

3-9

OPERATION

ROI-S04488


SEL V (LINE IN) (Molex M5557-4R Connector, 4 Pins)

FG

3-10

Description

−20 V to −60 V/+20 V to +60 V DC power input Note: The range of DC power input depends on system requirement.

Pin 1

0 V*4 (or +48 V*5)

Pin 2

−48 V*4 (or 0 V*5) Note: *4 −20 V to −60 V DC power input. *5 +20 V to +60 V DC power input. Frame ground

OPERATION

ROI-S04488

Table 3-2 Interface Terminals and Jacks of 1+1 System (1/9) Terminal


Description

2.048 Mbps HDB3 coded data input/output from/to DTE (CH 1 to CH 8)

Pins 1 (+) and 2 (−)

CH8 data input

Pins 3 (+) and 4 (−)

CH7 data input

Pins 6 (+) and 7 (−)

CH6 data input

Pins 8 (+) and 9 (−)

CH5 data input

Pins 11 (+) and 12 (−)

CH4 data input

Pins 13 (+) and 14 (−)

CH3 data input

Pins 16 (+) and 17 (−)

CH2 data input

Pins 18 (+) and 19 (−)

CH1 data input

Pins 20 (+) and 21 (−)

CH8 data output

Pins 22 (+) and 23 (−)

CH7 data output

Pins 25 (+) and 26 (−)

CH6 data output

Pins 27 (+) and 28 (−)

CH5 data output

Pins 29 (+) and 30 (−)

CH4 data output

Pins 31 (+) and 32 (−)

CH3 data output

Pins 34 (+) and 35 (−)

CH2 data output

Pins 36 (+) and 37 (−)

CH1 data output

Pins 5,10,15,24 and 33

Ground


2.048 Mbps HDB3 coded data input/output from/to DTE (CH 9 to CH 16) (for 16 x 2 MB system only)

Pins 1 (+) and 2 (−)

CH16 data input

Pins 3 (+) and 4 (−)

CH15 data input

Pins 6 (+) and 7 (−)

CH14 data input

Pins 8 (+) and 9 (−)

CH13 data input

Pins 11 (+) and 12 (−)

CH12 data input

3-11

OPERATION

ROI-S04488


Description

Pins 13 (+) and 14 (−)

CH11 data input

Pins 16 (+) and 17 (−)

CH10 data input

Pins 18 (+) and 19 (−)

CH9 data input

Pins 20 (+) and 21 (−)

CH16 data output

Pins 22 (+) and 23 (−)

CH15 data output

Pins 25 (+) and 26 (−)

CH14 data output

Pins 27 (+) and 28 (−)

CH13 data output

Pins 29 (+) and 30 (−)

CH12 data output

Pins 31 (+) and 32 (−)

CH11 data output

Pins 34 (+) and 35 (−)

CH 10 data output

Pins 36 (+) and 37 (−)

CH 9 data output

Pins 5,10,15,24 and 33

Ground

10/100BASE-T IN/OUT (Modular Connector RJ-45 8pins) (PORT1/PORT2)

LAN signal input/output (optional) (MDI-X/MDI auto-sensing) MDI MDI-X

Pin 1

RD +

TD +

Pin 2

RD −

TD −

Pin 3

TD +

RD +

Pin 6

TD −

RD −


TX IF signal output to ODU and RX IF signal input from ODU Caution: Do not connect other cables to this jack, because the −43 V DC power is superimposed on this jack. Danger: Do not touch the jack core before turning off power switch.

3-12

OPERATION

ROI-S04488


OW/DSC/ASC (D-sub Connector, 25 Pins)

Description

Engineering orderwire (EOW), digital service channel (DSC), analog service channel (ASC) and ALARM signal input/output

Pins 1 (+) and 2 (−)/ Pins 1 and 2*2


Pins 3 (+) and 4 (−)/ Pins 3 and 4*2


Pins 5 (+) and 6 (−)

EOW input (VF)

Pins 7 (+) and 8 (−)

64 kHz clock input*1

Pins 9 (+) and 10 (−)

DSC1 input (RS-232C, 64K (G.703)*1 or 64K (V.11)*1)

Pins 11 (+) and 12 (−)

DSC2 input (RS-232C, RS-422 or RS-485)

Pins 14 (+) and 15 (−)/ Pins 14 and 15*2


Pins 16 (+) and 17 (−)/ Pins 16 and 17*2


Pins 18 (+) and 19 (−)

EOW output (VF)

Pins 20 (+) and 21 (−)

64 kHz clock output*1

Pins 22 (+) and 23 (−)

DSC1 output (RS-232C, 64K (G.703)*1 or 64K (V.11)*1)

Pins 24 (+) and 25 (−)

DSC2 output (RS-232C, RS-422 or RS-485)

Pin 13

Ground Notes:1. *1 Optional 2. Both ASC and DSC 64K cannot be used simultaneously.

3-13

OPERATION

ROI-S04488


ALM (D-sub Connector, 37 Pins)

3-14

Description

Alarm and answer signal input/output


No. 1 transmitter alarm output*3 Between Pins 1 and 2 Normal state : Open Alarm state : Closed



No. 2 transmitter alarm output*3 Between Pins 4 and 5 Normal state : Open Alarm state : Closed



No. 1 receiver alarm output*3 Between Pins 7 and 8 Normal state : Open Alarm state : Closed



No. 2 receiver alarm output*3 Between Pins 10 and 11 Normal state : Open Alarm state : Closed


Pins 14

Buzzer signal output Note: The terminal is used as an input terminal of buzzer signal for the back-to-back station.

Pins 15

Buzzer signal input Note: The terminal is used as an input terminal of buzzer signal for the back-to-back station.


BER alarm output when BER worse than 10-6/10-5/10-4/10-3 (selectable)*3 Between Between Pins 20 and 21 Pins 20 and 22 Normal state : Open Closed Alarm state : Closed Open

OPERATION

ROI-S04488


Description


Maintenance alarm output*3 Between Pins 23 and 24 Normal state : Open Alarm state : Closed

Pins 26 (COM), 27 (No. 2) and 28 (No. 1)

Switching answer signal output for transmitter Between Between Pins 26 and 27 Pins 26 and 28 No. 1 CH selection : Open Closed No. 2 CH selection : Closed Open

Pins 29 (COM), 30 (No. 2) and 31 (No. 1)

Switching answer signal output for receiver Between Between Pins 29 and 30 Pins 29 and 31 No. 1 CH selection : Open Closed No. 2 CH selection : Closed Open 3 Note:* The BER threshold values and alarm items are set in factory (default). To change the setting of alarm items by the PC, refer to Section 3.4.1 "Alarm Table" of this Manual.

AUX ALM (D-sub Connector, 25 Pins)


Transmission network surveillance auxiliary Note: When an optional PM CARD module is mounted, following input/output terminals (Pins 1 to 21) are used as housekeeping alarm/control interface.

Pin 1

Input 11

Pin 2 (G)

Input 12

Pin 3

Input 21

Pin 4 (G)

Input 22

Pin 5

Input 31

Pin 6 (G)

Input 32

Pin 7

Input 41

Pin 8 (G)

Input 42

Pin 9

Input 51

Pin 10 (G)

Input 52

Pin 11

Input 61

3-15

OPERATION

ROI-S04488


Description

Pin 12 (G)

Input 62

Pin 13

Ground

Pin 14

Output 11

Pin 15

Output 12

Pin 16

Output 21

Pin 17

Output 22

Pin 18

Output 31

Pin 19

Output 32

Pin 20

Output 41

Pin 21

Output 42 Note: Input[ ] indicates the input of housekeeping alarm. The figure means that same order of tens makes the same pair e.g. 11/12 forms a pair. IDU side interface uses that of photo-coupler, the photo-coupler turns ON if pair elements with each other. Output[ ] indicates the output of housekeeping alarm. Figure means the same as in the Input. IDU side output uses the relay interface.

Pins 22 and 23

Remote switching control signal input for release

Pins 22 and 24

Remote switching control signal input for No. 1 channel No. 1 channel selection : closed

Pins 22 and 25

Remote switching control signal input for No. 2 channel No. 2 channel selection : closed

NMS/RA (D-sub Connector, 15 Pins)

3-16

Network management system (NMS) data input/output or remote access (RA) data input/output Note: When the PM CARD is not mounted on the equipment, this connector is used for Remote Access. PM CARD

RA

Pin 1

Party alarm management system (PAMS) TXD

RA TXD

Pin 2

EMS TXD/TXD+

RA GND

Pin 3

EMS RXD/TXD−

RA RXD

OPERATION

ROI-S04488


Description

Pin 4

EMS TXDR

RA RTS

Pin 5

EMS TRS/RXD+

RA CTS

Pin 6

EMS CTS/RXD−

Pin 7

Ground

Pin 9

PAMS RXD

Pin 10

NMS TXD/TXD+

Pin 11

NMS RXD/TXD−

Pin 12

NMS TXDR

Pin 13

NMS RTS/RXD+

Pin 14

NMS CTS/RXD−

LA PORT (No. 1) (D-sub Connector, 15 pin)

Control/monitoring signal input/output from/to the personal computer for No. 1 channel

Pin 1

TXD

Pin 3

RXD

Pin 4

RTS

Pin 5

CTS

Pin 11

LOCAL CTS

Pin 12

LOCAL RTS

Pin 13

LOCAL RXD

Pin 15

LOCAL TXD

Pins 2, 8 and 14

Ground

LA PORT (No. 2) (D-sub Connector, 15 pin)

Control/monitoring signal input/output from/to the personal computer for No. 2 channel

Pin 1

TXD

Pin 3

RXD

Pin 4

RTS

Pin 5

CTS

Pin 11

LOCAL CTS

3-17

OPERATION

ROI-S04488


Pin 12

LOCAL RTS

Pin 13

LOCAL RXD

Pin 15

LOCAL TXD

Pins 2, 8 and 14

Ground

LA PORT (COMMON) (D-sub Connector, 15 pin)

Control/monitoring signal input/output from/to personal computer for both No. 1 and No. 2 channels

Pin 1

TXD

Pin 3

RXD

Pin 4

RTS

Pin 5

CTS

Pin 11

LOCAL CTS

Pin 12

LOCAL RTS

Pin 13

LOCAL RXD

Pin 15

LOCAL TXD

Pins 2, 8 and 14

Ground

NMS LAN (RJ45 8 pins)

Pasolink network management station (PNMS) data input/ output

Pin 1

LAN PNMS TX+

Pin 2

LAN PNMS TX−

Pin 3

LAN PNMS RX+

Pin 6

LAN PNMS RX−

SC LAN (RJ45 8 pins)

3-18

Description

DSC data for LAN

Pin 1

LAN DSC TX+

Pin 2

LAN DSC TX−

Pin 3

LAN DSC RX+

Pin 6

LAN DSC RX−

OPERATION

ROI-S04488



Description

Way side signal input/output For 120 ohms balanced interface

Pin 1 (+) and Pin 2 (−)

WS OUT

Pin 4 (+) and Pin 5 (−)

WS IN

Pin 8

Frame Ground (G) For 75 ohms unbalanced interface

Pin 1 and Pin 8 (G)

WS OUT

Pin 4 and Pin 8 (G)

WS IN Note: Available if WS INTFC is equipped. Disable when SC LAN INTFC is equipped.


DSC data for LAN

Pin 1

LAN DSC TX+

Pin 2

LAN DSC TX−

Pin 3

LAN DSC RX+

Pin 6

LAN DSC RX− Note: Available when SC LAN INTFC is equipped. Disabled when ALM INTFC, ASC INTFC or DSC INTFC 64K is used.

SELV (LINE IN) (Molex M5557-4R Connector, 4 Pins)

FG

-20 V to -60 V DC or +20 V to +60 V DC power input Note: The range of DC power input depends on system requirement.

Pin 1

0 V*4 (or +48 V*5)

Pin 2

−48 V*4 (or 0 V*5) Note: *4 −20 V to −60 V DC power input. 5 * +20 V to +60 V DC power input. Frame ground

3-19

OPERATION

ROI-S04488

3.2 Controls, Indicators and Test Jacks The controls and indicators and test jacks on the IDU (see Fig. 3-3) are described as follows. IDU indicator Lights when: • Input data stream of CH ( ) from DTE is lost, • AIS (all “1”) signal of CH ( ) is received from DTE (selectable), • TX/RX clock synchronization is lost at the DPU section, • If a 2 MB is fed to a CH which is selected as "Not Used" (selectable), • If a 2 MB is fed to the WS CH after setting to "Not Used" (selectable), • AIS signal of CH ( ) is sent (depending on system requirement) (selectable), • Bipolar output pulse of CH ( ) is lost at the INTFC section, • Carrier synchronization is lost at the DEM section, • High bit error rate (High BER) is worse than preset value (1x10-3) at the DPU section, • BER is worse than preset value at the DPU section (1x10-3, 1x10-4, 1x10-5 or 1x10-6, selectable), • Frame synchronization is lost at the DPU section, • VCO synchronization is lost at the MOD section, • Output data stream or master clock signal is lost at the DPU(TX) section, ODU indicator Lights when: • Transmit RF power decreases 3 dB from normal at the ODU, • Receiver input level decreases by a preset value from squelch level at the ODU, • APC loop of local oscillator unlocks at the ODU or, • IF signal from the IDU is lost at the ODU,

3-20

OPERATION

ROI-S04488

MAINT indicator Lights when the following conditions are controlled by the PC: • Maintenance condition, • Loopback condition, • BER AIS condition, • MOD CW condition, • MUTE (TX output power) condition, PWR switch: Turns input DC power on or off. PWR indicator: Lights when equipment is in normal operation. RESET switch: RESET switch initiates the U operation. CALL switch: Transmits calling signal on engineering orderwire (EOW). Then, buzzer in opposite station rings. EOW jack: Gives access to EOW signal immediately when headset is connected. 100M indicator: Lights when 100 Mbps is selected in data speed of LAN interface. Goes out when 10 Mbps is selected in data speed of LAN interface. LINK/ACT indicator: Lights when the IDU and associated equipment are linked. COLX/DUPLEX indicator: Lights when : • The input/output LAN signal is in Full Duplex mode, • When the LAN signal in Half Duplex mode, a collision condition occurs.

3-21

OPERATION

ROI-S04488

TX ALM 1 indicator (Only for 1+1 system): Lights when: • Transmitter RF output power decreases 3 dB from normal at the No. 1 channel ODU, • APC loop of the local oscillator unlocks or IF signal from the IDU is lost at the No. 1 channel ODU, • Output data stream or master clock signal is lost at the No. 1 channel DPU (TX), • VCO synchronization is lost at the No. 1 channel MOD, • If a 2 MB is fed to a CH which is selected as "Not Used" (selectable) at the No. 1 channel IDU, • If a 2 MB is fed to the WS CH after setting to "Not Used" (selectable) at the No. 1 channel IDU, • Communication between U of No. 1 channel ODU and U on the IDU is lost. TX ALM 2 indicator (Only for 1+1 system) Lights when: • Transmitter RF output power decreases 3 dB from normal at the No. 2 channel ODU, • APC loop of the local oscillator unlocks or IF signal from the IDU is lost at the No. 2 channel ODU, • Output data stream or master clock signal is lost at the No. 2 channel DPU (TX), • VCO synchronization is lost at the No. 2 channel MOD, • If a 2 MB is fed to a CH which is selected as "Not Used" (selectable) at the No. 2 channel IDU, • If a 2 MB is fed to the WS CH after setting to "Not Used" (selectable) at the No. 2 channel IDU, • Communication between U of No. 2 channel ODU and U on the IDU is lost.

3-22

OPERATION

ROI-S04488

RX ALM 1 indicator (Only for 1+1 system) Lights when: • Receiver input level decreases lower than a preset value from squelch level at the No. 1 channel ODU, • APC loop of the local oscillator unlocks at the No. 1 channel ODU, • IF signal is lost at the No. 1 channel DEM, • High BER is worse than preset value (1 × 10−3) at the DPU, • BER is worse than preset value at the No. 1 channel DPU (1 × 10−3, 1 × 10−4, 1 × 10−5 or 1 × 10−6 selectable), • Frame synchronization is lost at the No. 1 channel DPU, • Communication between U of No. 1 channel ODU and U of the IDU is lost. RX ALM 2 indicator (Only for 1+1 system) Lights when: • Receiver input level decreases lower than a preset value from squelch level at the No. 2 channel ODU, • APC loop of the local oscillator unlocks at the No. 2 channel ODU, • IF signal is lost at the No. 2 channel DEM, • High BER is worse than preset value (1 × 10−3) at the No. 2 channel DPU, • BER is worse than preset value at the No. 2 channel DPU (1 × 10−3, 1 × 10−4, 1 × 10−5 or 1 × 10−6 selectable), • Frame synchronization is lost at the No. 2 channel DPU, • Communication between U of No. 2 channel ODU and U of the IDU is lost. TX OPR 1 indicator (Only for 1+1 system): Lights when the modulator and transmitter of No. 1 channel are selected.

3-23

OPERATION

ROI-S04488

TX OPR 2 indicator (Only for 1+1 system): Lights when the modulator and transmitter of No. 2 channel are selected. RX OPR 1 indicator (Only for 1+1 system): Lights when the demodulator and receiver of No. 1 channel are selected. RX OPR 2 indicator (Only for 1+1 system): Lights when the demodulator and receiver of No. 2 channel are selected. OPR SEL No. 1-AUTO-No. 2 switch (Only for 1+1 system) Enables channel switching depending on the setting position in Maintenance conditions as follows: No. 1 : Manually select No. 1 channel AUTO : Automatic switchover control No. 2 : Manually select No. 2 channel Caution: Before the start of maintenance, including operation of the OPR SEL SW on the front of the equipment, select the equipment to maintenance mode using the LCT. After all operation for maintenance have been completed, perform MAINT OFF setting. EOW

PASOLINK

CALL

ODU IDU

RESET PWR

IDU for 1+0

MAINT

NMS LAN

FUSE (7.5A) −

NMS/RA

+

SELV

LA PORT

PASOLINK RESET PWR ODU IDU MAINT FUSE (7.5A) −

+

No. 1 CH MD UNIT

SELV

LA PORT EOW CALL

RESET OPR SEL No.1

MS LAN

PASOLINK OPR

ALM

TX RX TX

SW UNIT

RX 1

− DSC/ASC

NMS/RA

LA PORT

2

IDU for 1+1

No.2

PASOLINK

No. 2 CH MD UNIT

RESET PWR ODU IDU MAINT FUSE (7.5A) − LA PORT

+

SELV

Fig. 3-3 Controls, Indicators and Test Jacks of the IDU

3-24

Odu Description and Operation GENERAL

ROI-S04605

1.1 Equipment Composition The ODU is provided with modules which are connected directly or by coaxial cable as shown in Table 1-1. Table 1-1 Component Module Arrangement APPLICATION LOCATION NO. *

MODULE

1

RF CKT

2

IF CKT

3

PS

7 GHz H0738( )

8 GHz H0739( )

13 GHz H0330( )

15 GHz H0331( )

H0722()

H0723()

H0360( )

H0361( )

H0721()

18 GHz H0332( ) H0362( )

H0323( )

23 GHz H0333( )

26 GHz H0334( )

38 GHz H0335( )

H0363( )

H0364 )

H0365( )

H0321( ) H0390()

Note: * Location numbers are keyed to those in Fig. 1-2.

2 (IF CKT) 1 (RF CKT)

1

A RX LEV MON

IFL

FG

3

View A

Note: Location numbers are keyed to those in Table 1-1. Fig. 1-2 Component Module Arrangement

1-2


ROI-S04605

2. FUNCTIONAL OPERATION This chapter describes the functional operation of the ODU which comprises of transmitter section, receiver section, and alarm and control section. A functional block diagram is shown in Fig. 2-1.

2.1 Transmitter Section This section describes Engineering Orderwire (EOW) signal demodulation and IF-to-RF conversion. The 850 MHz IF signal which comprises an EOW signal, monitor (MON) signal, alarm and control signals and DC component from the IDU is separated through the MPX circuit. The EOW signal is processed at the U and fed to the RX LEV MON jack. The DC component is applied to the PS module to produce regulated DC voltages which are used in the ODU. The 850 MHz IF signal enters the mixer (MIX) through the AGC AMP which compensate for any input IF signal level variations. The MIX mixes the incoming 850 MHz IF signal with a [ ] GHz band local signal generated by the synthesized RF local oscillator to produce the specified transmit RF signal. The transmit RF signal enters a BPF which eliminates undesired components generated in the IF-to-RF conversion. The filtered RF signal goes to the RF amplifier where it is amplified to the required level by an automatic level control (ALC) circuit. The amplified RF signal is then fed to the antenna through the Duplexer. The automatic transmitter power control (ATPC) function automatically varies the TX output power according to path conditions. Fading exerts heavy influences on propagation, causing the receive signal level at the opposite station to vary. The ATPC function operates by controlling the transmitter output power of the local station according to the variation of the received signal level at the opposite station. The received signal level variation at the opposite station is informed to the local station using the ATPC bits in the overhead. A constant transmit output power is maintained using the ALC function which is provided in the RF CKT module. The ALC circuit detect the transmit output power using a diode to obtain a DC voltage proportional to the transmit power. The gain of the RF amplifier is controlled inversely with this detected DC voltage to maintain the transmit output power within the specified limits.

2-1

2-2

IF

RX LEV MON (EOW)

(TO/FROM IDU)

-40 V PS

ALM

MPX

+7 V -7 V

TX IF LEV CTRL

TX IF LEV MON

T PWR CTRL

T PWR MON

TX F DATA 1/2

IF:850 MHz

20 MHz

AGC

MAIN IF AMP

PD

MIX

AGC AMP

IF CKT

PD

1/2

VCO

VCO

Fig. 2-1 Functional Block Diagram of the ODU

-40 V

U

SYNTH RF ALM

RX IF F DATA SYNTH IF ALM

RX IF LEV MON

RX IF LEV CTRL

IF:70 MHz

RF CKT

MIX

LO AMP

MIX

TRX

RF AMP

RF AMP

RF IN/OUT

FUNCTIONAL OPERATION ROI-S04605


ROI-S04605

2.2 Receiver Section This part describes RF-to-IF conversion, IF-to-IF conversion and EOW signal modulation. An RF signal received from the antenna are filtered by the BPF and enters the first MIX. The first MIX mixes the applied RF signal with an local signal which is generated by a synthesized RF local oscillator to produce a first IF signal. Then, the IF signal is fed to the second MIX through the BPF which eliminates undesired components. The second MIX mixes the 1st IF signal with a local signal generated by a synthesized IF local oscillator to produce a 70 MHz IF signal. The 70 MHz IF signal es a 70 MHz BPF which eliminates undesired components. The filtered 70 MHz IF signal goes to the main IF amplifier (MAIN IF AMP). The IF signal amplified by the MAIN IF AMP with automatic gain control (AGC) es through the MPX circuit. The MPX circuit combines alarm, monitoring and response signals which are processed at the U in the ODU and the EOW signal with the IF signal. These signals are fed to the IDU from the MPX circuit.

2.3 Alarm and Control Section Alarm and control functions of the ODU are described here. Fault detection circuits are provided in the ODU. The detected alarm signals are gathered into the U which processes the alarm signals to be sent to the IDU. Here, the TX PWR ALM signal is produced by the T PWR MON signal issued from the RF AMP circuit and the IF INPUT ALM signal is produced by the TX IF LEV MON signal issued from the IF amplifier with AGC AMP circuit. The RX LEV ALM is also produced by the RX IF LEV MON signal issued from the MAIN IF AMP circuit. The initiated alarm signals are sent to the IDU combined with the IF signal through the MPX circuit. Fault in the ODU can be monitored with alarm indicators on the IDU. The received RF signal level can be monitored at the RX LEV MON jack of the ODU by connecting the OW/RX LEV Monitor (optional) or digital voltmeter. In addition, the following operating condition of the ODU are monitored at the IDU by connecting the personal computer. • Transmitter output power • Received signal level • DC voltage

2-3


ROI-S04605

The setting of the radio frequency and TX output power are performed from the IDU using personal computer. The TX output power can be controlled by a control command signal (T PWR CTRL) from the IDU. To communicate with the opposite station or with the IDU using orderwire, an optional OW/RX LEV monitor unit is necessary, the HEAD SET jack is provided on the OW/RX LEV Monitor. Therefore, connect the OW/RX LEV Monitor to the RX LEV MON jack on the ODU. Table 2-1 Alarm Indication and Reporting INITIATING MODULE

RF CKT

ALARM CONDITION

ALARM INITIATED

IF input signal from IDU lost

IF INPUT ALM (*)

Transmit RF power decreases 3 dB from nominal

TX PWR ALM (*)

APC loop of TX local oscillator or first local oscillator for RX unlocks

APC 1 ALM (*)

APC loop of second local oscillator for RX unlocks

APC 2 ALM (*)

Receiver input level decreases by preset value from squelch level

RX LEV ALM (*)

Communication between IDU and ODU is lost

OPERATION ALM (*)

Note: (*) 1 or 2 for channel No. in 1+1 system.

2-4 4 pages

OPERATION

ROI-S04605

3. OPERATION This chapter provides instructions for operating the ODU. Included are information on the interface terminals, interface jacks, controls, indicators, test jacks, equipment start-up, and equipment shut-down.

3.1 Interface Terminals and Jacks The equipment has interface terminals and jacks to connect with the associated equipment. These interface terminals and jacks are located as shown in Fig. 3-1 and are used as described in Table 3-1.

RF IN/OUT

(FG) RX LEV MON

IFL

FG

IF IN/OUT (FRONT VIEW)

(REAR VIEW)

13-38 GHz Band ODU

7-38 GHz Band ODU

RF IN/OUT

(REAR VIEW)

7/8 GHz Band ODU Fig. 3-1 Interface Terminal and Jack Locations

3-1

OPERATION

ROI-S04605

Table 3-1 Interface Terminals and Jacks TERMINAL


DESCRIPTION

TX IF signal input and RX IF signal output Danger: Do not disconnect the coaxial cable before turning off the power switch on the IDU.

RF IN/OUT (7/8 GHz : N-Female) (13/15 GHz : PBR-140) (18/23 GHz : PBR-220) (26 GHz : PBR-260) (38 GHz : PBR-320)

3-2

RF signal input/output from/to antenna

OPERATION

ROI-S04605

3.2 Controls, Indicators and Test Jacks The controls, indicators and test jacks of the ODU are shown in Fig. 3-2. These functions are described as follows.

RX LEV MON

IFL

FG

RX REV MON

Fig. 3-2 Controls, Indicators and Test Jacks for 7-38 GHz Band ODU

RX LEV MON jack: • Gives access to monitor receive level voltage. • Facilitate the transmission of EOW signal between IDU and ODU when the EOW/RX LEV Monitor and headset is connected. The X0818A EOW/RX LEV Monitor (optional) is used for operation and maintenance as shown in Fig. 3-3. The operation range of the OW/RX LEV Monitor is 0 °C to +45 °C and its functions are described as follows: METER: Indicates a DC voltage proportional to the receiving RF level. OW indicator: Lights when OW ON-OFF switch is set to ON. If the OW indicator is not lit even after setting the OW switch to ON, replace the battery (6F22(UB)/9V).

3-3

OPERATION

ROI-S04605

OW ON-OFF switch: Enables transmission of OW signal between IDU and ODU. The OW switch should be set to ON position to enable OW communication. VOL control: Enables to adjust receive OW voice level. RX LEV/OW IN jack: Provide a DC voltage for RX LEV monitoring and OW signal from / to the ODU. HEADSET jack: Permits communication between IDU and ODU when orderwire headset is connected.

1

3

2

4 5

0

METER

V

OW SWITCH PASOLINK OW ON OFF

ANTENNA POINTING MONITOR

OW INDICATOR

OW

VOL CONTROL VOL

BATTERY (6F22(UB)/9V)

RX LEV/OW IN JACK HEADSET JACK

RX LEV/OW IN HEADSET

Fig. 3-3 Controls, Indicators and Test Jacks of OW/RX LEV Monitor

3-4

Pasolink Digital microwave radio system Installation guide

NEC

PASOLINK installation procedure

Preparation work Preparation work is that work done before going to install any site. That work include the following steps:

Packing list check

Equipment and Materials Sorting

Equipment and materials delivery to site

During the packing list check, we shall determine which case include which items (materials)

Sorting means assignment of equipment and materials to each site.

The delivery to site should be by safe way, by care persons, and up to shelter or top of the building.

Notes: 1- The preparation work can be done for site by site or for all sites depending on company schedule And resources. 2- The next page include a detailed list of the equipment and materials to be sorted for each site.

January 2002

NEC


Equipment and Materials list This list depending on the following conditions: 1- All sites will use one antenna configuration; 2- The equipment and materials for one site one direction only. Equipment list: 1- Antenna Check the frequency plan and the link calculation for the antenna diameter 2- Hybrid. 3- Two ODU’s Check if the ODU’s low or high frequency according to the frequency plan.

3- Brackets For the antenna and the hybrid

4- IF cable Prepare the required length of the IF cable

5- Connectors of the IF cable. Prepare four pieces of that connector 6- RD unit.(or suitable interface ) 7- One IDU. 8- 2M cables and connectors Depending on, how many cables? how long? What is the required input impedance ? according to the system capacity and the impedance is 75 or 120 9- The power and grounding cables. 10- The installation materials Polts, nuts, tiewrap, terminals, tap, rupper tap….etc.

January 2002

NEC


Before going to site check list Before going to any site, please be sure you completely prepared the following items: 1- The installation tools. 2- The test equipment ,materials ,and tools.( for test work only) 3- Site installation drawings. 4- All labels/stickers (hard and soft copy) 5- Frequency plan and system configuration documents. 6- Test procedure and test data sheets .( for test work only) 7- Confirm access to site/station. 8- Check the condition of the vehicle to be used. 9- Make sure you and your staff are in good conditions (physically) 10- Confirm the site/station entrance conditions. 11- Arrive to site/station safely.

Notes: 1- The installation tools (per team) include: Description

Tap rule 50 M. Square 150mm x 100 mm. Scriber Level A-type 450 mm. Tester . Wrench set A-type 6-24 mm Adjustable wrench 150 mm Adjustable wrench 250 mm Socket wrench kit Screw driver (-) 150 Screw driver (+) NO.3 (150) Straight shank drill set (3.0 – 13.0 mm) Concrete drill set (4.8 – 18.0 mm) Drill bag Electric drill 6.5 mm (230 V) Hammer drill 19 mm (230 V) Point drill 6.4 mm (with holder) Point drill 6.4 mm Center punch 125 mm Hack saw frame

January 2002

Quantity 1 1 1 1 1 2 2 2 1 1 1 5 5 2 1 1 1 1 1 2

NEC


Hack saw

Description Hammer (450 g) Set file 5 EA/set(smooth) Flat file 250 mm (second –cut) Flat file 250 mm (smooth) Crimping tool 1.25 – 8 sq. 5N18 Hydraulic crimping tool 14-150 sq. Soldering iron 60 W Holder for soldering iron Tip for soldering iron 60 W Hand tool kit Step ladder Power cable reel Tool box Box end wrench Adjustable wrench 375 mm Safety helmet Safety belt Oil can

20 Quantity 1 1 1 1 1 1 2 2 2 4 2 1 2 2 2 5 3 1

2-The test equipment an tools include: Description

Digital multimeter Lap top computer ( with the appropriate software) RS232 Cable. BER Test set (for 2M channels). 2M test chords. 2M insertion termination tool. Jumpering cable(wires) for the 2M channels loopback. Hand tools kit. Step ladder. Two adjustable wrench (150 mm,250 mm) Soldering iron 60 W. Crimping tool 1.25 – 8 sq. 5N18 Hydraulic crimping tool. Wrench set (6-24 mm). Box end wrench. Canvas bag. Power outlets extension. Power cable reel. Two safety belt. Black bag or equivalent for tools

January 2002

Quantity 1 1 2 2 4 1 N/A 1 1 2 1 1 1 1 1 1 1 1 2 1

NEC


Installation Flow Chart The standard installation is summarized in this section. Included herein is information on typical installation work flow and installation guide for IDU installation, ODU installation, antenna (ANT) installation, waveguide connection and cable connections. The installation flow diagram is shown below.

Unpacking of IDU

Unpacking of ODU

Unpacking of Accessories

IDU Mounting

ODU Mounting

Cable Termination

Waveguide Connection

Frame Grounding

Cable Connections

Waterproof Protection

January 2002

NEC


Packing list for IDU,ODU,and ANT.:

ANTENNA DIRECT MOUNTING TYPE

TX High/ Low Sub- band A B C D CH____TX ___MHz RATE MB

1

3

2 5

4

6

NAME PLATE

MDP-( )MB-( ) SERIAL No.__________ DATE________ , _______ WEIGHT 4kg(WITH OPTION) NEC Corporation

(G2680) MADE IN JAPAN

WARNING -43V OUTPUT TURN OFF POWER BEFORE DISCONNECTING IF CABLE

January 2002

NEC


IDU Mounting: The installation procedure for the IDU is shown below. (a) Accessories Required • Screwdriver (b) Procedure for Mounting and Dismounting (1) Mounting Mounting method of IDU is shown in Fig. 2-11. (2) Dismounting For dismounting IDU (if necessary), use the following procedure. Step Procedure

1 Hold the IDU so that it does not drop, and remove two screws each from both sides, 2 Take out the IDU from the 19-inch rack. STEP1: Align the IDU to the mount position on the 19-inch rack.

SCREW Flat washer

Screw

Flat washer

Step2. Fix each side of the IDU to the rack with the two screws(M5)

More than one rack*

Step3. To mount the IDU in a 19-inch rack,allow space more than 200mm to the rear section and space for one unit to the top and bottom

More than 200mm WALL

More than one rack unit*

Note: *when the environment temperature is mor then 40 ºc

January 2002

NEC


Mounting of IDU.

Mounting of ODU and ANT.: There are two diffwerent cases as follows: 1- The ODU is direct mounted to the antenna. 2- The ODU is mounted with a separate bracket.

According to which case you have ,you will follow the assempling procedure included with each antenna And you will know how to fix that ODU.

Note: In case two you have to install an additional RF cable between the ODU and the Antenna.

The tools required: Wrench, Monkey wrench or Torque wrench , and suitable screwdriver. ODU Demounting (if necessary): 1- Remove the four fixed bolts from the ODU. 2- Then demount the ODU.

January 2002

NEC


Frame Grounding: In mounting the IDU and odu, perform frame groungding. Location of frame grounding in each of IDU and ODU is shown below:

January 2002

NEC


Cable Termination: In the following, list of tools and material and the method for cable termination are described. The following cables are described for reference. • BNC connector • D-sub connector • N-P connector • Molex M5557-4R connector Note: Use ISO standardized screw (mm unit) for D-SUB connector. The necessary tools and materials are summarized as follow. Tools and Material List

1 Soldering Iron 2 Knife 3 Measure 4 Wire Stripper 5 Adjustable Wrench 6 Hand Crimping Tool (CL250-0012-2/CL250-0013-5)For D-Sub connector (57026-5000/57027-5000)For Molex connector 7 Solder

January 2002

NEC

Terminating Coaxial (Baseband Signal) Cable with BNC Connector:

January 2002


NEC

Terminating Coaxial (IF Signal) Cables with N-P Connector:

January 2002


NEC

January 2002


NEC

Terminating Power Supply Cables with Molex Connector:

January 2002


NEC


Hand Crimping Tool type

Outside diameter of cable

57026-5000

Φ1.5 to 1.8 Φ1.8 to 2.2 Φ2.3 to 2.6 Φ2.6 to 3.1

57027-5000

WIRE STRIP LENGTH

January 2002

set position 1 2 1 2

NEC


Cable and Terminal Connections: During cables and terminal connections, refer to the following connecting method. Caution: Please pay attention not to load excessive force at BNC connector on IDU. In case of tying up cables with BNC connectors in a bundle, please fix them on bay (or something ) within one meter length from IDU. (a) Connect baseband signal cable(s) Align the BNC connector guide groove to the other connector guide ridge and turn the connector cap clockwise fully until it is locked firmly. (b) Connect IF signal cable Connect the connector and tighten it by turning the tightening ring clockwise. (c) Connect supervisory cable(s) Take care to connect the D-sub connector the right way round and fix it with two screws (M3). (d) Connect power supply cable Take care to catch the Molex connector the right way round. (e) Connect terminal Take care to connect the D-sub connector the right way round and fix it with two screws (M3). The following table shows pin assignment in the IDU and ODU. Note: Use ISO standardized screw (mm unit) for D-SUB connector.

Interface Terminals and Jacks:

January 2002

NEC


TERMINAL

DESCRIPTION

Waterproof Protection: Control/Monitoring signal input/output from/to personal computer LA PORT (D-sub Connector,15 Pins) TXD Pin 1 After RXDfollowing part shall be wrapped by Pin 3 cable connection, the RTS Pin 4 self-bonding CTS Pin 5 LOCAL CTS Pin 11 tape for waterproof (see Following Fig. ), LOCAL RTS Pin 12 LOCAL RXD LOCAL TXD Ground TX IF signal input and RX IF signal output Danger: Do not disconnect the coaxial cable before turning off the power switch on the IDU. RF signal input/output from/to antenna.

Pin 13 Pin 15 Pin 2,8 and 14 ODU IF IN/OUT(N-P Connector) RF IN/OUT 13 GHz PBR140 18 GHz PBR220 26 GHz PBR260 38 GHz PBR320

Waterproof Protection: After cable connection, the following part shall be wrapped by self-bonding tape for waterproof (see Following Fig. ),

This part shall be wrapped by self-b onding tape for waterproof.

ODU

IFL Connector

IF CABLE ODU

Self-bonding tape Note: the self-bonding tape shall be prepared by customer. Location of connector for waterproof

January 2002

OPERATION

ROI-S04488

3.3 Equipment Start-up and Shut-down Procedure for equipment start-up and shut-down are described below.

3.3.1 Start-up Test Equipment and Accessories Required • Agilent 34401A Digital Multimeter (or equivalent) with Test Leads Step

Procedure

Check that the LINE IN voltage is between +20 V to +60 V/ −20 V to −60 V with the digital multimeter, before connecting the power connector to the IDU,

1

Note: The range of DC power input depends on system requirement. 2

Turn on the POWER switch on the IDU (refer to Fig. 3-5), Note: In 1+ 1 system, When neither No.1 nor No.2 channel is working, first set the OPR SEL No.1-No.2 switch on the IDU to neutral position or No.1 or No.2 to be powered up side. When either No.1 or No.2 channel is working, set the OPR SEL No.1-No.2 switch on the IDU to the working channel side, then, turn on the power switch of the not working channel.

3

Allow equipment to warm up for at least 30 minutes. EOW

IDU for 1+0 System

ODU IDU

RESET PWR

MAINT

NMS LAN

FUSE (7.5A) −

NMS/RA

Power Switch LINE IN Connector

PASOLINK

CALL

+

SELV

LA PORT

No.1 Power Switch LINE IN Connector

PASOLINK RESET PWR ODU IDU MAINT

FUSE (7.5A)

−

EOW CALL

IDU for 1+1 System

+

OPR SEL No.1 - No.2 Switch

SELV


MS LAN

PASOLINK OPR

ALM

TX RX TX

RX 1

− DSC/ASC

NMS/RA

2 No.2

LA PORT

PASOLINK

No.2 Power Switch LINE IN Connector


FUSE (7.5A)

− LA PORT

+

SELV

Fig. 3-5 Front View of the IDU for Powering Up

3-29

OPERATION

ROI-S04488

3.3.2 Shut-down Step

1

Procedure

Turn off the POWER switch on the front of the IDU. Note: In 1+1 system, before turn off the POWER switch of No.1 or No. 2 channel, check that the OPR SEL No.1 - No.2 switch is set to channel position to be working.

3.4 Equipment Setting and Monitoring Test Equipment and Accessories Required • Personal Computor • RS-232C cable • Screw Driver The control of the IDU and ODU digital radio system can be carried out via the LA PORT or NMS/RA of the IDU. Connect a Personal Computer to the IDU with an RS-232C cable. The specifications of the required communication port condition of the personal computer are listed below. • Baud rate :

9600

• Data Length :

8

• Parity Check :

None

• Stop bit :

2

• Flow control:

None

• Emulation :

VT100 Video Terminal

• Transmission: MS Hyper Terminal*: • Receiving:

Send line ends with line feeds : Yes Local echo : No CR : No Return on the right edge : Yes Force incoming data to 7-bit ASCII : No

Notes: 1. MS : Microsoft * For Windows 95/98/Me/NT4.0/2000/XP 2. When Windows NT4.0 and MS hyper terminal is used, “Program ” function is not available. In this case, please use other terminal software. (e.g. TeraTerm Pro 2.3: http://hp.vector.co.jp/authors/VA002416/teraterm.html)

3-30

OPERATION

ROI-S04488

The pin assignment is shown in Fig. 3-6. The cable length of RS-232C between the personal computer and IDU equipment shall be less than 15 m. IDU SIDE LA PORT/NMS/RA CONNECTOR PIN SIGNAL No. NAME

PERSONAL COMPUTER SIDE SIGNAL NAME

PIN No.

GND DTR DSR RTS CTS TXD RXD

5 4 6 7 8 3 2

D-SUB CONNECTOR (9 PIN)

(BLACK)

2

GND

5 4 3 1

CTS RTS RXD TXD

D-SUB CONNECTOR (15 PIN)

Interface Terminal (9 pin - 15 pin) Fig. 3-6 RS-232C Cable Pin Assignment

3.4.1 Controls of IDU The setting of each item for the IDU is performed by the PC as follows: Caution:

When is not possible, check if settings of the communication format are proper.

Caution:

Do not turn on the power of the IDU leaving cable connection between the PC and RA PORT of the IDU.

Step

1

Procedure

Connect the personal computer (PC) to the LA PORT or NMS/ RA terminal of the IDU using an RS-232C cable as shown in Fig. 3-7,

3-31

OPERATION

ROI-S04488

EOW

RS-232C CABLE(BLACK)

CALL

PASOLINK ODU IDU

RESET PWR

MAINT FUSE (7.5A) − NMS/RA

+

SELV

LA PORT

IDU

PASOLINK FUSE (7.5A)


+

SELV

LA PORT

PERSONAL COMPUTER

EOW CALL

RESET OPR SEL No.1

PASOLINK OPR

ALM

TX RX TX

RX 1

− NMS/RA

LA PORT

2 No.2

PASOLINK FUSE (7.5A)


+

SELV

LA PORT

IDU

Note: When the controlling or setting of own station are performed, connect the cable to the LA PORT. When the controlling or setting of opposite station are performed, connect the cable to the NMS/RA port. But, if the following cases are applied, the NMS/ RA terminal can not be used. • When the PM CARD is mounted on the equipment. • When H BER alarm is issued. Fig. 3-7 Equipment and Monitoring Setup

Step

Procedure

Note: The keys, “0” to “9” are used for selection of the menu or entering values. “Enter” key is used for confirmation of entering values. “Esc” key is used for cancellation of entering values and display the higher rank menu.

3-32

2

Turn on the power on the PC. Then, operate the communication software (e.g. MS Hyper Terminal),

3

Press the “CTRL” and “D” keys at the same time,

OPERATION

ROI-S04488

Step

Procedure

4

Enter the specified from the keyboard and press the “Enter” key,

:

Note: When the PC is connected to the NMS/RA terminal to control the opposite station, enter for that station. 5

Press the “0” key and “Enter” key. Then, perform step 8. If the should be changed, press the “1” key and “Enter” key,

:******** Change ? (no:0 / yes:1) :

6

Enter the new from the keyboard and press the “Enter” key,

:********* Change ? (no:0 / yes:1) : 1 New :

Note: For , “0” to “9”, “A” to “Z” and “a” to “z” are available (31 letters maximum). 7

To confirm the , re-enter the from the keyboard and press the “Enter” key,

:********* Change ? (no:0/yes:1) : 1 New :********** New (Re-enter) :**********

8 1. 2. 3. 99.

Following menu item is displayed, Setting Maintenance Monitoring Exit

Select function No. :

3-33

OPERATION

ROI-S04488

Procedure

Step

9

Press the “1” key and “Enter” key, then, following setting menu is displayed,

Setting 1. Bit rate (4×2MB) 2. AIS RCVD alarm/status (status) 3. AIS SEND alarm/status (status) 4. TX/RX frequency (5ch) 5. TX power ctrl(0dB) 6. Main channel usage 1-16 (used: UNNN NNNN #### ####) 7. BER alarm threshold (10-4) 8. Frame ID (0) 9. WS channel usage (not used) 10. DSC 1 (232) 11. DSC 2 (232) 12. DEM invert (off) 13. Alarm table 14. Next items 00. Menu 99. Exit Select item No. :

Notes: 1. In item No. 1, the required bit rate is indicated in the parenthesis ( ) on “Bit rate”. Bit rate (2x2:0 / 4x2:1 / 8x2:2 / 16x2:3) :3 Changing the bit rate will cause temporary communication loss. Until the bit rate of the opposite site is changed. The buzzer may be issued until then. 2. In item No. 2, and item No. 3, setting for AIS RCVD/ AIS SEND indication on/off . 3. In item No. 4, both channel numbers are indicates for each No. 1 and No. 2 as No. 1: *ch / No. 2: *ch . 4. In item No. 5 shows in MTPC system, TX power ctrl (ATPC): excepting Twin path TX power ctrl (No. 1: ATPC / No. 2: ATPC is indicator in ATPC system. 5. In item No. 6, following significant symbol letters are used to display the status for each channel. “#” : signifies E1 channel which is inhibited by the hardware restriction or LAN signal transmission.

3-34

OPERATION

ROI-S04488

Step

Procedure

“N” : signifies not used channel in alarmed or controlled status for each E1 channel . “U” : signifies E1 channel which is used. 6. In item No. 10 and item No. 11, 232 (i.e. RS232C) is standard. 10

2.

Press the “2” key and “Enter” key, then, following item is displayed, AIS RCVD alarm/status (status)

AIS RCVD alarm/status (status:0 / alarm:1):

Note: When AIS RCVD “status” is selected, AIS RCVD is not indicated under the input signal alarm state. When AIS RCVD “alarm” is selected, AIS RCVD is indicated under the input signal alarm state. 11

Press either “0” or “1” key and “Enter” key for setting, if not, press the “Esc” key,

12

Press the “3” key and “Enter” key, then, following item is displayed,

3.

AIS SEND status/alarm (status)

AIS SEND status/alarm (status:0 / alarm:1):

Note: When AIS SEND “status” is selected, AIS SEND is not indicated under the AIS state. When AIS SEND “alarm” is selected, AIS SEND is indicated under the AIS state. 13


14

Press the “6” key and “Enter” key, then, following item is displayed,

6. Main channel usage 1-16 (1:used 2:used 5:not used 6:not used 9:not used 10:not used 13:not used 14:not used

3:N/A 7:not used 11:not used 15:not used

4:not 8:not 12:not 16:not

used used used used)

Select channel No. :

3-35

OPERATION

ROI-S04488

Procedure

Step

Notes: Set to “on” for the following channels. 1. Restricted E1 channels by hardware, which are indicated by “#”on the Setting display. 2. E1 channels which are not available to use when 10/ 100BASE-T(X) LAN is assigned. (see Table 3-3 Applicable Traffic Channel) 3. Reserved E1 channels. 15

Enter the channel No. and press the “Enter” key to change the setting, following channel setting is displayed,

6. Main channel usage 1-16 (1:used 2:used 5:not used 6:not used 9:not used 10:not used 13:not used 14:not used

3:N/A 7:not used 11:not used 15:not used

4:not 8:not 12:not 16:not

used used used used)

Select channel No. : channel 1 (used:0 / not used:1) :

16


17

Press the “6” key and “Enter” key, repeat step 14 to step 16 for each channel setting,

18

If not, press the “7” key and “Enter” key, then, following item is displayed,

7.

BER alarm threshold (10-4)

‫ ∠ޓ‬10-6:3):

BER alarm threshold (10-3:0 ∠ 10-4:1 ∠ 10-5:2

Notes: 10-3 signifies 3 x 10-3. Default value is a 10-4. 19

3-36

Press the any “0” to “3” key and “Enter” key for setting, if not, press the “Esc” key,

OPERATION

ROI-S04488

Step

20

8.

Procedure

Press the “8” key and “Enter” key, then, following item is displayed, Frame ID (0)

Input ID No. (0-7) :

21

Press the desired frame ID number and “Enter” key for setting, if not, press the “Esc” key, Note: The frame ID number must be set to the same number as that on the MAIN BOARD at the opposite station as follows (factory setting status): • 2 x 2MB/4 x 2 MB : 0 • 8 x 2MB : 1 • 16 x 2MB : 2

22

9.

Press the “9” key and “Enter” key, then, following item is displayed, WS channel usage (not used)

WS channel usage (used:0 / not used:1):

Note: When the WS INTFC (optional) module is provided in the 16 x 2MB system, WS alarm INH is set to used. 23

Press either “0” or “1” key and the “Enter” key for setting, if not, press the “Esc” key,

24

Enter 10 and “Enter” key, then, following item is displayed,

10. DSC 1 (232) DSC 1 (232:0 / 64k:1):

25

Press the either “0” or “1” key and “Enter” key for setting, if not, press the “Esc” key, Note: 232 — RS-232C provides standard 64k — 64 kbps is applicable when optional 64K INTFC is provided.

3-37

OPERATION

ROI-S04488

Procedure

Step

26

Enter 11 and the “Enter” key, then, following item is displayed,

11. DSC 2 (232) DSC 2 (232:0 / 422:1 / 485(TERM):2 / 485(NON TERM):3):

27

Press any “0” to “3” key and “Enter” key for setting, if not, press the “Esc” key, Note: 232 — RS-232C provides standard, 422 — RS-422 is applicable when optional DSC INTFC is provided, 485 (TERM)— RS-485 (Terminating) is applicable when optional ASC INTFC is provided, 485 (NON TERM)— RS-485 (Non-Terminating) is applicable when optional ASC INTFC is provided.

28

Enter 12 and press the “Enter” key, then, following item is displayed,

12. DEM invert (off) DEM Invert (off:0 / on:1)

:

29

Press the “0” or “1” key and “Enter” key for setting, if not, press the “Esc” key,

30

Enter 13 and press the “Enter” key, then, following item is displayed, Note: The following display is for initial values. When the resetting of item is required, perform steps 31 to 35 for corresponding item.

3-38

OPERATION

ROI-S04488

Step

Procedure

For 1+0 System 13. Alarm table 1/2 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.

INPUT LOSS AIS RCVD AIS SEND OUTPUT LOSS LAN INTFC ALM WS INPUT LOSS WS AIS RCVD WS AIS SEND WS OUTPUT LOSS TX CLK LOSS FSYNC ALM HIGH BER ALM LOW BER ALM BER ALM

Form C1 OUT    OUT     OUT    

Form C2    OUT OUT    OUT  OUT   OUT

Form C3            OUT  OUT

Form C4              

Press any key to continue…

31

Press the “Enter” key, then, following Alarm table 2/2 appears,

13. Alarm table 2/2 15. 16. 17. 18. 19. 20. 21. 22. 23.

MOD ALM DEM ALM OPR ALM TX PWR ALM RX LEV ALM APC1 ALM APC2 ALM IF INPUT ALM MAINT

Form C1 OUT  OUT OUT  OUT OUT OUT MASK

Form C2  OUT OUT  OUT OUT OUT  MASK

Form C3         MASK

Form C4         OUT

Select item No. (1-23,0:no change):

Notes: 1. Alarm table displayed on the LCT depends on system configuration. 2. Alarms signals C1 to C4 will appear on the ALM/AUX ALM terminals. C1: 1, 2 and 3 pins C2: 4, 5 and 6 pins C3: 7, 8 and 9 pins C4: 10, 11 and 12 pins

3-39

OPERATION

ROI-S04488

Procedure

Step

3. The items which are applied alarm output are indicated with “OUT” and not applied alarm output are indicated with “–”. 4. Selecting item No. changes depending on the mounted modules. 5. The outputs which are shut off the signal output in maintenance conditions are indicated with "MASK". For 1+1 System 12. Alarm table 1/3 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.

INPUT LOSS AIS RCVD AIS SEND OUTPUT LOSS LAN INTFC ALM WS INPUT LOSS WS AIS RCVD WS AIS SEND WS OUTPUT LOSS TX CLK LOSS 1 TX CLK LOSS 2 RX CLK LOSS 1 RX CLK LOSS 2

C1 OUT    OUT     OUT   

C2 OUT    OUT      OUT  

C3    OUT OUT    OUT   OUT 

C4    OUT OUT    OUT    OUT

C5             

C6             

C2          OUT    OUT

C3 OUT  OUT    OUT    OUT  OUT 

C4  OUT  OUT    OUT    OUT  OUT

C5       OUT OUT      

C6              


12. Alarm table 2/3 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27.

FSYNC ALM 1 FSYNC ALM 2 HIGH BER ALM 1 HIGH BER ALM 2 LOW BER ALM 1 LOW BER ALM 2 BER ALM 1 BER ALM 2 MOD ALM 1 MOD ALM 2 DEM ALM 1 DEM ALM 2 OPR ALM 1 OPR ALM 2

C1         OUT    OUT 


3-40

OPERATION

ROI-S04488

Step

Procedure

12. Alarm table 3/3 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44.

TX PWR ALM 1 TX PWR ALM 2 RX LEV ALM 1 RX LEV ALM 2 APC1 ALM 1 APC1 ALM 2 APC2 ALM 1 APC2 ALM 2 IF INPUT ALM 1 IF INPUT ALM 2 MAINT TX SEL 1 TX SEL 2 RX SEL 1 RX SEL 2 MDP U ALM 1 MDP U ALM 2

C1 OUT    OUT    OUT  MASK     OUT 

C2  OUT    OUT    OUT MASK      OUT

C3   OUT    OUT    MASK     OUT 

C4    OUT    OUT   MASK      OUT

C5           MASK      

C6           OUT      

Select item No. (1-44, 0:no change):

Notes: 1. Alarm table displayed on the LCT depends on system configuration. 2. Alarms signals C1 to C6 will appear on the ALM/AUX ALM terminals. C1: 1, 2 and 3 pins C2: 4, 5 and 6 pins C3: 7, 8 and 9 pins C4: 10, 11 and 12 pins C5: 20, 21 and 22 pins C6: 23, 24 and 25 pins 3. Indications “OUT” and “–” mean that the alarm is “outputted” or “not outputted”, respectively. 4. Indication “MASK” means that if this “MASK” is pressed, the alarm usually issued when the equipment had been set to maintenance mode can be disabled. 5 Selecting item No. changes depending on the mounted modules. 32

Enter item No. and press the “Enter” key for setting, if not, press the “0” key and “Enter” key to go back to the Setting menu,

3-41

OPERATION

ROI-S04488

Procedure

Step

33

When press the “1” key and “Enter” key in previous step 32, following Form setting for Item No.1 is displayed, For 1+0 System

Select item No. (1-23,0:no change):1 1.

INPUT LOSS

Form C1 OUT

Select Form C No. (1-4)

Form C2 

Form C3 

Form C4 

:

For 1+1 system Select item No.(1-43, 0:no change) :1 1.

C1 OUT

INPUT LOSS

C2 OUT

Select Form C No. (1-6)

C3 

C4 

C5 

C6 

:

34

Press any “1” to “4” (or “1” to “6” for 1+1) key for corresponding Form No. and “Enter” key,

35

When the “1” key and “Enter” key is pressed in previous step 34, following confirmation is displayed, For 1+0 System

Select Form C No. (1-4) 1.

INPUT LOSS

:1

Form C1 OUT

Form C2 

Form C3 

Form C4 

Form C1 (output-no:0 / yes:1):

For 1+1 System Select Form C No.(1-6) 1.

INPUT LOSS

:1 C1 OUT

C2 OUT

Form C1 (output-no:0/yes:1) :

3-42

C3 

C4 

C5 

C6 

OPERATION

ROI-S04488

Step

Procedure

36

Press the “1” key and “Enter” key for setting, or press the “0” key and “Enter” key for cancel,

37

When pressed the “0” key and “Enter” key in previous step 36, following setting for other Form is displayed, For 1+0 System

Form C1 (output-no:0/yes:1) :0 1.

INPUT LOSS

Form C1 

Form C2 

Form C3 

Form C4 

Other Form C select? (no:0 / Form C No.:1-4) :

For 1+1 System Form C1 (output-no:0/yes:1) :0 1.

INPUT LOSS

C1 

C2 

C3 

C4 

C5 

C6 

Other Form C select? (no:0/Form C No.:1-6) :

38

Press any “1” to “4” (or “1” to “6” for 1+1) key for corresponding Form No. and “Enter” key for setting, or “0” key and “Enter” key for cancel, For 1+0 System

Other Form C select? (no:0 / Form C No.:1-4)

:0

Other item select? (no:0 / item No.:1-23) :

For 1+1 System Other Form C select? (no:0/Form C No.:1-6)

:0

Other item select? (no:0/item No.:1-44) :

39

Press the “2” key and “Enter” key. Repeat steps 31 to 38 for items of 2 to 23 (or 2 to 44 for 1+1) in step 30 for alarm setting, if not, press the “0” key and “Enter” key for cancel,

40

Press the “Esc” key, to go back to Setting menu,

3-43

OPERATION

ROI-S04488

3.4.2 Alarm and Status Monitoring of IDU and ODU Alarm conditions are identified by the IDU indicator on the IDU. Also the working conditions of the IDU and ODU can be monitored by the PC, as follows: Step

Procedure

1

Connect the personal computer (PC) to the LA PORT of the IDU using an RS-232C cable as shown in Fig. 3-7,

2


3


4


5

:

Press the “0” key and “Enter” key,

:******** Change ? (no:0 / yes:1) :

6 1. 2. 3. 99.

Following menu items are displayed, Setting Maintenance Monitoring Exit


7

Press the “3” key and “Enter” key, then, following menu is displayed, For 1+0 System

Monitoring 1. Monitoring voltage 2. Monitoring voltage (continuance mode) 3. Alarm/Status 4. Inventory 00. Menu 99. Exit Select item No. :

3-50

OPERATION

ROI-S04488

Step

Procedure

For 1+1 System Monitoring 1. Monitoring voltage 2. Alarm/Status 3. Inventory 00. Menu 99. Exit Select item No. :

Alarm and Status 8

Press the “3” for 1+0 (or “2” for 1+1) key and “Enter” key, then, following alarm items are displayed, For 1+0 System

3.

Monitoring of alarm/status 1/2 IDU INPUT LOSS 1-16 (alarm:**** CHANNEL USAGE ERROR 1-16 (alarm:**** AIS RCVD 1-16 (alarm:---AIS SEND 1-16 (alarm:**** OUTPUT LOSS 1-16 (alarm:---LAN INTFC ALM (alarm:-) WS INPUT LOSS (alarm:-) WS CHANNEL USAGE ERROR (alarm:-) WS AIS RCVD (alarm:-) WS AIS SEND (alarm:-) WS OUTPUT LOSS (alarm:-) TX CLK LOSS (alarm:-) FSYNC ALM (alarm:*) HIGH BER ALM (alarm:*) LOW BER ALM (alarm:*) BER ALM (alarm:*)

----------------

----------------

----) ----) ----) ----) ----)

Press any key to continue …

Notes:

1. “*” : indicates alarm condition. 2. “–” : indicates normal condition. 3. Monitoring of alarm/status displayed on the LCT depend on system configuration. 4. CHANNEL USAGE ERROR 1-16 is displayed only when “Channel usage error (report)” is selected to “report” and Main channel usage is set to used. 5. WS CHANNEL USAGE ERROR is not displayed when “Channel usage error (report)” is selected to “not report” .

3-51

OPERATION

ROI-S04488

Procedure

Step 3.

Monitoring of alarm/status 2/2 MOD ALM (alarm:-) DEM ALM (alarm:*) OPR ALM (alarm:*) ODU TX PWR ALM RX LEV ALM APC1 ALM APC2 ALM IF INPUT ALM MUTE TX/RX FREQ CH

(alarm:-) (alarm:-) (alarm:-) (alarm:-) (alarm:-) (off) (5ch)


Notes:

1. “*” : indicates alarm condition. 2. “–” : indicates normal condition. 3. “5ch” : RF channel number is displayed.

For 1+1 System 2. Monitoring of alarm/status 1/2 IDU INPUT LOSS 1-16 (alarm:---CHANNEL USAGE ERROR 1-16 (alarm:**** AIS RCVD 1-16 (alarm:---AIS SEND 1-16 (alarm:---OUTPUT LOSS 1-16 (alarm:---LAN INTFC ALM (alarm:-) WS INPUT LOSS (alarm:-) WS CHANNEL USAGE ERROR (alarm:-) WS AIS RCVD (alarm:-) WS AIS SEND (alarm:-) WS OUTPUT LOSS (alarm:-) TX CLK LOSS(No.1/No.2) (alarm:-/-) RX CLK LOSS(No.1/No.2) (alarm:-/-) FSYNC ALM(No.1/No.2) (alarm:-/-) HIGH BER ALM(No.1/No.2) (alarm:-/-) LOW BER ALM(No.1/No.2) (alarm:-/-) BER ALM(No.1/No.2) (alarm:-/-) Press any key to continue …

3-52

----------------

----------------

****) ----) ----) ----) ----)

OPERATION

ROI-S04488

Step

Procedure

Notes: 1. “∗” : indicates alarm condition. 2. “−” : indicates normal condition. 3. Monitoring of alarm/status displayed on the LCT depend on system configuration. 4. CHANNEL USAGE ERROR 1-16 is displayed only when “Channel usage error (report)” is selected to “report” and Main channel usage is set to used. 5. WS CHANNEL USAGE ERROR is not displayed when “Channel usage error (report)” is selected to “not report” . 2.

Monitoring of alarm/status 2/2 MOD ALM(No.1/No.2) (alarm:-/-) DEM ALM(No.1/No.2) (alarm:-/*) OPR ALM(No.1/No.2) (alarm:-/*) MDP U ALM(No.1/No.2) (alarm:-/*) ODU TX PWR ALM(No.1/No.2) (alarm:-/-) RX LEV ALM(No.1/No.2) (alarm:-/-) APC1 ALM(No.1/No.2) (alarm:-/-) APC2 ALM(No.1/No.2) (alarm:-/-) IF INPUT ALM(No.1/No.2) (alarm:-/-) MUTE No.1(off) MUTE No.2(on) TX/RX FREQ CH (5 ch)


Notes: 1. 2. 3. 4.

“∗” indication indicates alarm condition. “−” indication indicates normal condition. “0 ch” indication shows setting channel number. Monitoring of alarm/status displayed on the LCT depend on system configuration. 5. The LCT display shows Hot standby system. In Twin path system, it is displayed as follows: TX/RX FREQ. CH No.1 (0 ch) TX/RX FREQ. CH No.2 (0 ch)

9

Press the “Esc” key to go back to the Monitoring menu,

3-53

OPERATION

ROI-S04488

Procedure

Step

For 1+0 System Monitoring 1. Monitoring voltage 2. Monitoring voltage (continuance mode) 3. Alarm/Status 4. Inventory 00. Menu 99. Exit Select item No. :


10

Press “4” key (or “4” key for 1+1) and “Enter” key, then, following item is displayed, For 1+0 System

4.

Inventory 1/2 IDU Serial number Manufactured date Software version (ROM/RAM) Bit rate Option module

123456 MAY/2003 1.20/2.22 16 x 2MB PM CARD LAN INTFC WS INTFC 64K INTFC(G.703) 64K INTFC(V11) ASC INTFC DSC INTFC ALM INTFC SC LAN INTFC


Note:

3-54

Only actually mounted modules may be indicated as optional module.

OPERATION

ROI-S04488

Step 4.

Procedure Inventory 2/2 ODU Manufactured data Software version (ROM) Bit rate RF band Sub band Shift freq CH separation

JAN/2003 2.1 17/34MB 23GHz Low A 1200 MHz 2.50 MHz

For 1+1 System 3.Inventory 1/4 IDU SW UNIT Serial number Manufactured date Software version (ROM/RAM) Bit rate Option

123456 OCT/2002 1.20/2.14 2/4/8/16 x 2MB PM CARD LAN INTFC WS INTFC 64k INTFC(G.703) 64k INTFC(V.11) ASC INTFC DSC INTFC ALM INTFC SC LAN CARD


Note: Only actually mounted modules may be indicated as optional module. 3.Inventory 2/4 IDU No.1 MD UNIT Serial number Manufactured date Software version(ROM/RAM)

123456 SEP/2002 1.20/2.22

No.2 MD UNIT Serial number Manufactured date Software version(ROM/RAM)

123457 SEP/2002 1.20/2.22


3-55

OPERATION

ROI-S04488

Procedure

Step

3.Inventory 3/4 ODU No.1 ODU Manufactured date Software version (ROM) Bit rate RF band Sub band Shift freq CH separation

JAN/2003 2.1 17/34MB 23GHz High A 1200MHz 2.50MHz


3.Inventory 4/4 ODU No.2 ODU Manufactured date Software version (ROM) Bit rate RF band Sub band Shift freq CH separation

SEP/2002 2.1 17/34MB 23GHz High A 1200MHz 2.50MHz

Press any key

11

Press the “Esc” key to go back to the Monitoring menu, then, enter 99 to exit the monitoring of the Pasolink.

Monitoring 1. Monitoring voltage 2. Monitoring voltage (continuance mode) 3. Alarm/Status 4. Inventory 00. Menu 99. Exit Select item No. :

3-56

OPERATION

ROI-S04488

3.4.3 Monitoring the ODU The following items of the ODU can be monitored on the PC. • Transmitter output power • Received signal level The procedure is as follows: Step

Procedure

1

Connect the personal computer (PC) to the LA PORT of the IDU using an RS-232C cable as shown in Fig. 3-7,

2


3


4


5

:

Press the “0” key and “Enter” key,

:******** Change ? (no:0 / yes:1) :

6 1. 2. 3. 99.

Following menu items are displayed, Setting Maintenance Monitoring Exit


3-57

OPERATION

ROI-S04488

Procedure

Step

7

Press the “3” key and “Enter” key, then, following menu is displayed, For 1+0 System

Monitoring 1. Monitoring voltage 2. Monitoring voltage (Continuance mode) 3. Alarm/Status 4. Inventory 00. Menu 99. Exit Select item No. :


8

Press the “1” key and “Enter” key, then, following item is displayed, Note: The voltages shall be indicated within the values shown in Table 3-4 in normal, For 1+0 System

1. Monitoring voltage Transmitter power Receiving level

: 4.33V (-1 dB) : 3.55V (-32 dBm)

For 1+1 System 1.

3-58

Monitoring voltage Transmitter power 1 Receiving level 1 Transmitter power 2 Receiving level 2

: : : :

4.33V 2.98V 4.33V 2.18V

(-1 dB) (-46 dBm) (-1 dB) (-66 dBm)

OPERATION

ROI-S04488

Step

9

Procedure

Press the “Esc” key to go back to the Monitoring menu, then, enter 99 to exit the monitoring of the Pasolink. For 1+0 System

Monitoring 1. Monitoring voltage 2. Monitoring voltage (Continuance mode) 3. Alarm/Status 4. Inventory 00. Menu 99. Exit Select item No. :


Table 3-4 Meter Reading of IDU and ODU CHECK ITEM

ALLOWABLE RANGE

Transmitter power

Depends on transmitter power • 0 to 4.6 V DC (Bit rate free type ODU*1) • 0 to 4.6 V DC (Fixed bit rate type 7/8 GHz ODU*2)

Receiving level

Depends on received signal level • 0.8 to 4.4 V DC (Bit rate free type ODU*1) • 0.8 to 4.4V DC (Fixed bit rate type 7/8 GHz ODU*2) Notes:1. *1 The code number of bit rate free type ODUs are as follows: • G2924 • G3359 • G5380 • G5383 • G5384 • G6594 • H0330 • H0331 • H0332 • H0333 • H0334 • H0335 2. *2 The code number of fixed bit rate type 7/8 GHz ODUs are as follows: • G6583 • G6584 • G6585 • G6586 • H0738 • H0739

3-59

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