pasl manual mdp equipment description(english 060308)

8/13/2019 PASL MANUAL MDP Equipment Description(English 060308)

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CONTENTS ROI-S04488

CL-2

TITLE PAGE

2.6 Receive Line Equalization 2-22

2.6.1 Demultiplexing 2-22

2.6.2 Unipolar-to-Bipolar Code Conversion 2-22

2.7 Analog Service Channel Signal Transmission(Optional) 2-23

2.7.1 ASC Transmit Side 2-23

2.7.2 ASC Receive Side 2-23

2.8 9.6 K Digital Service Channel Transmission 2-23

2.8.1 DSC Transmit Side 2-24

2.8.2 DSC Receive Side 2-24

2.9 Alarm Signal Transmission 2-24

2.10 Wayside Signal Transmission (Optional) 2-24

2.10.1 WS Transmit Side 2-24

2.10.2 WS Receive Side 2-24

2.11 64 K Digital Service Channel Transmission 2-25

2.11.1 Service Channel Transmission of G.703Codirectional 2-25

2.11.2 Service Channel Transmission of V.11 2-252.12 LAN Signal Transmission (Optional) 2-26

2.12.1 Transmit Side 2-26

2.12.2 Receive Side 2-26

2.13 Alarm and Control Functions 2-27

3 OPERATION 3-1

3.1 Interface Terminals and Jacks 3-1

3.2 Controls, Indicators and Test Jacks 3-29

3.2.1 75 ohms/120 ohms Impedance Switch 3-34

3.3 Equipment Start-up and Shut-down 3-373.3.1 Start-up 3-37

3.3.2 Shut-down 3-38

3.4 Equipment Setting and Monitoring 3-39

3.4.1 Setting Procedure from LCT 3-40

3.4.2 Alarm/Status Monitoring Procedure from LCT 3-62

3.4.3 Monitoring Voltage of the ODU 3-70


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ROI-S04488 CONTENTS

CL-3

TITLE PAGE

4 MAINTENANCE 4-1

4.1 Precautions 4-1

4.2 Maintenance Control from LCT 4-3

4.3 Test Equipment and Accessories 4-12

4.4 Periodic Maintenance 4-12

4.5 Corrective Maintenance 4-13

4.5.1 Fault Isolation Flow Chart 4-13

4.5.2 Replacement 4-19

4.5.3 Alignment 4-23
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CONTENTS ROI-S04488

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ROI-S04488 GENERAL

1-1

1. GENERAL

This section provides information on the equipment composition andequipment performance of the MDP-( )MB-( ) Modulator-Demodulator(Indoor Unit (IDU)) equipment. This manual is applied to the F/W version2.xx.

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 BASE-T(X))

Free bit rate type (for 2/4/8/16 2MB and optional 2 10/100BASE-T(X) )

Front view of the IDUs are shown in Fig. 1-1, Fig. 1-2 (1/2) and Fig. 1-2(2/2).


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ROI-S04488 GENERAL

1-5

1.1 Equipment Composition

The equipment composition is shown in Fig. 1-3 and Fig. 1-4.

Fig. 1-3 Component Module Arrangement for the IDU in 1+0 System (1/2)

TOP LAYER

BOTTOM LAYER

1 4

3

9

5

6

10

2

78

Note: The module 8 can not be mounted if module 5 and/or 7 aremounted.


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GENERAL ROI-S04488

1-6

Note: : Mounted : Optional

: Not applicable *1 : H0091A/J/L/M MDP-8MB-12A H0091N MDP-17MB-3A H0091F/H/K/P MDP-34MB-25C


No. MODULE NAME

MDP-[ ]MB-[ ] (IDU) *1

REMARKSH0091

H0091A/J4x2MB

H0091L4x2MB

H0091M4x2MB

H0091N2/4/8x2MB

H0091F/H/K2/4/8/16x2MB

H0091P2/4/8/16x2MB

1

H0092A/M/WMAIN BOARD H0092D/N/X MAIN BOARD H2003A MAIN BOARD H2003B MAIN BOARD H2003D MAIN BOARD

2

H0093A FRONT BOARD1 H0093G FRONT BOARD1 H2004A FRONT BOARD1

75 ohms BNCH2004B FRONT BOARD1 75 ohms BNC

3H0095A FRONT BOARD2 75/120 ohmsH0095D FRONT BOARD2 75/120 ohms

4 X0581A/B DC-DC CONV

5

H0174A ASC INTFC VF x 2 CHH0175A DSC INTFC RS232/RS422 x 2 CHH0176A ALM INTFC Cluster ALM x 2CH

6H0172A 64K INTFC G.703

H0173A 64K INTFC V11

7 H0171A WS INTFC 2 MB x 1CH8 H0177A SC LAN INTFC 2 M/80Kbps

9 H0098B LAN INTFC 10/100BASE-T(X) x2CH

10G5440B/F/G PM CARD Serial

G8896B PM CARD Ether


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ROI-S04488 GENERAL

1-7


SW UNIT (U1)

MD Unit (U2/U3)

1

2

9

107

8

Note: The module 12 can not be mounted if module 8 and/or 9are mounted.

3

4

5611

U2 (MD Unit)

U3 (MD Unit)

U1 (SW Unit)

IDU

12


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GENERAL ROI-S04488

1-8




No. UNIT/MODULE NAME

MDP-[ ]MB-[ ] (IDU) *1

REMARKSH0161

H0161A/J 4x2MB

H0161L4x2MB

H0161M4x2MB

H0161N2/4/8x2MB

H0161F/H/K 2/4/8/16x2MB

H0161P 2/4/8/16x2MB

U1

H0164A/D SW UNIT H0164C/E SW UNIT H0164F SW UNIT H0164G SW UNIT 75 ohms BNCH0164H SW UNIT 75 ohms BNCH0164J SW UNIT

U2

H0163A/E/G MD UNIT H0163D/H MD UNIT H0163J MD UNIT H0163K MD UNIT H0163L MD UNIT

U3

H0163A/E/G MD UNIT H0163D/H MD UNIT H0163J MD UNIT H0163K MD UNIT H0163L MD UNIT

1

H0092H/P/U MAIN BOARD H0092K/R/V MAIN BOARD H2003D MAIN BOARD H2003E MAIN BOARD H2003F MAIN BOARD

2 H0093B FRONT BOARD1

3 X0581A/B DC-DC CONV

4

H0094B/H SW BOARD H0094D/J SW BOARD H2005A SW BOARD H2005B SW BOARD H2005C SW BOARD


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ROI-S04488 GENERAL

1-9




No. UNIT/MODULE NAME

MDP-[ ]MB-[ ] (IDU) *1

REMARKSH0161

H0161A/J 4x2MB

H0161L4x2MB

H0161M4x2MB

H0161N2/4/8x2MB

H0161F/H/K 2/4/8/16x2MB

H0161P 2/4/8/16x2MB

5

H0093C FRONT BOARD1 H0093H FRONT BOARD1 H2004C FRONT BOARD1 75 ohms BNCH2004D FRONT BOARD1 75 ohms BNC

6H0095A FRONT BOARD2 75/120 ohms

H0095D FRONT BOARD2 75/120 ohms

7H0172A 64K INTFC G.703

H0173A 64K INTFC V11

8 H0171A WS INTFC 2 MB x 1CH

9

H0174A ASC INTFC VF x 2 CH

H0175A DSC INTFC RS232/RS422x 2 CH

H0176A ALM INTFC Cluster ALMx 2CH

10 H0098B LAN INTFC 10/100BASE-T(X)x 2CH

11G5440B/F/G PM CARD Serial

G8896B PM CARD Ether

12 H0177A SC LAN INTFC 2 M/80Kbps


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GENERAL ROI-S04488

1-10

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 x 2 MB/4 x 2 MB/8 x2 MB/ 16 x 2 MB system)

Level: Meets specification of ITU-T G.703.

Code format: High Density Bipolar-3 (HDB-3)

Impedance: 120 ohms, balanced or 75 ohms, unbalancedModulation 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 = 300m)

Impedance: 50 ohms, unbalanced

Orderwire frequency

Output: 450 kHz, amplitude modulation (AM)

Input: 468 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)Analog service channel (ASC) signal interface (optional)

Frequency: 0.3 to 3.4 kHz

Impedance: 600 ohms, balanced


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ROI-S04488 GENERAL

1-11

Digital service channel (DSC) signal interface

Bit rate: 9.6 kbps (asynchronous) 64 kbps (G.703/V.11) (optional)

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

Note: Depending on combination of optional module, both ASC and DSC cannot be used simultaneously.

Way Side (WS) signal interface (optional in 16 x 2 MB system)

Bit rate: 2.048 Mbps

Interface: HDB-3 (ITU-T G.703)

Impedance: 75 ohms or 120 ohms (selectable)

Local Area Network (LAN) signal interface (optional)

Standards Compliance IEEE 802.3 (10 BASE-T), IEEE 802.3u (100 BASE-TX),IEEE 802.3x (Flow control)

Network Port 10 Mbps/100 Mbps andFull/Half duplex Auto negotiation or Fixed

Total Port 2 (Each port is separated)

Flow Control 802.3x (Full Duplex), Back pressure (Half Duplex)Forwarding Mode Store-and -Forward

Transmission Length Category 5, Max. 100 m

Transmission Rate (Port 1 and Port 2)

2 Mbps to 32 Mbps (selectable, depends on the system)

House Keeping Alarm Input/Output (optional)

Output (Form-C): Rated Current 0.2 A Maximum Voltage 100 V (AC+DC)

Input (Photo coupler): Open > 200 kohms

Closed < 50 ohmsService channel (SC) Local Area Network (LAN) signal interface (optional)

Standards Compliance IEEE 802.3 (10 BASE-T)

Network Port 10 Mbps Half duplex Fixed

Total Port 1

Forwarding Mode Store-and -Forward

Transmission Length Category 5, Max. 100 m

Transmission Rate 80Kbps (in 2/4/8 x 2 MB) or 2Mbps(in 16 x 2 MB)

Table 1-1 Performance Characteristics of IDU (Contd)


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GENERAL ROI-S04488

1-1212 pages

Dimensions: 482 wide x 44 high x 240 deep (mm) for 1+0 482 wide x 132 high x 240 deep (mm) for 1+1

Weight: Approx. 4 kg (including all options) for 1+0 Approx. 11 kg (including all options) for 1+1

Relative Humidity: Less than 90% at +50C (Non-condensing)

Environmental temperature range

Operation: 5C to +50C

Storage: 30C to +70C

Table 1-1 Performance Characteristics of IDU (Contd)


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ROI-S04488 FUNCTIONAL OPERATION

2-1

2. FUNCTIONAL OPERATION

This section describes functional operation of the transmit lineequalization, transmit digital processing, modulation, demodulation,receive digital processing, receive line equalization, analog servicechannel signal transmission, 9.6k digital service channel transmission,alarm signal transmission, wayside signal transmission, 64k digital servicechannel transmission, LAN signal transmission, and alarm and control inthat 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 2-

1 and Fig 2-2 Functional Block Diagram.


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FUNCTIONAL OPERATION ROI-S04488

2-2



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ROI-S04488

Fig. 2-1 Fun ctio nal Block Diagram of IDU (1/3)

CH1 IN

CH2 IN

CH1 OUT

CH2 OUT

4 x 2 MBSYSTEM

8 x 2 MBSYSTEM

16 x 2 MBSYSTEM

TRANS

TRANS

TRANS

TRANS

PLS

B-U

AIS

U-B

LOOPBACK

CONV

CONV

MON DETCKT

LOOPBACKCKT

AIS CTRL

AIS CTRL

PLS MONOUTPUT LOSS 1-2

PLS AISMON DET

CH3 IN

CH4 IN

CH3 OUT

CH4 OUT

TRANS

TRANS

TRANS

TRANS

B-U

U-B

CONV

CONV

PLS MON

AIS CTRL

AIS CTRL

LOOPBACKCKT

LOOPBACKCKT

1/8

MEM

MEM

MEM

MEM

MEM

MEM

MEM

MEM

MUX

DEMUX

FE LB CTRL 1-4

FE LB ANS 1-4

P-S CONV

TX CLK LOSS

RX CLK LOSS

S-P CONV

CLK MON

CLK MON

OUTPUT LOSS 1-2OUTPUT LOSS 3-4

AIS RCVD 3-4INPUT LOSS 3-4FE LB CTRL 1-4

FE LB ANS 1-4NE LB ANS 1-4

AIS RCVD 1-2INPUT LOSS 1-2 P-S

CONV

S-PCONV

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

CH5 INCH6 INCH5 OUTCH6 OUTCH7 INCH8 INCH7 OUTCH8 OUT



(CH13 - CH16)

(CH5 - CH8)

(SAME AS ABOVE)

(CH9 - CH12)

(SAME AS ABOVE)

INPUT LOSS 1-2

AIS RCVD 1-2

INPUT LOSS 3-4

AIS RCVD 3-4

INTFC (CH1 - CH4)

TIM GEN

2 x 2 MBSYSTEM


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ROI-S04488

Fig. 2-1 Fun ctio nal Block Diagram of IDU (2/3)

ASC/DSC/ALM INTFC

abcdef gh

P-SCONV

PLS MON

MUX

SCRB

PARITY

CHECK

TIMGEN

PCMCODEC

H

DIFENC

DIGFIL

PLSMON

MSTCLKMON

EOWOUT

EOW IN

EOW

D-ACONV

D-A

CONV

4PHMOD

M

D

ED

EM

VCO450 kHz

MUX ALM 1-4

MOD CW

L BER ALM

H BER ALM

F SYNC ALM

BER ALM

BER THRESHOLD

FRAME ID

q

s

SERIAL ALM

F SYNC ALM

r SERIAL DATA

Ethernet SWSPEED CONV

LAN INTFC*

PORT1

PORT2

vRX FPLS

t

u

16M CLK

RX CLK

i jkl

mnop

S-PCONV DEMUX

TIMGEN

DSCRB

BERDET

F SYNC

DIFDEC

IN

OUT

OUT

INDSC/64K/

A-D CONV/LEV CONV

B-U CONVU-B CONV

64K/SC LAN INTFC*

A-DCONV

70 MHz

DEM

4 PHDEM

A-DCONV

From/ToFIG. 2-1 (1/3)

DPU

MOD

43 V DC

INTERFACE

TX FPLSwx TX CLK

VCO

AIS CTRL OFF

AIS CTRLy

TERMINAL

Note: * O

10BASE-T/100BASE-TX

z

WSIN/OUT(RJ45)

INTERFACETERMINAL

B-U CONVU-B CONV

WS/SC LAN INTFC*

ASC/EOW

OW/DSC/ASC


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ROI-S04488

Fig. 2-1 Functi onal Blo ck Diagram of IDU in 1+0 System (3/3)


D

I

F

H

E

G

A

B

C

TX DPU ALM

BER ALM

F SYNC ALM

MOD ALM

DPU SERIAL

DPU SERIAL

DATA UP

DATA DOWNCPU

S-PCONV

S-PCONV

S-PCONV

TX PWR ALMRX LEV ALM

APC 1 ALM

APC 2 ALM

IF INPUT ALM

INPUT LOSS 1-16

TX CLK LOSSRX CLK LOSSOUTPUT LOSS 1-16DEM ALM

H BER ALM

FE LB CTRL 1-16

MOD CW

NE LB CTRL 1-16

AIS CTRL 1-16

CPU ALM

CPU RESET

CPU

LA PORT

NMS/RA

Notes: 1. *Optional.

2. Four relay contacts 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 alarmsignals.

CPU CLK

PM CARD*

PHOTOCOUPLERs

RELAYs

INTERFACETERMINAL

HOUSEKEEPINGOUTPUT

HOUSEKEEPINGINPUT

INTERFACETERMINAL


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ROI-S04488


CH1 IN

CH2 IN

CH1 OUT

CH2 OUT

4 2 MBSYSTEM

8 2 MBSYSTEM

16 2 MBSYSTEM

PLS

B-U

AIS

U-B

LOOPBACK

CONV

CONV

MON DETCKT

LOOPBACKCKT

AIS CTRL

AIS CTRL

PLS MONOUTPUT LOSS 1-2

PLS AISMON DET

CH3 IN

CH4 IN

CH3 OUT

CH4 OUT

B-U

U-B

CONV

CONV

PLS MON

AIS CTRL

AIS CTRL

LOOPBACKCKT

LOOPBACKCKT

1/8

MEM

MEM

MEM

MEM

MEM

MEM

MEM

MEM

MUX

DEMUX

FE LB CTRL 1-4

FE LB ANS 1-4

P-S CONV

TX CLK LOSS

RX CLK LOSS

S-P CONV

CLK MON

CLK MON

OUTPUT LOSS 1-2OUTPUT LOSS 3-4

AIS RCVD 3-4INPUT LOSS 3-4FE LB CTRL 1-4

FE LB ANS 1-4NE LB ANS 1-4

AIS RCVD 1-2INPUT LOSS 1-2 P-S

CONV

S-PCONV

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




(SAME AS ABOVE)

INTFC SECTION (CH13 - CH16)

(SAME AS ABOVE)


(SAME AS ABOVE)


INTFC SECTION (CH1 - CH4)INPUT LOSS 1-2 AIS RCVD 1-2

INPUT LOSS 3-4

AIS RCVD 3-4

2 2 MBSYSTEM


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ROI-S04488


D-ACONV 4 PH

MODD-A

CONV

DIGFIL

DIFENC

SCRB

PARITYCHECK

MUX

PLSMON

MSTCLK

MON

TIMGEN

P-SCONV

PLS MONTX FPLSTX CLK

g

s

y

SERIAL ALM

F SYNC ALM

AIS CTRL


S-PCONV

A-DCONV

A-DCONV

BERDET

F SYNC

DIFDECDSCRB

TIMGEN

DEMUX

RX FPLS12M CLKRX CLK

No. 2 MD UNIT

(SAME AS ABOVE)

2 1

CLK MON

RXSW

H

H

H

H

H

H

H

H

h

g

f

e

d

c

b

a

x

w

H

H

SW

RXSW

ETHERNET SW

SPEED CONVPORT2

PORT110 BASE-T100 BASE-TX

EOWIN/OUT

LAN INTFC *

p

o

n

m

l

k

j

i

u

t

v

RX SW/HL SW

RXSW

To RX SWRX SW CONT6From FIG. 2-2 (4/4)

H ASC/DSC/ALM INTFC *

B-U CONV/DPUU-B CONV/DPU

64K/SC LAN INTFC *H

IN

OUT

OW/DSC/ASC

IN

OUT

DSC/64K/

RX CLK LOSSFrom/To FIG. 2-2 (4/4)

4 3

DPU

No. 1 MD UNITSW UNIT

Note: * Optional.


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


MDP

850 MHzVCO

PCMCODEC

CLK MON

H

WS/SC LAN INTFC *IN

OUT

WS/SC LAN

B-U CONV/DPU

U-B CONV/DPU

SW

ASC/EOW

A-D CONV/LEV CONV

(RJ45)


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ROI-S04488


TX SW CTRLFrom/To FIG. 2-2 (4/4)

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

S/P

5

F

I

INTFC SERIAL

a A

BCD

JBER ALMF SYNC ALM

DATA UP

DATA DOWNCPU CLKTX DPU ALM


FE LB CTRL R 1-4

DPUSERIAL

FE LB ANS R 1-4INPUT LOSS 1-4

AIS RCVD 1-4NE LB ANS 1-4TX IN CLK LOSS

RX IN CLK LOSSOUTPUT LOSS 1-4 AIS SEND 1-4DEM ALML BER ALMH BER ALM

ODUSERIAL

DPUSERIAL

CPU ALM

P/SCONV

CPU

S-PCONV

S-PCONV

TX PWR ALM

RX LEV ALM

APC 1 ALM

APC 2 ALM

IF INPUT ALM

ALM CTRL (No. 1 CH)

INPUT LOSS 1-16

AIS RCVD 1-4

TX IN CLK LOSS

RX IN CLK LOSS

OUTPUT LOSS 1-16

DEM ALM

L BER ALM

H BER ALM

FE LB CTRL 1-16

MOD CWNE LB CTRL 1-16

AIS CTRL 1-16

S-PCONV

P/S CONVRESET

CPU

FE LB CTRL

PM CARD*

S/PCONV

P/SCONV

NE LB CTRL

DEM ALMMOD ALM

DPU SERIAL

HE

b

G

c

TX 1 ALM

RX 1 ALM

To FIG. 2-2 (1/4) r SERIAL DATA

LAPORT

NMS/RA

MAIN BOARD 1 SERIAL

MAIN BOARD 2 SERIAL

d

e

f

TX 2 ALM

From FIG. 2-2 (4/4)



RX 2 ALM


(SAME AS ABOVE)

ALM CTRL (No. 2 CH)

To FIG. 2-2 (4/4)

5

r

PTS

KLMNROQ

TX SW CTRL

INTFC SERIALBER ALMF SYNC ALM

DATA UPDATA DOWNCPU CLKTX DPU ALMDEM ALMMOD ALMDPU SERIAL

SERIAL DATA

INTERFACE TERMINAL

PHOTOCOUPLERs

RELAYs HOUSEKEEPINGOUTPUT

HOUSEKEEPINGINPUT


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ROI-S04488

Fig. 2-2 Functi onal Bloc k Diagram of IDU in 1+1 System (4/4)

MOD 1 ALM

S/P

S/P

S/P

TX CLK LOSS 11

TX SW CTRLTX CLK LOSS 2

RX CLK LOSS 1

RX SW CTRLRX CLK LOSS 2

6

52

3

4

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


TX 1 ALMa

TX 2 ALM

RX 1 ALM

d

b

TX DPU 1 ALMTX PWR 1 ALM

APC 11 ALM APC 12 ALMIF INPUT 1 ALMOPR 1 ALM

MOD 2 ALMTX DPU 2 ALMTX PWR 2 ALM

APC 21 ALM APC 22 ALMIF INPUT 2 ALMOPR 2 ALM

APC 11 ALM APC 12 ALMRX LEV 1 ALMOPR 1 ALMF ASYNC 1 ALMDEM 1 ALMBER 1 ALM

APC 21 ALM APC 22 ALMRX LEV 2 ALMOPR 2 ALMF ASYNC 2 ALMDEM 2 ALM

BER 2 ALM

S/PRX 2 ALM

e


cMAIN BOARD 1 SERIAL

S/P

S/Pf MAIN BOARD 2 SERIAL

TX PWR 1 ALM APC 11 ALM

MUX ALM 1

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

FE LB CTRL 1-4MOD 1 CWNE LB CTRL 1-4

AIS CTRL S 1-4

APC 12 ALMIF INPUT 1 ALMINPUT LOSS 1-4

TX PWR 2 ALM APC 21 ALM

MUX ALM 2

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

FE LB CTRL 1-4MOD 1 CWNE LB CTRL 1-4

AIS CTRL S 1-4

APC 22 ALMIF INPUT 1 ALMINPUT LOSS 1-4

RX SWCTRL LOGIC

TX SWCTRL LOGIC

From FIG. 2-2 (2/4)


ALM CTRL (COMMON)

OPRSEL

No. 1I

AUTOI

No. 2

RL 1

RL 2

RL 3

RL 4

RL 5

RL 6

RL 8

RL 7

MAINT

Notes : 1. Eight relay contacts are outputed from interface terminal (ALM TERMINAL). Plural alarmscan be applied to a single relay. The figure shows the default settings. Refer to paragraph3.4 for changing the settings.

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


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2-17

2.1 Transmit Line Equalization

This section describes the bipolar-to-unipolar code conversion,multiplexing and parallel-to-serial conversion.

2.1.1 Bipolar-to-Unipolar Code Conversion

The signals applied to the TRAFFIC IN terminal are (*) 2.048 Mbps datastreams in a bipolar pulse format of the high density bipolar-3 (HDB-3)code. Each bipolar-coded data stream is converted into an NRZ unipolardata 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 arewritten in to a buffer memory and read out with radio section clock havinga 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 insertedinto 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 DPUcircuit.

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 servicechannel (DSC), WS, LAN data signals and parity check bits are insertedinto the respective locations of the time gap. The multiplexed data streamsare fed to the SCRB circuit.


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2-18

2.2.2 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) or14th (for 2 x 2 MB, 8 x 2 MB and 16 x 2 MB,) pseudo random patterngenerated by the timing generator (TIM GEN) so that the transmissionmark ratio is 1/2. Then the scrambled data stream is sent to the differentialencoder (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 keyingmodulation and orderwire signal modulation.

2.3.1 Differential Encoding

In the 4-phase shift keying modulation system, the demodulator phase maynot 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 theSCRB circuit are represented as an arrangement of Gray-coded binarydigits. The two-bit Gray-coded data streams are then converted into pulsestreams in natural binary code for facilitating differential encoding.

Table 2-1 Binary Combinations

DECIMAL GRAY CODE NATURALBINARY CODE

0 0 0 0 01 0 1 0 1

2 1 1 1 0

3 1 0 1 1


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2-19

Table 2-2 shows typical operation of the differential encoding circuit.

Phases in the natural-binary-coded pulse streams are accumulated inquaternary notation at every time slot. The data streams thus encoded arereconverted into pulse streams in gray code and then sent to a driver.

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

2.3.2 4-Phase Shift Keying Modulation

To permit 4-phase shift keying modulation, the encoded data streams areconverted into two separate two-level baseband signals for the P and Qchannels by the digital-to-analog converter (D-A CONV) on the MODsection according to the logical status (see Fig. 2-3). To limit theassociated transmitter output power spectrum, the voltage spectrum of thetwo-level baseband signal is shaped by each low-pass filter. The filteredsignals are applied to a 4-phase modulator (4PH MOD).

To obtain an 850 MHz IF carriers for 4PH MOD, an 850 MHz carrier isgenerated by the 850 MHz voltage controlled oscillator (VCO), and is splitinto two for the P and Q channels. The 850 MHz carrier for the Q channelis phase-shifted by /2 from the P channel.

The MOD modulates each of the 850 MHz carriers with a related two-level 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 theout-of-band components, amplified up to the required level by anautomatic gain control (AGC) amplifier and sent to the ODU. Then, it iscombined with 450 kHz amplitude-modulated engineering orderwire(EOW) signal and 10 MHz amplitude shift keying (ASK)-modulatedcontrol signal.

Table 2-2 Typical Operation of Differential Encoding Circuit

TIME SLOT 0* 1 2 3 4 5 6 7 8 9 10 11 ...

NATURAL-BINARY-CODEDDATA

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 ...

ENCODEDDATA

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 ...

+ + + + +


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2-20

Fig. 2-3 PSK Modulation

2.3.3 Orderwire Signal Modulation

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

2.4 Demodulation

This section describes the EOW and alarm signal demodulation, mainsignal 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, 468kHz amplitude-modulated EOW signal and 10 MHz ASK-modulatedalarm (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 BPFwhich eliminates the 70 MHz IF signal. The orderwire demodulator (EOWDEM) demodulates the 468 kHz amplitude-modulated EOW signal. Thedemodulated 10 MHz ASK alarm signal is sent to the CPU for further

processing.

P

-L

Q-L +L

+L

/2

3 /2

0

STATUS P CHANNEL Q CHANNEL

1(0) -L -L

2(/2) -L +L

3() +L +L

4(3 /2) +L -L


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2-21

2.4.2 Main Signal Demodulation

The incoming 70 MHz IF signal is amplified up to the required level by anAGC amplifier and split into two separate signals for the P and Q channelsand then fed to the mixer. In addition to the 70 MHz IF signals, twocarriers having a phase difference of /2 produced by the carrier recoverycircuit, which consists of a carrier synchronizer, a 70 MHz oscillator, and acarrier splitter ( /2), are applied to the decision circuit. In the decisioncircuit, each 70 MHz IF signal is coherent-detected with the related carrierto represent the original baseband signal corresponding to the phaseassignment (see Fig. 2-4).

Fig. 2-4 Demodulation

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

2.4.3 Differential Decoding

The process of differential decoding is the reverse of the differentialencoding at the transmitting end. In the natural binary-coded pulsestreams, the phase of the time slot leading one bit before an incoming timeslot is subtracted in quaternary notation from that of the incoming timeslot. The decoded 38.383 Mbps data streams are sent to the framesynchronizer and descramblers on the DPU section of the MAIN BOARDfor receive digital processing.

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

/2

3 /2

0

INPUTPHASE

DETECTED OUTPUT

P CHANNEL Q CHANNEL

0 -1 -1

/2 -1 +1

+1 +1

3/2 +1 -1

CARR 1

CARR 2


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2-22

2.5 Receive Digital Processing

This section describes the frame synchronization, descrambling anddemultiplexing.

2.5.1 Frame Synchronization

FS bits which are multiplexed at the transmitting end are detected andcomparing to establish the frame synchronizer.

2.5.2 Descrambling

To recover original data streams from received data streams, descramblingis 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, ASCand DSC signal bits, etc. from overhead bits with a clock produced at theTIM GEN.

2.6 Receive Line EqualizationThis section describes the demultiplexing and unipolar-to-bipolar codeconversion.

2.6.1 Demultiplexing

From received data streams, the alarm information, AIS RCVD, loopbackcontrol/answer and stuff information bits, etc. are extracted by theDemultiplexer (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 convertedinto 2.048 Mbps data streams in the specified bipolar pulse format (HDB3)

by the U-B CONV circuit on the INTFC section.


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2-23

2.7 Analog Service Channel Signal Transmission (Optional)

An analog service channel (ASC) transmission is performed in the ASCINTFC section, which provides the pulse code modulation codec (PCMCODEC) and PCM decodec (PCM DECOD) circuits. The ASCtransmission is described in accordance with transmission side and receiveside, respectively.

2.7.1 ASC Transmit Side

An analog signal applied to the ASC IN terminal is passed on to PCMCODEC circuit. An analog signal is converted into a 80 kbps (approx.)

digital signal at the PCM CODEC circuit by 10 kHz (approx.) timing pulseand 80 kHz (approx.) clock signal received from the MAIN BOARD. Theconverted 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 isapplied to the PCM DECOD circuit. This 80 kbps (approx.) bps digitalsignal 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 fedto 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 thefollowing section:

TRANSMISSION CHANNEL

DSC 1 and DSC 2 MAIN BOARD


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2-24

2.8.1 DSC Transmit Side

The DSC signal received from DSC IN terminal is applied to levelconverter circuit. Here, the DSC signal is converted into 9.6 K transistor-transistor 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 oppositestation.

2.8.2 DSC Receive Side

The 40 kbps (approx.) extracted from DPU circuit on the MAIN BOARDis 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 tothe 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 INTFCsection.

2.10.1 WS Transmit Side

The 2.048 Mbps bipolar signal applied through the WS IN terminal is fedto the bipolar-unipolar converter (B-U CONV) circuit, where it isconverted into a NRZ unipolar signal. NRZ unipolar signal is code-converted by the HDB-3 decoder. The code-converted 2.048 Mbps WSdata 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. The2.048 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 fedto unipolar-bipolar converter (U-B CONV). The 2.048 Mbps unipolardata signal is converted into the 2.048 Mbps bipolar data stream and fed tothe WS OUT terminal.


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2-25

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 transmissionconforming to V.11. Each transmission scheme corresponds to the type of64K INTFC section.

2.11.1 Service Channel Transmission of G.703 Codirectional

(a) TX SideA 64 kbps bipolar signal is applied to the 64K INTFC section, thenconverted to a unipolar signal by the B-U CONV circuit. Theunipolar signal is then code-converted with a decoder. The code-converted signal is stuff-synchronized with 80 kHz (approx.)clock, then converted into a radio transmission format. Afterconversion, a 80 kbps (approx.) data signal is fed to the MAINBOARD.

(b) RX SideThe 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.) clocksignal from the MAIN BOARD are entered in the synchronizercircuit for the frame synchronization. The frame synchronized datasignal is de-stuffed and converted into 64 kbps data signal. The

resulting 64 kbps data signal is code-converted into G.703 signalwith an encoder circuit, then converted again with the unipolar-

bipolar converter (U-B CONV) circuit into a 64 kbps bipolar datasignal which is transmitted to the output terminal.

2.11.2 Service Channel Transmission of V.11

(a) TX SideThe 64 kbps (approx.) unipolar data signal and the 64 kHz(approx.) clock signal are entered into 64K INTFC section. The 64kbps unipolar data signal undergoes stuff-synchronization with the

80 kHz (approx.) clock signal, then is converted into a format forthe radio transmission and fed to the MAIN BOARD as a 80 kbps(approx.) data signal.

(b) RX SideThe process of RX side is the reverse of the process of the TX side.The 80 kbps (approx.) unipolar data signal from the MAINBOARD and the 80 kHz (approx.) clock signal are entered into64K INTFC section. The data signal then is frame synchronizedwith the frame synchronizer circuit, then de-stuffed converted intoa 64 kbps unipolar data signal with a 64 kHz clock signal, and isfed to the output terminal.


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2-26

2.12 LAN Signal Transmission (Optional)

When the LAN INTFC module is used.

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

When the SC LAN INTFC module is used.

LAN Signal Transmission which used WS and the DSC transmission way(Optional).The data signal for LAN(10BASE-T) transmission is

performed in the SC LAN INTFC module. A throughput is decided by

data transmission capacity of equipment. When data transmission capacityis 16x2MB, it is set to about 2 Mbps, and it is set to about 80 kbps whenother.

2.12.1 Transmit Side


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


The data signal applied through the WS/SC LAN terminal. The data signalis converted to HDLC like frame for radio transmission and multiplexedwith 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 theLAN signal switch. The data signal from the LAN signal switch is outputthrough the LAN PORT1 and/or PORT2 terminals.

Note: The switching of data between PORT1 and PORT2 is notavailable.


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 theLAN signal switch. The data signal from the LAN signal switch is outputthrough the WS/SC LAN terminal.


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2-27

2.13 Alarm and Control Functions

Alarm and control functions of the IDU are described herein. Faultdetection circuits are provided in the IDU, sending signals to give alarmindications and remote alarm reports (see Fig. 2-1, Fig. 2-2 and Table 2-3).

The alarm signals initiated by detection circuits in the ODU are also sent tothe IDU. Therefore, the total alarm indications for the IDU and ODU are

provided by the IDU and ODU indicators on the IDU. When theequipment is operating normally, these indicators on the IDU stay unlit.When an abnormal condition occurs in the IDU (except power supplyfailure), the IDU indicator lights and a remote alarm report is made. Thesame applies for the ODU indicator.

To monitor/control the alarm and status of IDU/ODU, PM CARD modulecommunicates with pasolink network management system (PNMS) or

pasolink network management terminal (PNMT) via RS-232C (19.2kbps).

The PM CARD (Pasolink Management Card) provides the followingfunctions:

Communication with PNMS and PNMT

Communication with ALM CONT of the IDU

Communication with opposite PM CARD

Data collection of performance monitor

Forward input housekeeping alarm signals to PNMS or PNMT

Outputs of dry contact by control from PNMS or PNMT


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2-28

The PM CARD collects up to 300 items of events and performance

information from IDU and ODU, and stores performance information forup to eight days.

Notes in the Table 2-3 are as follows.

Notes:*1. These alarms are initial value condition (for setting method,refer to paragraph 3.4.2 in this Section III).

* 2. The alarm indication depends on system requirement (for setting method, refer to paragraph 3.4.2 in this Section III).

* 3. The WS alarm indications can be inhibited. The WS alarmitems are masked when the WS is not provided.

1. In an alarm condition, when the equipment is set tomaintenance condition, the TX ALM, RX ALM and BER ALM

for remote reporting are disabled.

2. When the IF cable between the IDU and ODU is electric shortcircuit condition or open condition, the IDU and ODU ALM

LEDs are synchronously flashing.


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2-3030 pages



40/137

ROI-S04488 OPERATION

3-1

3. OPERATION

This section provides instructions for operation of the IDU. Included isinformation on the interface terminals, interface jacks, controls, indicators,test jacks, equipment start-up and equipment shut-down.

3.1 Interface Terminals and Jacks

The IDU has interface terminals and jacks to interconnect data signals,alarm, IF signals and line power with the associated equipment. Theseinterface terminals and jacks are located on front of the equipment asshown in Fig. 3-1 and Fig. 3-2. The details of terminals and jacks forsignal interface are described in Table 3-1 and Table 3-2.

Caution: In back -to-back connection, the interface conditions of the PM CARD must be matched between two IDUs. Then,check the setting of the interface if it is RS-485 or RS-232Cbefore connecting the cable.

Fig. 3-1 Front View of the IDU for Interface Connectors and Jacks in 1+0 System

IDU

Without LAN option

With LAN option

TRAFFIC IN/OUT (CH1 to CH8) ALM/AUX ALM OW/DSC/ASC LA PORTNMS/RA

TRAFFIC IN/OUT (CH9 to CH16)

NMS LANWS/SC LANPORT1 PORT2

100M 100MIFIN/OUT

CALL RESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+


TRAFFIC IN/OUT (CH9 to CH16)

NMS LANWS/SC LAN

CALL RESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

IFIN/OUT


NMS LANSC LAN

CALL RESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+


NMS LANSC LAN

CALL RESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

IFIN/OUT

TRAFFIC IN

CH1 CH2 CH3 CH4

TRAFFIC OUT

CH1 CH2 CH3 CH4

IFIN/OUT

TRAFFIC IN

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8

TRAFFIC OUT

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8

With BNC Interface Connector (For 4 CH)

With BNC Interface Connector (For 8 CH)


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3-3

Table 3-1 Interface Terminals and Jacks in 1+0 system (1/12)

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), (Selectable 120-ohm, balanced/75-ohm,unbalanced)

Pins 1 (+) and 2 ( ) CH8 data input


Pins 6 (+) and 7 ( ) CH6 data inputPins 8 (+) and 9 ( ) CH5 data input





Pins 20 (+) and 21 ( ) CH8 data output








Pins 5,10,15,24 and 33 Ground

TRAFFIC IN/OUT (CH 9 to CH 16)


2.048 Mbps HDB-3 coded data input/output from/to DTE(CH 9 to CH 16) (Selectable 120-ohm, balanced/75-ohm,unbalanced) (for 16 x 2 MB system only)







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OPERATION ROI-S04488

3-4










Pins 34 (+) and 35 ( ) CH 10 data output



TRAFFIC IN/OUT with BNC (CH 1 to CH 8)


2.048 Mbps HDB-3 coded data input/output from/to DTE(CH 1 to CH 8) (for 2/4/8 x 2 MB system only) (Fixed 120-

ohm, balanced)Pins 1 (+) and 2 ( ) CH8 data input

















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3-5




TRAFFIC IN 75 (CH 1 to CH 8)(BNC, Female)

2.048 Mbps HDB3 coded data signal input from DTE(CH 1 to CH 8), (for 2/4/8 x 2 MB system only), (Fixed 75-ohm, unbalanced)

CH1 BNC CH1 data input








TRAFFIC OUT 75 (CH 1 to CH 8)(BNC, Female)

2.048 Mbps HDB3 coded data signal output to DTE(CH 1 to CH 8),(for 2/4/8 x 2 MB system only), (Fixed 75-ohm, unbalanced)

CH1 BNC CH1 data output





CH6 BNC CH6 data outputCH7 BNC CH7 data output





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3-6



2.048 Mbps HDB-3 coded data input/output from/to DTE(CH 1 to CH 4), (for 4 x 2 MB system only), (Fixed 120-ohm,

balanced)











2.048 Mbps HDB3 coded data signal input from DTE(CH 1 to CH 4), (for 4 x 2 MB system only), (Fixed 75-ohm,unbalanced)






2.048 Mbps HDB3 coded data signal output to DTE(CH 1 to CH 4), (for 4 x 2 MB system only), (Fixed 75-ohm,unbalanced),








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3-7

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

(PORT1/PORT2)

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

MDI-X MDI

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 fromODU

Caution: Do not connect other cables to this jack, becausethe 43 V DC power is superimposed on this

jack.

Danger: Do not touch the jack core before turning off power switch.




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3-8

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

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), DSC 3 input (optional) orAlarm1* 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



Normal signal in : Open Alarm signal in : Closed

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), DSC 3 output (optional) orAlarm1* 2 output (optional)

Notes: 1. * 2 Applies to the ALM INTFC module.2. Cluster Alarm 1 output (relay contact)

Normal signal out : Open Alarm signal out : Closed

Pins 16 (+) and 17 ( )/

Pins 16 and 17*2

ASC2 output (VF) (optional), DSC 4 output (optional) or

Alarm2*2 output (optional)



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)




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3-9

Pin 13 Ground Notes:1. * 1 Optional

2. Both ASC and DSC 64K cannot be used simultaneously.

ALM/AUX ALM(D-sub Connector, 37 Pins)

Alarm and transmission network surveillance auxiliary alarminput/output

Pins 1 (COM), 2 (NO) and3 (NC)

Transmitter alarm output* 3

Between Between Pins 1 and 2 Pins 1 and 3

Normal state : Open ClosedAlarm state : Closed Open

Pins 4 (COM), 5 (NO) and6 (NC)

Receiver alarm output* 3

Between BetweenPins 4 and 5 Pins 4 and 6


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



Pins 23 (COM), 24 (NO)and 25 (NC)

Maintenance alarm output* 3



Note:* 3 The BER threshold values and alarm items are setin factory (default). To change the setting of alarmitems by the PC, refer to Section 3.4.1 AlarmTable of this Manual.

(Housekeeping alarm input through optional PM CARD.)

Pin 7 Input 11

Pin 8 (G) Input 12

Pin 9 Input 21

Pin 10 (G) Input 22




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3-10

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 interfaceuses that of photo-coupler, the photo-coupler turns

ON if pair elements contact with each other.Output[ ] indicates the output of housekeepingalarm. Figure means the same as in the Input. IDU

side output uses the relay contact interface.

Pin 36 Input terminal of buzzer signal Note: In back-to-back station, the buzzer information

transmits to the next station.

Pin 37 Output terminal of buzzer signal Note: In back-to-back station, the buzzer information

transmits to the next station.




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3-11

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

Network management system (NMS) data input/output orremote access (RA) data input/output

Note: When the PM CARD is not mounted on theequipment, this connector is used for Remote Access.

PM CARD RA

Pin 1 Party alarm management system RA TXD (PAMS) 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)

Control/monitoring signal input/output from/to personalcomputer

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




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3-12

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 WS OUT (+)

Pin 2 WS OUT ( )

Pin 3 Reserved for SC LAN INTFC

Pin 4 WS IN (+)

Pin 5 WS IN ( )

Pin 6 Reserved for SC LAN INTFCPin 7 open

Pin 8 Frame ground (G)

For 75 ohms unbalanced interface

Pin 1 WS OUT

Pin 2 Reserved for WS INTFC (120 ohms balance)


Pin 4 WS IN



Pin 7 open

Pin 8 WS IN/OUT (G)




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3-13

Do not connect any cable to the "Reserved" pins.

Note: Available if WS INTFC is equipped. Disable when SC LAN INTFC is equipped. When WS signal is connected between two IDUs,

perform wiring as follows.



IDU AWS/SC LAN

(RJ45)

12345678

12345678

IDU BWS/SC LAN(RJ45)

WS (120 ohms)

IDU AWS/SC LAN

(RJ45)

12345

678

12345

678

IDU BWS/SC LAN

(RJ45)WS (75 ohms)


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3-14

WS /SC LAN(RJ45 8 pins)

DSC data for LAN

Pin 1 LAN DSC TX +

Pin 2 LAN DSC TX

Pin 3 LAN DSC RX +

Pin 4 Reserved for WS INTFC

Pin 5 Reserved for WS INTFCPin 6 LAN DSC RX

Pin 7 open

Pin 8 open

Note: Available when SC LAN INTFC is equipped. Disabled when ALM INTFC, ASC INTFC, DSC INTFC 64K or WS INTFC (in case of 16x2MB) isused.

Do not connect any cable to the "Reserved" pins. When SC LAN signal is connected between two

IDUs, perform wiring as follows.

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

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.

FG Frame ground



IDU AWS/SC LAN

(RJ45)

1234567

8

1234567

8

IDU BWS/SC LAN

(RJ45)SCLAN INTFC


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3-15

Table 3-2 Interface Terminals and Jacks of 1+1 System (1/14)


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

2.048 Mbps HDB3 coded data input/output from/to DTE(CH 1 to CH 8), (Selectable 120-ohm, balanced/75-ohm,unbalanced)

















TRAFFIC IN/OUT

(CH 9 to CH 16)(D-sub Connector, 37 Pins)

2.048 Mbps HDB3 coded data input/output from/to DTE

(CH 9 to CH 16), (Selectable 120-ohm, balanced/75-ohm,unbalanced), (for 16 x 2 MB system only)








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3-16














2.048 Mbps HDB-3 coded data input/output from/to DTE(CH 1 to CH 8), (for 2/4/8 x 2 MB system only), (Fixed 120-ohm, balanced)


















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3-17




2.048 Mbps HDB3 coded data signal input from DTE(CH 1 to CH 8), (for 2/4/8 x 2 MB system only), (Fixed 75-ohm, unbalanced)










2.048 Mbps HDB3 coded data signal output to DTE(CH 1 to CH 8),(for 2/4/8 x 2 MB system only), (Fixed 75-ohm, unbalanced)







CH7 BNC CH7 data outputCH8 BNC CH8 data output




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3-18



2.048 Mbps HDB-3 coded data input/output from/to DTE(CH 1 to CH 4), (for 4 x 2 MB system only), (Fixed 120-ohm,

balanced)











2.048 Mbps HDB3 coded data signal input from DTE(CH 1 to CH 4), (for 4 x 2 MB system only), (Fixed 75-ohm,unbalanced)






2.048 Mbps HDB3 coded data signal output to DTE(CH 1 to CH 4), (for 4 x 2 MB system only), (Fixed 75-ohm,unbalanced),





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

(PORT1/PORT2)

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

MDI-X MDI

Pin 1 RD + TD +

Pin 2 RD TD




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3-19

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, becausethe 43 V DC power is superimposed on this jack.

Danger: Do not touch the jack core before turning off

power switch.




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3-20

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

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)




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3-21

Pin 13 Ground Notes:1. * 1 Optional 2. Both ASC and DSC 64K cannot be used

simultaneously.

ALM(D-sub Connector, 37 Pins)

Alarm and answer signal input/output


No. 1 transmitter alarm output* 3 Between Between

Pins 1 and 2 Pins 1 and 3 Normal state : Open ClosedAlarm state : Closed Open


No. 2 transmitter alarm output* 3 Between Between



No. 1 receiver alarm output* 3 Between Between



No. 2 receiver alarm output* 3 Between Between


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





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3-22


Maintenance alarm output* 3 Between Between


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 Note:* 3 The BER threshold values and alarm items are set in

factory (default). To change the setting of alarm itemsby 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) areused 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

Pin 12 (G) Input 62




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3-23

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 paire.g. 11/12 forms a pair. IDU side interface uses that of

photo-coupler, the photo-coupler turns ON if pairelements contact 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




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3-24

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

Network management system (NMS) data input/output orremote 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 RA TXD (PAMS) 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 (No. 1)(D-sub Connector, 15 pin)

Control/monitoring signal input/output from/to the personalcomputer 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





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3-25

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

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

Pin 1 TXD

Pin 3 RXD

Pin 4 RTS

Pin 5 CTS

Pin 11 LOCAL CTSPin 12 LOCAL RTS

Pin 13 LOCAL RXD

Pin 15 LOCAL TXD


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

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

Pin 1 TXD

Pin 3 RXDPin 4 RTS

Pin 5 CTS

Pin 11 LOCAL CTS

Pin 12 LOCAL RTS

Pin 13 LOCAL RXD

Pin 15 LOCAL TXD


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




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3-26

WS /SC LAN(RJ45 8 pins)

Way side signal input/output

For 120 ohms balanced interface

Pin 1 WS OUT (+)

Pin 2 WS OUT ( )


Pin 4 WS IN (+)Pin 5 WS IN ( )


Pin 7 open

Pin 8 Frame ground (G)

For 75 ohms unbalanced interface

Pin 1 WS OUT

Pin 2 Reserved for WS INTFC (120 ohms balance)Pin 3 Reserved for SC LAN INTFC

Pin 4 WS IN



Pin 7 open

Pin 8 WS IN/OUT (G)




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3-27

Do not connect any cable to the "Reserved" pins.

Note: Available if WS INTFC is equipped. Disable when SC LAN INTFC is equipped. When WS signal is connected between two IDUs,

perform wiring as follows.



IDU AWS/SC LAN

(RJ45)

12345678

12345678

IDU BWS/SC LAN

(RJ45)WS (120 ohms)

IDU AWS/SC LAN

(RJ45)

123456

78

123456

78

IDU BWS/SC LAN

(RJ45)WS (75 ohms)


67/137


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3-29

3.2 Controls, Indicators and Test Jacks

The controls and indicators and test jacks on the IDU (see Fig. 3-3) aredescribed 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 (1 x10 -3)at the DPU section,

BER is worse than preset value at the DPU section (1 x10 -3,1x10 -4, 1x10 -5 or 1 x10 -6, selectable),

Frame synchronization is lost at the DPU section,

ATPC MAX PWR alarm condition,

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 levelat the ODU,

APC loop of local oscillator unlocks at the ODU or,

IF signal from the IDU is lost at the ODU,


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3-30

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 CPU 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 (Green):Lights when the IDU and associated equipment are linked. It blinks during data transmission. (LAN INTFC, SC LAN INTFC)

COLX/DUPLEX indicator (Amber):

Lights when :

The input/output LAN signal is in Full Duplex mode (LANINTFC),

When the LAN signal in Half Duplex mode, a collision conditionoccurs.(LAN INTFC, SC LAN INTFC)


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3-31

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 IDUis lost at the No. 1 channel ODU,

Output data stream or master clock signal is lost at the No. 1channel 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 CPU of No. 1 channel ODU and CPU onthe 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 IDUis lost at the No. 2 channel ODU,

Output data stream or master clock signal is lost at the No. 2channel 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 CPU of No. 2 channel ODU and CPU on

the IDU is lost.


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3-32

RX ALM 1 indicator (Only for 1+1 system)

Lights when:

Receiver input level decreases lower than a preset value fromsquelch 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 (1 103, 1 10 4, 1 10 5 or 1 10 6 selectable),

Frame synchronization is lost at the No. 1 channel DPU,

Communication between CPU of No. 1 channel ODU and CPU ofthe IDU is lost.

RX ALM 2 indicator (Only for 1+1 system)

Lights when:

Receiver input level decreases lower than a preset value fromsquelch 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. 2channel DPU,

BER is worse than preset value at the No. 2 channel DPU (1 103, 1 10 4, 1 10 5 or 1 10 6 selectable),

Frame synchronization is lost at the No. 2 channel DPU,

Communication between CPU of No. 2 channel ODU and CPU ofthe IDU is lost.

TX OPR 1 indicator (Only for 1+1 system):

Lights when the modulator and transmitter of No. 1 channel areselected.


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TX OPR 2 indicator (Only for 1+1 system):

Lights when the modulator and transmitter of No. 2 channel areselected.

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 inMaintenance conditions as follows:

No. 1 : Manually select No. 1 channelAUTO : Automatic switchover control

No. 2 : Manually select No. 2 channel

Caution: Before the start of maintenance, including operation of theOPR SEL SW on the front panel of the equipment, selectthe equipment to maintenance mode using the LCT.

After all operation for maintenance have been completed, perform MAINT OFF setting.

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

RESET IDUODUPWR

PASOLINK

MAINT

SELV

+

LA PORT

LA PORT

DSC/ASC LA PORTNMS/RA

CALL

OPR

FUSE (7.5A)

FUSE (7.5A)

EOW

MS LAN RX RXTXTX

OPR ALMSELNo.1

No.2

1

2

PASOLINKRESET

RESET IDUODUPWR

PASOLINK

MAINT

SELV

+

LA PORTNMS/RA

NMS LAN

CALL RESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

No. 1 CH MD UNIT

SW UNIT

IDU for 1+0

No. 2 CH MD UNIT

IDU for 1+1


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3-34

3.2.1 75 ohms/120 ohms Impedance Switch

For the IDU listed in the following table, 75 ohms/unbalanced - 120 ohms/balanced impedance switching of 2 MB interface is applicable on thefront board as shown in Fig. 3-4.

Note: These switches are already set by factory setting according tocustomer requirement.

IDU

System1+0 1+1

H0091A/J/L/M H0161A/J/L/M 4 x 2MB

H0091N H0161N 2/4/8 x 2MB

H0091F/H/K/P H0161F/H/K/P 2/4/8/16 x 2MB

8/13/2019 PASL MANUAL MDP Equipment Description(En

pasl manual mdp equipment description(english 060308)

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