Pasolink Training Manual

110
DIGITAL MICROWAVE RADIO SYSTEM PASOLINK Training Course

Transcript of Pasolink Training Manual

Page 1: Pasolink Training Manual

DIGITAL MICROWAVE RADIO SYSTEM

PASOLINK

Training Course

Page 2: Pasolink Training Manual

ROI-S04604 GENERAL

1-1

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 transmissiondigital microwave radio system. Included herein are system configuration,system performance, RF channel assignment, and alarm and control.

Page 3: Pasolink Training Manual

ROI-S04604 SYSTEM CONFIGURATION

2-1

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 tocommunicate from 2 to 16 data streams at 2.048 Mbps and/or up to 2channels 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.

Fig. 2-1 Outline of ODU

FOR 7-38 GHz BAND ODU

FGIFLMONRX LEV

Page 4: Pasolink Training Manual

SYSTEM CONFIGURATION ROI-S04604

2-2

Fig. 2-2 Front View of the IDUs in 1+0 System

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 100MCALL

RESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

TRAFFIC IN/OUT (CH1 to CH4) ALM/AUX ALM OW/DSC/ASC LA PORTNMS/RA

NMS LANSC LANPORT1 PORT2

100M 100MCALL

RESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

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

TRAFFIC IN/OUT (CH9 to CH16)

NMS LANWS/SC LAN

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

TRAFFIC IN/OUT (CH1 to CH4) ALM/AUX ALM OW/DSC/ASC LA PORTNMS/RA

NMS LANSC LAN

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

(a) 4 × 2MB Fix Rate Composition

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

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

(d) 2/4/8/16 × 2MB Free Rate with LAN Interface Composition

IF IN/OUT

IF IN/OUT

IF IN/OUT

IFIN/OUT

Page 5: Pasolink Training Manual

ROI-S04604 SYSTEM CONFIGURATION

2-3

Fig. 2-3 Front View of the IDUs in 1+1 System

RESET IDUODUPWR

PASOLINK

MAINT

SELV

− +

RESET IDUODUPWR

PASOLINK

MAINT

SELV

− +

PASOLINK

IF

LA PORT

LA PORT

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

CALL

OPR

AUX ALM

RESET IDUODU

FUSE (7.5A)

PWR

FUSE (7.5A)

EOW

NMS LANSC LAN RX RXTXTX

OPR ALMSELNo.1

No.2

1

2−

WARNING-43V OUTPUT

TURN OFF POWERBEFORE DISCONNECTING

IF CABLE

!

PASOLINK

MAINT

SELV

− +

PASOLINKRESET

RESET IDUODUPWR

PASOLINK

MAINT

SELV

− +

IN/OUT

IFWARNING

-43V OUTPUTTURN OFF POWER

BEFORE DISCONNECTINGIF CABLE

!

IN/OUT

LA PORT

LA PORT

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

CALL

OPR

AUX ALM

RESET IDUODU

FUSE (7.5A)

PWR

FUSE (7.5A)

EOW

NMS LANSC LAN RX RXTXTX

OPR ALMSELNo.1

No.2

1

2−

PASOLINK

MAINT

SELV

− +

PASOLINKRESET

RESET IDUODUPWR

PASOLINK

MAINT

SELV

− +

PORT1 PORT2

100M 100M

IFWARNING

-43V OUTPUTTURN OFF POWER

BEFORE DISCONNECTINGIF CABLE

!

IN/OUT

IFWARNING

-43V OUTPUTTURN OFF POWER

BEFORE DISCONNECTINGIF CABLE

!

IN/OUT

LA PORT

LA PORT

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

CALL

OPR

AUX ALM

FUSE (7.5A)

FUSE (7.5A)

EOW

NMS LANSC LAN RX RXTXTX

OPR ALMSELNo.1

No.2

1

2−

PASOLINKRESET

RESET IDUODUPWR

PASOLINK

MAINT

SELV

− +

TRAFFIC IN/OUT (CH9 to CH16)

IFWARNING

-43V OUTPUTTURN OFF POWER

BEFORE DISCONNECTINGIF CABLE

!

IN/OUT

IFWARNING

-43V OUTPUTTURN OFF POWER

BEFORE DISCONNECTINGIF CABLE

!

IN/OUT

LA PORT

LA PORT

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

CALL

OPR

AUX ALM

RESET IDUODU

FUSE (7.5A)

PWR

FUSE (7.5A)

EOW

NMS LANSC LAN RX RXTXTX

OPR ALMSELNo.1

No.2

1

2−

PASOLINK

MAINT

SELV

− +

RESET

PORT1 PORT2

100M 100M

IFWARNING

-43V OUTPUTTURN OFF POWER

BEFORE DISCONNECTINGIF CABLE

!

IN/OUT

IFWARNING

-43V OUTPUTTURN OFF POWER

BEFORE DISCONNECTINGIF CABLE

!

IN/OUT

TRAFFIC IN/OUT (CH9 to CH16)

(a) 4 × 2MB Fix Rate Composition

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

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

(d) 2/4/8/16 × 2MB Free Rate with LAN Interface Composition

Page 6: Pasolink Training Manual

ROI-S04604 SYSTEM PERFORMANCE

3-1

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 GUARANTEED

FrequencyRange [ GHz]

7.125-7.725

7.900-8.500

12.75-13.25

14.5-15.35

17.7-19.7

21.2-23.6

24.5-26.5

37.0-39.5

FrequencyPlan ITU-R

F.385-6 F.386-6Annex 4

F.497-6 F.636-3 F.595-7 F.637-3 F.748-4 F.749-2

Channel Separation

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/RXSpacing [MHz]

154161

126266

266 315420490728

340100810101560

100812001232

1008 1260

Output Power at Antenna Port [dBm]

+27 +25 +23 +23 +23 +20 +15 ±1.5 dB(ATT=0)

Threshold Level (dBm measured at antenna port)

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

System gain (dBm measured at ant. port)

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

Page 7: Pasolink Training Manual

SYSTEM PERFORMANCE ROI-S04604

3-22 pages

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

Frequency Agility (MHz without changing filters)

63 42 56 56-100 252 280

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, unbalanced120 ohms, balanced

Electro magnetic compatibility (EMC)

• ODU/IDU: ETS300385Class B

Power requirement*:

+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)

Table 3-1 Performance Characteristics (Cont’d)

ITEM 7 GHz 8 GHz 13 GHz 15 GHz 18 GHz 23 GHz 26 GHz 38 GHz GUARANTEED

Page 8: Pasolink Training Manual

GENERAL ROI-S02775

1-6

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 MB x 2/2 MB x 4/2 MB x8/2 MB x 16 system)

• 8.448 Mbps ±30 ppm (8 MB x 1 system) • 34.368 Mbps ±20 ppm (34 MB x 1 system)

Level: Meets specifications of ITU-T G.703

Code format: High density bipolar-3 (HDB-3)

Impedance: 75 ohms, unbalanced or120 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)

Page 9: Pasolink Training Manual

ROI-S02775 GENERAL

1-7

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 MB x 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: 482 wide × 66 high × 240 deep (mm)

Weight

• 2 MB x 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

Page 10: Pasolink Training Manual

ROI-S04605 GENERAL

1-3

1.2 Equipment Performance

The performance characteristics of the ODU are listed in Table 1-2 andradio frequency assignment is provided in para. 5.1.

Table 1-2 Performance Characteristics

ITEM 7 GHz 8 GHz 13 GHz 15 GHz 18 GHz 23 GHz 26 GHz 38 GHz GUARANTEED

Frequency Range [ GHz]

7.125-7.725

7.900-8.500

12.75-13.25

14.5-15.35

17.7-19.7

21.2-23.6

24.5-26.5

37.0-39.5

Frequency Plan ITU-R

F.385-6 F.386-6Annex4

F.497-6 F.636-3 F.595-7 F.637-3 F.748-4 F.749-2

Channel Separation 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)

RF TX/RX Spacing [MHz]

154161

126266

266 315420490728

340100810101560

100812001232

1008 1260

Output Powerat Antenna Port (dBm)

+27 +25 +23 +23 +23 +20 +15 ±1.5 dB(ATT=0)

Power Control 0 to 30 dB, in 1 dB steps, variable ±1.0 dB

Frequency Stability ±5 ppm ±10 ppm

Receiver Noise Figure

4.5 dB 4.5 dB 4.5 dB 4.5 dB 5.5 dB 6.5 dB 7.0 dB 7.5 dB +1.5 dB

Maximum Input Level

-15 dBm (No ERROR)

IF signal interface (between IDU and ODU)

Signal frequency

TX: 850 MHz

RX: 70 MHz

Signal level

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

Output: 0 dBm, nominal

Orderwire frequency

Output: 468 kHz, AM

Input: 450 kHz, AM

DC component -43 V DC

Page 11: Pasolink Training Manual

GENERAL ROI-S04605

1-44 pages

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

Control/Monitor signal frequency

10 MHz, ASK (at IF IN/OUT)

Impedance 50 ohms, unbalanced

Type of RF IN/OUT Portion *1

N-Female PBR - 140 PBR - 220 PBR -260 PBR - 320

Dimensions: 236 wide × 236 high × 113 deep (mm)

Weight: Approx. 4.5 kg Approx. 4 kg

Environmental temperature range

Operation -33°C to +50°C

Storage -40°C to +70°C

Table 1-2 Performance Characteristics (Cont’d)

ITEM 7 GHz 8 GHz 13 GHz 15 GHz 18 GHz 23 GHz 26 GHz 38 GHz GUARANTEED

Page 12: Pasolink Training Manual

ROI-S04604 RADIO FREQUENCY ASSIGNMENT

4-1

4. RADIO FREQUENCY ASSIGNMENT

Radio frequencies for Pasolink [ ] GHz 4/8/17/34 MB digital radio systemare 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 TRPequipment (ODU) description (Section II).

Page 13: Pasolink Training Manual

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 panel 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

Page 14: Pasolink Training Manual

FU

NC

TIO

NA

L O

PE

RA

TIO

NR

OI-S

04488

2-2828 p

ages

Table 2-3 Alarm Indication and Reporting

DETECTING CIRCUIT ALARM CONDITION ALARM INITIATED LED INDICATION

ON IDUREMOTE ALARM

REPORT *1

INTFC

AIS signal is sent AIS SEND —IDU*2

—AIS (all logic “1”) is received AIS RCVD — —Input data stream is lost INPUT LOSS TX ALM ( )

IDU

TX ALM ( )Transmitter clock is lost TX CLK LOSS TX ALM ( ) TX ALM ( )Receiver clock is lost RX CLK LOSS RX ALM ( ) RX ALM ( )Output data stream is lost OUTPUT LOSS RX ALM ( ) RX ALM ( )Setting error of traffic channel assignment for usage CHANNEL USAGE ERROR TX ALM ( ) TX ALM ( )

SW BOARDTX 1/2 CLK is lost TX IN CLK LOSS1/2 TX ALM 1/2 TX ALM 1/2RX1/2 CLK is lost RX IN CLK LOSS1/2 RX ALM1/2 RX ALM 1/2

LAN INTFC FE link down, selectable FE LINK DOWN LINK LAN INTFC ALM

WS INTFC

Wayside input data stream is lost WS INPUT LOSS TX ALM ( )

IDU*3

TX ALM ( )Wayside AIS is received WS AIS RCVD TX ALM ( ) TX ALM ( )Wayside output data stream is lost WS OUTPUT LOSS RX ALM ( ) RX ALM ( )Wayside AIS is transmitted WS AIS SEND RX ALM ( ) RX ALM ( )

WS INTFC Wayside channel usage error, selectable WS CHANNEL USAGE TX ALM ( )

IDU

TX ALM ( )DPU Output data stream or master clock signal is lost at the DPU (TX) circuit TX DPU ALM TX ALM ( )

TX ALM ( )MOD VCO synchronization is lost at the MOD circuit MOD ALM TX ALM ( )

DEMCarrier synchronization is lost DEM ALM RX ALM ( ) RX ALM ( )IF input signal is lost DEM ALM RX ALM ( ) RX ALM ( )

DPU

Frame synchronization is lost at the DPU (RX) F SYNC ALM RX ALM ( ) RX ALM ( )

BER is worse than preset value (1 x 10−3) HIGH BER 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

CPU communication error between IDU and ODU OPR ALMTX ALM ( )RX ALM ( )

TX ALM( )RX ALM ( )

ODU

Transmitter RF power decreases 3 dB from normal TX PWR ALM TX ALM ( )

ODU

TX ALM ( )Receiver input level decreases from squelch level at ODU RX LEV ALM RX ALM ( ) RX ALM ( )

APC loop of local oscillator for transmitter or first local oscillator for receiver unlocks at ODU APC 1 ALMTX ALM ( )RX ALM ( )

TX ALM ( )RX ALM ( )

APC loop of second local oscillator for receiver unlocks at ODU APC 2 ALMTX ALM ( )RX ALM ( )

TX ALM ( )RX ALM ( )

IF signal from the IDU is lost at ODU IF INPUT ALM TX ALM ( ) TX ALM ( )

When the equipment is set to the Maintenance condition by PC. MAINT ALM MAINT MAINT ALMWhen 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)

— MAINT ( ) —

SW BOARD OPR SEL No.1-No.2 switch is set to No.1 or No.2 position. MAINT ALM MAINT ( ) MAINT ALM

Page 15: Pasolink Training Manual

ODU Description 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

tarek
ODU
tarek
Idu Description and Operation
tarek
IDU Description and Operation
Page 16: Pasolink Training Manual
Page 17: Pasolink Training Manual
tarek
B- 1+1 IDU
tarek
B- 1+1 IDU
tarek
B- 1+1 IDU
Page 18: Pasolink Training Manual
Page 19: Pasolink Training Manual

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 2- 1 and Fig 2-2 Functional Block Diagram.

Page 20: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

2-3/4

Fig. 2-1 Functional 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 1-4FE LB ANS 1-4NE LB ANS 1-4

AIS RCVD 1-2INPUT LOSS 1-2 SERIAL ALM

SERIAL DATA

P-SCONV

S-PCONV

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

a

b

t

s

q

v

u

j

i

r

cd

kl

ef

mn

op

gh

CH5 INCH6 INCH5 OUTCH6 OUTCH7 INCH8 INCH7 OUTCH8 OUT

CH9 INCH10 INCH9 OUTCH10 OUTCH11 INCH12 INCH11 OUTCH12 OUT

CH13 INCH14 INCH13 OUTCH14 OUTCH15 INCH16 INCH15 OUTCH16 OUT

(CH13 - CH16)

(CH5 - CH8)

(SAME AS ABOVE)

(CH9 - CH12)

(SAME AS ABOVE)

TX FPLS

TX CLK

RX CLK

RX FPLS

16M CLK

AIS CTRL

F SYNC ALM

INPUT LOSS 1-2

AIS RCVD 1-2

INPUT LOSS 3-4

AIS RCVD 3-4

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

y

w

x

INTFC (CH1 - CH4)

TIM GENz

2 x 2 MBSYSTEM

Page 21: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

2-5/6

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

ASC/DSC/ALM INTFC

abcdefgh

P-SCONV

PLS MON

MUX

SCRB

PARITYCHECK

TIMGEN

PCMCODEC

H

DIFENC

DIGFIL

PLSMON

MSTCLKMON

EOWOUT

EOW IN

EOW

D-ACONV

D-ACONV

4PHMOD

MOD

DEM

EOWDEM

EOWMOD

VCO450 kHz

IF IN/OUT

A

B

C

D

E

DATA UP

DATA DOWN

TX DPU ALM

MOD ALM

F

G

F SYNC ALM

BER ALM

H

I

P-SCONV

S-PCONV

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

rSERIAL DATA

Ethernet SWSPEED CONV

LAN INTFC*

PORT1

PORT2

vRX FPLS

t

u

16M CLK

RX CLK

ijkl

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)

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

DPU

MOD

−43 V DC

INTERFACE

TX FPLSwx TX CLK VCO

AIS CTRL OFF

CPU CLK

AIS CTRLy

TERMINAL

Note: * Optional.

10BASE-T/100BASE-TX

z

WSIN/OUT(RJ45)

INTERFACETERMINAL

B-U CONVU-B CONV

WS/SC LAN INTFC*

ASC/EOW

OW/DSC/ASC

Page 22: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

2-7/8

Fig. 2-1 Functional Block Diagram of IDU in 1+0 System (3/3)

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

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 DOWN

CPU

S-PCONV

S-PCONV

S-PCONV

TX PWR ALM

RX LEV ALMAPC 1 ALM

APC 2 ALM

IF INPUT ALM

INPUT LOSS 1-16

TX CLK LOSSRX CLK LOSS

OUTPUT 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

RL4

RL1

RL2

RL3

MAINT

ODU

IDU

INTERFACETERMINAL

NO

COM

NC

NO

COM

NC

NO

COM

NC

NO

COM

NC

MAINT

TX ALM

RX ALM

BER ALM

Notes: 1. *Optional.

2. Four relay contacts are outputed from interface terminal (ALM/ALM AUX). Plural alarms can be appliedto 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.

CPU CLK

PM CARD*

PHOTOCOUPLERs

RELAYs

INTERFACETERMINAL

HOUSEKEEPINGOUTPUT

HOUSEKEEPINGINPUT

INTERFACETERMINAL

Page 23: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

2-9/10

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

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

AIS RCVD 1-2INPUT LOSS 1-2 SERIAL ALM

SERIAL DATA

P-SCONV

S-PCONV

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

a

b

t

s

q

v

u

j

i

r

cd

kl

ef

mn

op

gh

CH5 INCH6 INCH5 OUTCH6 OUTCH7 INCH8 INCH7 OUTCH8 OUT

CH9 INCH10 INCH9 OUTCH10 OUTCH11 INCH12 INCH11 OUTCH12 OUT

CH13 INCH14 INCH13 OUTCH14 OUTCH15 INCH16 INCH15 OUTCH16 OUT

(SAME AS ABOVE)

INTFC SECTION (CH13 - CH16)

(SAME AS ABOVE)

INTFC SECTION (CH5 - CH8)

(SAME AS ABOVE)

INTFC SECTION (CH9 - CH12)

INTFC SECTION (CH1 - CH4)

TX FPLS

TX CLK

RX CLK

RX FPLS

12M CLK

AIS CTRL

F SYNC ALM

INPUT LOSS 1-2

AIS RCVD 1-2

INPUT LOSS 3-4

AIS RCVD 3-4

FROM/TOFIG. 2-2 (2/4)

y

w

x

2 × 2 MBSYSTEM

Page 24: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

2-11/12

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

D-ACONV

DEM

EOWDEM

EOWMOD

IF IN/OUT

A

B

DATA UP

DATA DOWN

CDE

CPU CLKTX DPU ALM

MOD ALM

F

G

H

I

JBER ALM

F SYNC ALM

DEM ALM

450 kHz

–43 V DC

4 PHMOD

D-ACONV

DIGFIL

DIFENC

SCRB

PARITYCHECK

MUX

PLSMON

MSTCLKMON

TIMGEN

P-SCONV

PLS MONTX FPLSTX CLK

g

s

y

SERIAL ALM

F SYNC ALM

AIS CTRL

From/ToFIG. 2-2 (1/4)

S-PCONV

S-PCONV

MUX ALM 1-4

H BER ALML BER ALM

F SYNC ALMBER ALM

MOD CW

AIS CTRL OFF

BER THRESHOLD

FRAME ID

4 PHDEM

70 MHz

DEMA-D

CONV

A-DCONV

BERDET

F SYNC

DIFDECDSCRB

TIMGEN

DEMUX

RX FPLS12M CLKRX CLK

IF IN/OUT

From/ToFIG. 2-2 (3/4)

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)

HASC/DSC/ALM INTFC *

B-U CONV/DPU

U-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

MPXDPU

No. 1 MD UNITSW UNIT

From/ToFIG. 2-2 (3/4)

Note: * Optional.

From/ToFIG. 2-2 (1/4)

DATA UP

DATA DOWN

CPU CLK

TX DPU ALM

MOD ALM

DEM ALM

F SYNC ALM

BER ALM

K

L

M

O

N

P

Q

R

S

T

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

From/ToFIG. 2-2 (1/4)

MDP

850 MHzVCO

PCMCODEC

MOD

P-SCONV

CLK MON

H

WS/SC LAN INTFC *IN

OUT

WS/SC LAN

B-U CONV/DPU

U-B CONV/DPU

SW

ASC/EOW

SERIAL ALM

SYS ALM

SYS CTRL

SYS ALM

SYS CTRL

A-D CONV/LEV CONV

(RJ45)

Page 25: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

2-13/14

Fig. 2-2 Functional Block Diagram of IDU in 1+1 System (3/4)

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

B

CD

JBER ALMF SYNC ALM

DATA UP

DATA DOWN

CPU CLKTX DPU ALM

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

FE LB CTRL R 1-4

DPUSERIAL

FE LB ANS R 1-4INPUT LOSS 1-4AIS RCVD 1-4NE LB ANS 1-4TX IN CLK LOSSRX IN CLK LOSSOUTPUT LOSS 1-4AIS SEND 1-4DEM ALM L 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)

ODU

IDU

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 1-16AIS CTRL 1-16 MAINT

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) rSERIAL DATA

LAPORT

NMS/RA

MAIN BOARD 1 SERIAL

MAIN BOARD 2 SERIAL

d

e

f

TX 2 ALM

From FIG. 2-2 (4/4)

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

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

RX 2 ALM

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

(SAME AS ABOVE)

ALM CTRL (No. 2 CH)ODU

IDU

MAINT

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

Page 26: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

2-15/16

Fig. 2-2 Functional Block 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)

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

TX 1 ALMa

TX 2 ALM

RX 1 ALM

d

b

TX DPU 1 ALMTX PWR 1 ALMAPC 11 ALMAPC 12 ALMIF INPUT 1 ALMOPR 1 ALM

MOD 2 ALMTX DPU 2 ALMTX PWR 2 ALMAPC 21 ALMAPC 22 ALMIF INPUT 2 ALMOPR 2 ALM

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

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

S/PRX 2 ALM

e

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

cMAIN BOARD 1 SERIAL

S/P

S/PfMAIN BOARD 2 SERIAL

TX PWR 1 ALMAPC 11 ALM

MUX ALM 1

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

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

APC 12 ALMIF INPUT 1 ALMINPUT LOSS 1-4

TX PWR 2 ALMAPC 21 ALM

MUX ALM 2

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

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

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

ALM CTRL (COMMON)

TX ALM 1

TX OPR 1

TX OPR 2

TX ALM 2

AUX ALM

OPR RELNo. 1No. 2

REMOTECTRL IN

TERMINAL

RX ALM 1

RX OPR 1

RX OPR 2

RX ALM 2

OPRSEL

No. 1I

AUTOI

No. 2

RL 1

RL 2

RL 3

RL 4

RL 5

RL 6

RL 8

RL 7

ALMTERMINAL

TX ALM 1

TX ALM 2

RX ALM 1

RX ALM 2

BER ALM

MAINT ALM

RX SW OPR

TX SW OPR

NOCOMNCNOCOMNC

NOCOMNCNOCOMNC

NOCOMNCNOCOMNC

No.2COMNo.1No.2COMNo.1

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 paragraph 3.4for changing the settings.

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

Page 27: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

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: two2 MB × 4 system: four2 MB × 8 system: eight2 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 framepattern, 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.

Page 28: Pasolink Training Manual

FUNCTIONAL OPERATION ROI-S04488

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 arecalculated 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 endwhich give raise to phase ambiguity. To avoid this, an absolute referencephase 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 CODENATURAL

BINARY CODE

0 0 0 0 0

1 0 1 0 1

2 1 1 1 0

3 1 0 1 1

Page 29: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

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 π /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 onthe 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 ...

+ + + + +′ ′ ′ ′ ′ ′ ′ ′ ′ ′ ′ ′ ′ ′ ′

Page 30: Pasolink Training Manual

FUNCTIONAL OPERATION ROI-S04488

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 thetransmitting 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 furtherprocessing.

P

-L

Q-L +L

+L π

π/2

3π/2

0

STATUS P CHANNEL Q CHANNEL

1(0) -L -L

2(π/2) -L +L

3(π) +L +L

4(3π/2) +L -L

Page 31: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

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 π/2 produced by the carrier recoverycircuit, which consists of a carrier synchronizer, a 70 MHz oscillator, and acarrier splitter (π/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.

π

π/2

3π/2

0

INPUT PHASE

DETECTED OUTPUT

P CHANNEL Q CHANNEL

0 -1 -1

π/2 -1 +1

π +1 +1

3π/2 +1 -1

CARR 1

CARR 2

Page 32: Pasolink Training Manual

FUNCTIONAL OPERATION ROI-S04488

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 Equalization

This 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 bipolarpulse 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.

Page 33: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

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.) timingpulse 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:

TRANSMISSIONCHANNEL

DSC 1 and DSC 2− MAIN BOARD

Page 34: Pasolink Training Manual

FUNCTIONAL OPERATION ROI-S04488

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 digitalprocessing 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 transmissionprovides 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 bilopar-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.

Page 35: Pasolink Training Manual

ROI-S04488 FUNCTIONAL OPERATION

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 Side

A 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 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.) 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. Theresulting 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 Side

The 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 the80 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 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 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.

Page 36: Pasolink Training Manual

FUNCTIONAL OPERATION ROI-S04488

2-26

2.12 LAN Signal Transmission

The data signal for LAN (10BASE-T or 100BASE-TX) transmission isperformed 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.

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.

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.

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

Page 37: Pasolink Training Manual

ROI-S04488 OPERATION

3-3

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

Page 38: Pasolink Training Manual

OPERATION ROI-S04488

3-4

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-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 from ODU

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

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

Table 3-1 Interface Terminals and Jacks in 1+0 system (2/8)

Terminal Description

Page 39: Pasolink Training Manual

ROI-S04488 OPERATION

3-5

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*2ASC1 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 : OpenAlarm signal in : Closed

Pins 3 (+) and 4 (−)/

Pins 3 and 4*2ASC2 input (VF) (optional) or Alarm2*2 input (optional)

Notes: 1. *2 Applies to the ALM INTFC module.2. Cluster Alarm 2 input (photocoupler)

Normal signal in : OpenAlarm 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*2ASC1 output (VF) (optional) or Alarm1*2 output (optional)

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

Normal signal out : OpenAlarm signal out : Closed

Pins 16 (+) and 17 (−)/

Pins 16 and 17*2ASC2 output (VF) (optional) or Alarm2*2 output (optional)

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

Normal signal out : OpenAlarm signal out : Closed

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)

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

Terminal Description

Page 40: Pasolink Training Manual

OPERATION ROI-S04488

3-6

Pin 13 Ground

Notes:1. *1 Optional2. 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) and 3 (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) and 6 (NC)

Receiver alarm output*3

Between BetweenPins 4 and 5 Pins 4 and 6

Normal state : Open ClosedAlarm state : Closed Open

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 BetweenPins 20 and 21 Pins 20 and 22

Normal state : Open ClosedAlarm state : Closed Open

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

Maintenance alarm output*3

Between BetweenPins 23 and 24 Pins 23 and 25

Normal state : Open ClosedAlarm state : Closed Open

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

Table 3-1 Interface Terminals and Jacks in 1+0 system (4/8)

Terminal Description

Page 41: Pasolink Training Manual

ROI-S04488 OPERATION

3-7

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 UsedNote: Input[ ] indicates the input of housekeeping alarm.

The figure means that same order of tens makes thesame pair e.g. 11/12 forms a pair. IDU side interfaceuses that of photo-coupler, the photo-coupler turnsON if pair elements contact with each other. Output[ ] indicates the output of housekeepingalarm. Figure means the same as in the Input. IDUside output uses the relay contact interface.

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

transmits to the next station.

Table 3-1 Interface Terminals and Jacks in 1+0 system (5/8)

Terminal Description

Page 42: Pasolink Training Manual

OPERATION ROI-S04488

3-8

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

transmits to the next station.

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

Network management system (NMS) data input/output or remote 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 personal computer

Pin 1 TXD

Pin 3 RXD

Pin 4 RTS

Pin 5 CTS

Pin 11 LOCAL CTS

Pin 12 LOCAL RTS

Table 3-1 Interface Terminals and Jacks in 1+0 system (6/8)

Terminal Description

Page 43: Pasolink Training Manual

ROI-S04488 OPERATION

3-9

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.

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 6 LAN DSC RX−

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

Table 3-1 Interface Terminals and Jacks in 1+0 system (7/8)

Terminal Description

Page 44: Pasolink Training Manual

OPERATION ROI-S04488

3-10

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

−20 V to −60 V/+20 V to +60 V DC power inputNote: 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

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

Terminal Description

Page 45: Pasolink Training Manual

ROI-S04488 OPERATION

3-11

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

Terminal Description

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)

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 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

Page 46: Pasolink Training Manual

OPERATION ROI-S04488

3-12

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-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 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 offpower switch.

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

Terminal Description

Page 47: Pasolink Training Manual

ROI-S04488 OPERATION

3-13

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*2ASC1 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 : OpenAlarm signal in : Closed

Pins 3 (+) and 4 (−)/

Pins 3 and 4*2ASC2 input (VF) (optional) or Alarm2*2 input (optional)

Notes: 1. *2 Applies to the ALM INTFC module.2. Cluster Alarm 2 input (photocoupler)

Normal signal in : OpenAlarm 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*2ASC1 output (VF) (optional) or Alarm1*2 output (optional)

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

Normal signal out : OpenAlarm signal out : Closed

Pins 16 (+) and 17 (−)/

Pins 16 and 17*2ASC2 output (VF) (optional) or Alarm2*2 output (optional)

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

Normal signal out : OpenAlarm signal out : Closed

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.

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

Terminal Description

Page 48: Pasolink Training Manual

OPERATION ROI-S04488

3-14

ALM(D-sub Connector, 37 Pins)

Alarm and answer signal input/output

Pins 1 (COM), 2 (NO) and 3 (NC)

No. 1 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) and 6 (NC)

No. 2 transmitter alarm output*3

Between BetweenPins 4 and 5 Pins 4 and 6

Normal state : Open ClosedAlarm state : Closed Open

Pins 7 (COM), 8 (NO) and 9 (NC)

No. 1 receiver alarm output*3

Between BetweenPins 7 and 8 Pins 7 and 9

Normal state : Open ClosedAlarm state : Closed Open

Pins 10 (COM), 11 (NO) and 12 (NC)

No. 2 receiver alarm output*3

Between BetweenPins 10 and 11 Pins 10 and 12

Normal state : Open ClosedAlarm state : Closed Open

Pins 14 Buzzer signal outputNote: The terminal is used as an input terminal of buzzer

signal for the back-to-back station.

Pins 15 Buzzer signal inputNote: The terminal is used as an input terminal of buzzer

signal for the back-to-back station.

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 BetweenPins 20 and 21 Pins 20 and 22

Normal state : Open ClosedAlarm state : Closed Open

Table 3-2 Interface Terminals and Jacks of 1+1 System (4/9)

Terminal Description

Page 49: Pasolink Training Manual

ROI-S04488 OPERATION

3-15

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

Maintenance alarm output*3

Between BetweenPins 23 and 24 Pins 23 and 25

Normal state : Open ClosedAlarm state : Closed Open

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

Switching answer signal output for transmitterBetween Between

Pins 26 and 27 Pins 26 and 28No. 1 CH selection : Open ClosedNo. 2 CH selection : Closed Open

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

Switching answer signal output for receiverBetween Between

Pins 29 and 30 Pins 29 and 31No. 1 CH selection : Open ClosedNo. 2 CH selection : Closed Open

Note:*3 The BER threshold values and alarm items are set infactory (default). To change the setting of alarm itemsby the PC, refer to Section 3.4.1 "Alarm Table" of thisManual.

AUX ALM(D-sub Connector, 25 Pins)

Transmission network surveillance auxiliaryNote: 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

Table 3-2 Interface Terminals and Jacks of 1+1 System (5/9)

Terminal Description

Page 50: Pasolink Training Manual

OPERATION ROI-S04488

3-16

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. Thefigure means that same order of tens makes the same paire.g. 11/12 forms a pair. IDU side interface uses that ofphoto-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 outputuses 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 channelNo. 1 channel selection : closed

Pins 22 and 25 Remote switching control signal input for No. 2 channelNo. 2 channel selection : closed

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

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 RA TXD(PAMS) TXD

Pin 2 EMS TXD/TXD+ RA GND

Pin 3 EMS RXD/TXD− RA RXD

Table 3-2 Interface Terminals and Jacks of 1+1 System (6/9)

Terminal Description

Page 51: Pasolink Training Manual

ROI-S04488 OPERATION

3-17

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

Table 3-2 Interface Terminals and Jacks of 1+1 System (7/9)

Terminal Description

Page 52: Pasolink Training Manual

OPERATION ROI-S04488

3-18

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)

DSC data for LAN

Pin 1 LAN DSC TX+

Pin 2 LAN DSC TX−

Pin 3 LAN DSC RX+

Pin 6 LAN DSC RX−

Table 3-2 Interface Terminals and Jacks of 1+1 System (8/9)

Terminal Description

Page 53: Pasolink Training Manual

ROI-S04488 OPERATION

3-19

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.

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 6 LAN DSC RX−

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

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

-20 V to -60 V DC or +20 V to +60 V DC power inputNote: 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

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

Terminal Description

Page 54: Pasolink Training Manual

OPERATION ROI-S04488

3-20

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 (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 levelat the ODU,

• APC loop of local oscillator unlocks at the ODU or,

• IF signal from the IDU is lost at the ODU,

Page 55: Pasolink Training Manual

ROI-S04488 OPERATION

3-21

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, buzzerin 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 collisioncondition occurs.

Page 56: Pasolink Training Manual

OPERATION ROI-S04488

3-22

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

Lights when:

• Transmitter RF output power decreases 3 dB from normal at theNo. 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 theNo. 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 onthe IDU is lost.

Page 57: Pasolink Training Manual

ROI-S04488 OPERATION

3-23

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 ×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 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 ×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 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.

Page 58: Pasolink Training Manual

OPERATION ROI-S04488

3-24

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 controlNo. 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

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

No. 1 CHMD UNIT

SW UNIT

IDU for 1+0

No. 2 CHMD UNIT

IDU for 1+1

Page 59: Pasolink Training Manual

GENERAL ROI-S04605

1-2

1.1 Equipment Composition

The ODU is provided with modules which are connected directly or bycoaxial cable as shown in Table 1-1.

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

Note: Location numbers are keyed to those in Table 1-1.

Fig. 1-2 Component Module Arrangement

Table 1-1 Component Module Arrangement

LOCATIONNO. *

MODULE

APPLICATION

7 GHzH0738( )

8 GHzH0739( )

13 GHz H0330( )

15 GHz H0331( )

18 GHz H0332( )

23 GHz H0333( )

26 GHz H0334( )

38 GHz H0335( )

1 RF CKT H0722() H0723() H0360( ) H0361( ) H0362( ) H0363( ) H0364 ) H0365( )

2 IF CKT H0721() H0323( ) H0321( )

3 PS H0390()

FGIFLMONRX LEV

1

3

A

View A

2 (IF CKT)1 (RF CKT)

Odu Description and Operation

Page 60: Pasolink Training Manual

ROI-S04605 FUNCTIONAL OPERATION

2-1

2. FUNCTIONAL OPERATION

This chapter describes the functional operation of the ODU whichcomprises of transmitter section, receiver section, and alarm and controlsection. A functional block diagram is shown in Fig. 2-1.

2.1 Transmitter Section

This section describes Engineering Orderwire (EOW) signal demodulationand 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 isseparated through the MPX circuit. The EOW signal is processed at theCPU and fed to the RX LEV MON jack. The DC component is applied tothe PS module to produce regulated DC voltages which are used in theODU. The 850 MHz IF signal enters the mixer (MIX) through the AGCAMP which compensate for any input IF signal level variations.

The MIX mixes the incoming 850 MHz IF signal with a [ ] GHz band localsignal generated by the synthesized RF local oscillator to produce thespecified transmit RF signal.

The transmit RF signal enters a BPF which eliminates undesiredcomponents generated in the IF-to-RF conversion. The filtered RF signalgoes to the RF amplifier where it is amplified to the required level by anautomatic level control (ALC) circuit. The amplified RF signal is then fedto the antenna through the Duplexer.

The automatic transmitter power control (ATPC) function automaticallyvaries the TX output power according to path conditions. Fading exertsheavy influences on propagation, causing the receive signal level at theopposite station to vary. The ATPC function operates by controlling thetransmitter output power of the local station according to the variation ofthe received signal level at the opposite station. The received signal levelvariation at the opposite station is informed to the local station using theATPC bits in the overhead.

A constant transmit output power is maintained using the ALC functionwhich is provided in the RF CKT module. The ALC circuit detect thetransmit output power using a diode to obtain a DC voltage proportional tothe transmit power. The gain of the RF amplifier is controlled inverselywith this detected DC voltage to maintain the transmit output power withinthe specified limits.

Page 61: Pasolink Training Manual

FUNCTIONAL OPERATION ROI-S04605

2-2

MIX

MP

X

ALM

RX

IF F

DAT

A

TX

F D

ATA

SY

NT

H IF

ALM

SY

NT

H R

F A

LM

RX

IF L

EV

MO

N

T P

WR

MO

N

T P

WR

CT

RL

TX

IF L

EV

MO

N

MA

INIF

AM

P

AG

C

MIX

20 M

Hz

AG

CA

MP

IF

IDU

)(T

O/F

RO

M

-7 V

RX

LE

VM

ON

IF:8

50 M

Hz

IF:7

0 M

Hz

RF

CK

T

RF

IN/O

UT

IF C

KT

Fig

. 2-1

Fu

nct

ion

al B

lock

Dia

gra

m o

f th

e O

DU

+7

V

MIX

LO AM

P

RF

AM

P

RF

AM

P

TR

X

VC

OP

D1/

2

PD

1/2

(EO

W)

PS

VC

O

-40

V

-40

V

TX

IF L

EV

CT

RL

RX

IF L

EV

CT

RL

CP

U

Page 62: Pasolink Training Manual

ROI-S04605 FUNCTIONAL OPERATION

2-3

2.2 Receiver Section

This part describes RF-to-IF conversion, IF-to-IF conversion and EOWsignal modulation.

An RF signal received from the antenna are filtered by the BPF and entersthe first MIX. The first MIX mixes the applied RF signal with an localsignal which is generated by a synthesized RF local oscillator to produce afirst IF signal. Then, the IF signal is fed to the second MIX through theBPF which eliminates undesired components. The second MIX mixes the1st IF signal with a local signal generated by a synthesized IF localoscillator to produce a 70 MHz IF signal.

The 70 MHz IF signal passes a 70 MHz BPF which eliminates undesiredcomponents. The filtered 70 MHz IF signal goes to the main IF amplifier(MAIN IF AMP). The IF signal amplified by the MAIN IF AMP withautomatic gain control (AGC) passes through the MPX circuit.

The MPX circuit combines alarm, monitoring and response signals whichare processed at the CPU in the ODU and the EOW signal with the IFsignal. 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. Faultdetection circuits are provided in the ODU. The detected alarm signals aregathered into the CPU which processes the alarm signals to be sent to theIDU. Here, the TX PWR ALM signal is produced by the T PWR MONsignal issued from the RF AMP circuit and the IF INPUT ALM signal isproduced by the TX IF LEV MON signal issued from the IF amplifier withAGC AMP circuit. The RX LEV ALM is also produced by the RX IFLEV MON signal issued from the MAIN IF AMP circuit. The initiatedalarm signals are sent to the IDU combined with the IF signal through theMPX circuit. Fault in the ODU can be monitored with alarm indicators onthe IDU. The received RF signal level can be monitored at the RX LEVMON 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 atthe IDU by connecting the personal computer.

• Transmitter output power

• Received signal level

• DC voltage

Page 63: Pasolink Training Manual

FUNCTIONAL OPERATION ROI-S04605

2-44 pages

The setting of the radio frequency and TX output power are performedfrom the IDU using personal computer. The TX output power can becontrolled by a control command signal (T PWR CTRL) from the IDU.

To communicate with the opposite station or with the IDU usingorderwire, an optional OW/RX LEV monitor unit is necessary, the HEADSET jack is provided on the OW/RX LEV Monitor. Therefore, connect theOW/RX LEV Monitor to the RX LEV MON jack on the ODU.

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

Table 2-1 Alarm Indication and Reporting

INITIATINGMODULE

ALARM CONDITIONALARM

INITIATED

RF CKT

IF input signal from IDU lost IF INPUT ALM (*)

Transmit RF power decreases 3 dBfrom nominal TX PWR ALM (*)

APC loop of TX local oscillator orfirst local oscillator for RX unlocks APC 1 ALM (*)

APC loop of second local oscillatorfor RX unlocks APC 2 ALM (*)

Receiver input level decreases bypreset value from squelch level RX LEV ALM (*)

Communication between IDU andODU is lost OPERATION ALM (*)

Page 64: Pasolink Training Manual

ROI-S04605 OPERATION

3-1

3. OPERATION

This chapter provides instructions for operating the ODU. Included areinformation 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 theassociated equipment. These interface terminals and jacks are located asshown in Fig. 3-1 and are used as described in Table 3-1.

Fig. 3-1 Interface Terminal and Jack Locations

7-38 GHz Band ODU

(FG)

IF IN/OUT

(FRONT VIEW)

FGIFLMONRX LEV

13-38 GHz Band ODU

RF IN/OUT

(REAR VIEW)

7/8 GHz Band ODU

RF IN/OUT

(REAR VIEW)

Page 65: Pasolink Training Manual

OPERATION ROI-S04605

3-2

Table 3-1 Interface Terminals and Jacks

TERMINAL DESCRIPTION

IF IN/OUT(N-P Connector)

TX IF signal input and RX IF signal output

Danger: Do not disconnect the coaxial cable beforeturning 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)

RF signal input/output from/to antenna

Page 66: Pasolink Training Manual

ROI-S04605 OPERATION

3-3

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.

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 ODUwhen the EOW/RX LEV Monitor and headset is connected.

The X0818A EOW/RX LEV Monitor (optional) is used for operation andmaintenance as shown in Fig. 3-3. The operation range of the OW/RXLEV 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 isnot lit even after setting the OW switch to ON, replace the battery(6F22(UB)/9V).

FGIFLMONRX LEV

RX REV MON

Page 67: Pasolink Training Manual

OPERATION ROI-S04605

3-4

OW ON-OFF switch:Enables transmission of OW signal between IDU and ODU. The OWswitch 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 orderwireheadset is connected.

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

VO

LO

N OW

OF

F

12 3

450

V

PASOLINKANTENNA POINTING MONITOR

OW

RX LEV/OW IN

HEADSET

METER

OW INDICATOROW SWITCH

VOL CONTROL

RX LEV/OW IN JACKHEADSET JACK

BATTERY(6F22(UB)/9V)

Page 68: Pasolink Training Manual

Pasolink

Digital microwave radio system

Installation guide

Page 69: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

Preparation work

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

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

Equipment and Materials Sorting Sorting means assignment of equipment and materials

to each site.

Equipment and materials delivery to site

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

Page 70: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

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 2- Hybrid. 3- Two ODU’s

3- Brackets

4- IF cable

5- Connectors of the IF cable. 6- RD unit.(or suitable interface panel) 7- One IDU.

8- 2M cables and connectors

9- The power and grounding cables.

10- The installation materials

Check the frequency plan and the link calculation for the antenna diameter

Check if the ODU’s low or high frequency according to the frequency plan.

For the antenna and the hybrid

Prepare the required length of the IF cable

Prepare four pieces of that connector

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

Polts, nuts, tiewrap, terminals, tap, rupper tap….etc.

Page 71: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

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 Quantity � Tap rule 50 M. 1 � Square 150mm x 100 mm. 1 � Scriber 1 � Level A-type 450 mm. 1 � Tester . 1 � Wrench set A-type 6-24 mm 2 � Adjustable wrench 150 mm 2 � Adjustable wrench 250 mm 2 � Socket wrench kit 1 � Screw driver (-) 150 1 � Screw driver (+) NO.3 (150) 1 � Straight shank drill set (3.0 – 13.0 mm) 5 � Concrete drill set (4.8 – 18.0 mm) 5 � Drill bag 2 � Electric drill 6.5 mm (230 V) 1 � Hammer drill 19 mm (230 V) 1 � Point drill 6.4 mm (with holder) 1 � Point drill 6.4 mm 1 � Center punch 125 mm 1 � Hack saw frame 2

Page 72: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

� Hack saw 20 Description Quantity � Hammer (450 g) 1 � Set file 5 EA/set(smooth) 1 � Flat file 250 mm (second –cut) 1 � Flat file 250 mm (smooth) 1 � Crimping tool 1.25 – 8 sq. 5N18 1 � Hydraulic crimping tool 14-150 sq. 1 � Soldering iron 60 W 2 � Holder for soldering iron 2 � Tip for soldering iron 60 W 2 � Hand tool kit 4 � Step ladder 2 � Power cable reel 1 � Tool box 2 � Box end wrench 2 � Adjustable wrench 375 mm 2 � Safety helmet 5 � Safety belt 3 � Oil can 1

2-The test equipment an tools include:

Description Quantity � Digital multimeter 1 � Lap top computer ( with the appropriate software) 1 � RS232 Cable. 2 � BER Test set (for 2M channels). 2 � 2M test chords. 4 � 2M insertion termination tool. 1 � Jumpering cable(wires) for the 2M channels loopback. N/A � Hand tools kit. 1 � Step ladder. 1 � Two adjustable wrench (150 mm,250 mm) 2 � Soldering iron 60 W. 1 � Crimping tool 1.25 – 8 sq. 5N18 1 � Hydraulic crimping tool. 1 � Wrench set (6-24 mm). 1 � Box end wrench. 1 � Canvas bag. 1 � Power outlets extension. 1 � Power cable reel. 1 � Two safety belt. 2 � Black bag or equivalent for tools 1

Page 73: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

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

Page 74: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

Packing list for IDU,ODU,and ANT.:

ANTENNA DIRECT MOUNTING TYPE

MDP-( )MB-( ) SERIAL No.__________ DATE________ , _______ WEIGHT 4kg(WITH OPTION) (G2680)

NEC Corporation MADE IN JAPAN

NAME PLATE

WARNING -43V OUTPUT

TURN OFF POWER BEFORE DISCONNECTING IF CABLE

1

2

4

6

5

3

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

Page 75: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

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)

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

WALL

More than 200mmMore than one rack*

More than one rack unit*

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

Page 76: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

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.

Page 77: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

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

Page 78: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

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

Page 79: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

Terminating Coaxial (Baseband Signal) Cable with BNC Connector:

Page 80: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

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

Page 81: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

Page 82: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

Terminating Power Supply Cables with Molex Connector:

Page 83: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

WIRE STRIP LENGTH

Hand Crimping Outside diameter set Tool type of cable position 57026-5000 Φ1.5 to 1.8 1 Φ1.8 to 2.2 2 57027-5000 Φ2.3 to 2.6 1 Φ2.6 to 3.1 2

Page 84: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

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 support) 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

tarek
tarek
Page 85: Pasolink Training Manual

NEC PASOLINK installation procedure

January 2002

TERMINAL DESCRIPTION

LA PORT (D-sub Connector,15 Pins) Pin 1 Pin 3 Pin 4 Pin 5 Pin 11 Pin 12 Pin 13 Pin 15 Pin 2,8 and 14

Control/Monitoring signal input/output from/to personal computer TXDRXDRTSCTSLOCAL CTS LOCAL RTS LOCAL RXD LOCAL TXD Ground

ODUIF IN/OUT(N-P Connector)

RF IN/OUT 13 GHz PBR140 18 GHz PBR220 26 GHz PBR260 38 GHz PBR320

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.

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.

IFL Connector

ODU

Self-bonding tape

IF CABLE

ODU

Note: the self-bonding tape shall be prepared by customer.

Location of connector for waterproof

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

Page 86: Pasolink Training Manual

ROI-S04488 OPERATION

3-29

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

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

Note: The range of DC power input depends on systemrequirement.

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 setthe OPR SEL No.1-No.2 switch on the IDU to neutralposition or No.1 or No.2 to be powered up side.

When either No.1 or No.2 channel is working, set theOPR SEL No.1-No.2 switch on the IDU to the workingchannel side, then, turn on the power switch of the notworking channel.

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

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

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

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+IDU for 1+0 System

IDU for 1+1 System

No.1 Power Switch

No.2 Power Switch

Power Switch

OPR SEL No.1 - No.2 Switch

LINE IN Connector

LINE IN Connector

LINE IN Connector

Page 87: Pasolink Training Manual

OPERATION ROI-S04488

3-30

3.3.2 Shut-down

Step Procedure

1 Turn off the POWER switch on the front of the IDU.

Note: In 1+1 system, before turn off the POWER switch of No.1or No. 2 channel, check that the OPR SEL No.1 - No.2switch 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 outvia the LA PORT or NMS/RA of the IDU. Connect a Personal Computerto the IDU with an RS-232C cable. The specifications of the requiredcommunication 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*: Send line ends with line feeds : Yes

Local echo : No

• Receiving: CR : NoReturn on the right edge : YesForce 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 Download” 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)

Page 88: Pasolink Training Manual

ROI-S04488 OPERATION

3-31

The pin assignment is shown in Fig. 3-6. The cable length of RS-232Cbetween the personal computer and IDU equipment shall be less than 15m.

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 login is not possible, check if settings of thecommunication format are proper.

Caution: Do not turn on the power of the IDU leaving cableconnection between the PC and RA PORT of the IDU.

Step Procedure

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

IDU SIDE LA PORT/NMS/RA CONNECTOR

SIGNALNAME

PINNo.

2

5

431

GND

CTS

RTSRXDTXD

PERSONAL COMPUTER SIDE

SIGNALNAME

PINNo.

5

467

832

GNDDTRDSR

RTSCTSTXD

RXD

D-SUB CONNECTOR (9 PIN) D-SUB CONNECTOR (15 PIN)(BLACK)

Page 89: Pasolink Training Manual

OPERATION ROI-S04488

3-32

Note: When the controlling or setting of own station are performed,connect the cable to the LA PORT. When the controlling orsetting of opposite station are performed, connect the cable to theNMS/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 menuor entering values. “Enter” key is used for confirmationof entering values. “Esc” key is used for cancellation ofentering values and display the higher rank menu.

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

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

PERSONAL COMPUTER

IDU

RS-232C CABLE(BLACK)

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

LA PORTNMS/RA

RESET IDUODUPWR

PASOLINK

MAINT

SELV

− +

LA PORT

LA PORT

LA PORTNMS/RA

CALL

OPR

FUSE (7.5A)

FUSE (7.5A)

EOW

RX RXTXTX

OPR ALMSELNo.1

No.2

1

2−

PASOLINKRESET

RESET IDUODUPWR

PASOLINK

MAINT

SELV

− +

IDU

Page 90: Pasolink Training Manual

ROI-S04488 OPERATION

3-33

Step Procedure

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

Note: When the PC is connected to the NMS/RA terminal tocontrol the opposite station, enter password for thatstation.

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

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

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

7 To confirm the password, re-enter the password from thekeyboard and press the “Enter” key,

8 Following menu item is displayed,

Password :

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

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

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

1. Setting2. Maintenance3. Monitoring99. Exit

Select function No. :

Page 91: Pasolink Training Manual

OPERATION ROI-S04488

3-34

Step Procedure

9 Press the “1” key and “Enter” key, then, following setting menuis displayed,

Notes: 1. In item No. 1, the required bit rate is indicated in theparenthesis ( ) on “Bit rate”.

Bit rate (2x2:0 / 4x2:1 / 8x2:2 / 16x2:3) :3

Changing the bit rate will cause temporarycommunication loss. Until the bit rate of the oppositesite 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 foreach 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 areused to display the status for each channel.

“#” : signifies E1 channel which is inhibited by the hardware restriction or LAN signal transmission.

Setting1. 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 table14. Next items00. Menu99. Exit

Select item No. :

Page 92: Pasolink Training Manual

ROI-S04488 OPERATION

3-35

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) isstandard.

10 Press the “2” key and “Enter” key, then, following item isdisplayed,

Note: When AIS RCVD “status” is selected, AIS RCVD is notindicated under the input signal alarm state. When AISRCVD “alarm” is selected, AIS RCVD is indicatedunder 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 isdisplayed,

Note: When AIS SEND “status” is selected, AIS SEND is notindicated under the AIS state. When AIS SEND “alarm”is selected, AIS SEND is indicated under the AIS state.

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

14 Press the “6” key and “Enter” key, then, following item isdisplayed,

2. AIS RCVD alarm/status (status)

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

3. AIS SEND status/alarm (status)

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

6. Main channel usage 1-16(1:used 2:used 3:N/A 4:not used

5:not used 6:not used 7:not used 8:not used9:not used 10:not used 11:not used 12:not used13:not used 14:not used 15:not used 16:not used)

Select channel No. :

Page 93: Pasolink Training Manual

OPERATION ROI-S04488

3-36

Step Procedure

Notes: Set to “on” for the following channels.

1. Restricted E1 channels by hardware, which areindicated by “#”on the Setting display.

2. E1 channels which are not available to use when 10/100BASE-T(X) LAN is assigned. (see Table 3-3Applicable Traffic Channel)

3. Reserved E1 channels.

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

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

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

18 If not, press the “7” key and “Enter” key, then, following item isdisplayed,

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

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

7. BER alarm threshold (10-4)

BER alarm threshold (10-3:0 ∠ 10-4:1 ∠ 10-5:2�∠ 10-6:3):

6. Main channel usage 1-16(1:used 2:used 3:N/A 4:not used

5:not used 6:not used 7:not used 8:not used9:not used 10:not used 11:not used 12:not used13:not used 14:not used 15:not used 16:not used)

Select channel No. :

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

Page 94: Pasolink Training Manual

ROI-S04488 OPERATION

3-37

Step Procedure

20 Press the “8” key and “Enter” key, then, following item isdisplayed,

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 asthat on the MAIN BOARD at the opposite station asfollows (factory setting status):

• 2 x 2MB/4 x 2 MB : 0

• 8 x 2MB : 1

• 16 x 2MB : 2

22 Press the “9” key and “Enter” key, then, following item isdisplayed,

Note: When the WS INTFC (optional) module is provided in the16 x 2MB system, WS alarm INH is set to used.

23 Press either “0” or “1” key and the “Enter” key for setting, ifnot, press the “Esc” key,

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

25 Press the either “0” or “1” key and “Enter” key for setting, ifnot, press the “Esc” key,

Note: 232 — RS-232C provides standard 64k — 64 kbps is applicable when optional 64K INTFC isprovided.

8. Frame ID (0)

Input ID No. (0-7) :

9. WS channel usage (not used)

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

10. DSC 1 (232)

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

Page 95: Pasolink Training Manual

OPERATION ROI-S04488

3-38

Step Procedure

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

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 isdisplayed,

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

30 Enter 13 and press the “Enter” key, then, following item isdisplayed,

Note: The following display is for initial values. When theresetting of item is required, perform steps 31 to 35 forcorresponding item.

11. DSC 2 (232)

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

12. DEM invert (off)

DEM Invert (off:0 / on:1) :

Page 96: Pasolink Training Manual

ROI-S04488 OPERATION

3-39

Step Procedure

For 1+0 System

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

Notes: 1. Alarm table displayed on the LCT depends on systemconfiguration.

2. Alarms signals C1 to C4 will appear on the ALM/AUXALM terminals.C1: 1, 2 and 3 pinsC2: 4, 5 and 6 pinsC3: 7, 8 and 9 pinsC4: 10, 11 and 12 pins

13. Alarm table 1/2

1. INPUT LOSS2. AIS RCVD3. AIS SEND4. OUTPUT LOSS5. LAN INTFC ALM6. WS INPUT LOSS7. WS AIS RCVD8. WS AIS SEND9. WS OUTPUT LOSS10. TX CLK LOSS11. FSYNC ALM12. HIGH BER ALM13. LOW BER ALM14. BER ALM

Form C1OUTOUTOUT

Form C2OUTOUTOUTOUTOUT

Form C3OUTOUT

Form C4

Press any key to continue…

13. Alarm table 2/2

15. MOD ALM16. DEM ALM17. OPR ALM18. TX PWR ALM19. RX LEV ALM20. APC1 ALM21. APC2 ALM22. IF INPUT ALM23. MAINT

Form C1OUTOUTOUTOUTOUTOUTMASK

Form C2OUTOUTOUTOUTOUT

MASK

Form C3

MASK

Form C4OUT

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

Page 97: Pasolink Training Manual

OPERATION ROI-S04488

3-40

Step Procedure

3. The items which are applied alarm output are indicatedwith “OUT” and not applied alarm output areindicated with “–”.

4. Selecting item No. changes depending on the mountedmodules.

5. The outputs which are shut off the signal output inmaintenance conditions are indicated with "MASK".

For 1+1 System

12. Alarm table 1/3

1. INPUT LOSS2. AIS RCVD3. AIS SEND4. OUTPUT LOSS5. LAN INTFC ALM6. WS INPUT LOSS7. WS AIS RCVD8. WS AIS SEND9. WS OUTPUT LOSS10. TX CLK LOSS 111. TX CLK LOSS 212. RX CLK LOSS 113. RX CLK LOSS 2

C1OUTOUTOUT

C2OUTOUTOUT

C3OUTOUTOUTOUT

C4OUTOUTOUTOUT

C5

C6

Press any key to continue…

12. Alarm table 2/3

14. FSYNC ALM 115. FSYNC ALM 216. HIGH BER ALM 117. HIGH BER ALM 218. LOW BER ALM 119. LOW BER ALM 220. BER ALM 121. BER ALM 222. MOD ALM 123. MOD ALM 224. DEM ALM 125. DEM ALM 226. OPR ALM 127. OPR ALM 2

C1OUTOUT

C2OUTOUT

C3OUTOUTOUTOUTOUT

C4OUTOUTOUTOUTOUT

C5OUTOUT

C6

Press any key to continue…

Page 98: Pasolink Training Manual

ROI-S04488 OPERATION

3-41

Step Procedure

Notes: 1. Alarm table displayed on the LCT depends on systemconfiguration.

2. Alarms signals C1 to C6 will appear on the ALM/AUXALM terminals.C1: 1, 2 and 3 pinsC2: 4, 5 and 6 pinsC3: 7, 8 and 9 pinsC4: 10, 11 and 12 pinsC5: 20, 21 and 22 pinsC6: 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” ispressed, the alarm usually issued when the equipmenthad been set to maintenance mode can be disabled.

5 Selecting item No. changes depending on the mountedmodules.

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

12. Alarm table 3/3

28. TX PWR ALM 129. TX PWR ALM 230. RX LEV ALM 131. RX LEV ALM 232. APC1 ALM 133. APC1 ALM 234. APC2 ALM 135. APC2 ALM 236. IF INPUT ALM 137. IF INPUT ALM 238. MAINT39. TX SEL 140. TX SEL 241. RX SEL 142. RX SEL 243. MDP CPU ALM 144. MDP CPU ALM 2

C1OUTOUTOUT

MASKOUT

C2OUTOUTOUTMASK

OUT

C3OUTOUT

MASKOUT

C4OUTOUT

MASKOUT

C5

MASK

C6OUT

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

Page 99: Pasolink Training Manual

OPERATION ROI-S04488

3-42

Step Procedure

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

For 1+1 system

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

35 When the “1” key and “Enter” key is pressed in previous step34, following confirmation is displayed,

For 1+0 System

For 1+1 System

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

1. INPUT LOSSForm C1OUT

Form C2

Form C3

Form C4

Select Form C No. (1-4) :

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

1. INPUT LOSSC1OUT

C2OUT

C3

C4

C5

C6

Select Form C No. (1-6) :

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

1. INPUT LOSSForm C1OUT

Form C2

Form C3

Form C4

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

Select Form C No.(1-6) :1

1. INPUT LOSSC1OUT

C2OUT

C3

C4

C5

C6

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

Page 100: Pasolink Training Manual

ROI-S04488 OPERATION

3-43

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

For 1+1 System

38 Press any “1” to “4” (or “1” to “6” for 1+1) key forcorresponding Form No. and “Enter” key for setting, or “0” keyand “Enter” key for cancel,

For 1+0 System

For 1+1 System

39 Press the “2” key and “Enter” key. Repeat steps 31 to 38 foritems 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,

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

1. INPUT LOSSForm C1

Form C2

Form C3

Form C4

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

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

1. INPUT LOSSC1

C2

C3

C4

C5

C6

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

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

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

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

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

Page 101: Pasolink Training Manual

OPERATION ROI-S04488

3-50

3.4.2 Alarm and Status Monitoring of IDU and ODU

Alarm conditions are identified by the IDU indicator on the IDU. Also theworking conditions of the IDU and ODU can be monitored by the PC, asfollows:

Step Procedure

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

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

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

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

5 Press the “0” key and “Enter” key,

6 Following menu items are displayed,

7 Press the “3” key and “Enter” key, then, following menu isdisplayed,

For 1+0 System

Password :

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

1. Setting2. Maintenance3. Monitoring99. Exit

Select function No. :

Monitoring1. Monitoring voltage2. Monitoring voltage (continuance mode)3. Alarm/Status4. Inventory00. Menu99. Exit

Select item No. :

Page 102: Pasolink Training Manual

ROI-S04488 OPERATION

3-51

Step Procedure

For 1+1 System

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

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” .

Monitoring1. Monitoring voltage2. Alarm/Status3. Inventory00. Menu99. Exit

Select item No. :

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 …

Page 103: Pasolink Training Manual

OPERATION ROI-S04488

3-52

Step Procedure

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

For 1+1 System

3. Monitoring of alarm/status 2/2MOD ALM (alarm:-)DEM ALM (alarm:*)OPR ALM (alarm:*)

ODUTX PWR ALM (alarm:-)RX LEV ALM (alarm:-)APC1 ALM (alarm:-)APC2 ALM (alarm:-)IF INPUT ALM (alarm:-)

MUTE (off)TX/RX FREQ CH (5ch)

Press any key to continue …

2. Monitoring of alarm/status 1/2IDUINPUT 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 …

Page 104: Pasolink Training Manual

ROI-S04488 OPERATION

3-53

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 displayedwhen “Channel usage error (report)” is selected to“not report” .

Notes: 1. “∗” indication indicates alarm condition.2. “−” indication indicates normal condition.3. “0 ch” indication shows setting channel number.4. 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,

2. Monitoring of alarm/status 2/2MOD ALM(No.1/No.2) (alarm:-/-)DEM ALM(No.1/No.2) (alarm:-/*)OPR ALM(No.1/No.2) (alarm:-/*)MDP CPU ALM(No.1/No.2) (alarm:-/*)

ODUTX 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)

Press any key to continue …

Page 105: Pasolink Training Manual

OPERATION ROI-S04488

3-54

Step Procedure

For 1+0 System

For 1+1 System

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

For 1+0 System

Note: Only actually mounted modules may be indicated asoptional module.

Monitoring1. Monitoring voltage2. Monitoring voltage (continuance mode)3. Alarm/Status4. Inventory00. Menu99. Exit

Select item No. :

Monitoring1. Monitoring voltage2. Alarm/Status3. Inventory00. Menu99. Exit

Select item No. :

4. Inventory 1/2IDU

Serial number 123456Manufactured date MAY/2003Software version (ROM/RAM) 1.20/2.22Bit rate 16 x 2MBOption module PM CARD

LAN INTFCWS INTFC64K INTFC(G.703)64K INTFC(V11)ASC INTFCDSC INTFCALM INTFCSC LAN INTFC

Press any key to continue …

Page 106: Pasolink Training Manual

ROI-S04488 OPERATION

3-55

Step Procedure

For 1+1 System

Note: Only actually mounted modules may be indicated asoptional module.

4. Inventory 2/2ODU

Manufactured data JAN/2003Software version (ROM) 2.1Bit rate 17/34MBRF band 23GHz LowSub band AShift freq 1200 MHzCH separation 2.50 MHz

3.Inventory 1/4 IDUSW UNITSerial number 123456Manufactured date OCT/2002Software version (ROM/RAM) 1.20/2.14Bit rate 2/4/8/16 x 2MBOption panel PM CARD

LAN INTFCWS INTFC64k INTFC(G.703)64k INTFC(V.11)ASC INTFCDSC INTFCALM INTFCSC LAN CARD

Press any key to continue …

3.Inventory 2/4 IDUNo.1 MD UNITSerial number 123456Manufactured date SEP/2002Software version(ROM/RAM) 1.20/2.22

No.2 MD UNITSerial number 123457Manufactured date SEP/2002Software version(ROM/RAM) 1.20/2.22

Press any key to continue …

Page 107: Pasolink Training Manual

OPERATION ROI-S04488

3-56

Step Procedure

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

3.Inventory 3/4 ODUNo.1 ODUManufactured date JAN/2003Software version (ROM) 2.1Bit rate 17/34MBRF band 23GHz HighSub band AShift freq 1200MHzCH separation 2.50MHz

Press any key to continue …

3.Inventory 4/4 ODUNo.2 ODUManufactured date SEP/2002Software version (ROM) 2.1Bit rate 17/34MBRF band 23GHz HighSub band AShift freq 1200MHzCH separation 2.50MHz

Press any key

Monitoring1. Monitoring voltage2. Monitoring voltage (continuance mode)3. Alarm/Status4. Inventory00. Menu99. Exit

Select item No. :

Page 108: Pasolink Training Manual

ROI-S04488 OPERATION

3-57

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 theIDU using an RS-232C cable as shown in Fig. 3-7,

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

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

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

5 Press the “0” key and “Enter” key,

6 Following menu items are displayed,

Password :

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

1. Setting2. Maintenance3. Monitoring99. Exit

Select function No. :

Page 109: Pasolink Training Manual

OPERATION ROI-S04488

3-58

Step Procedure

7 Press the “3” key and “Enter” key, then, following menu isdisplayed,

For 1+0 System

For 1+1 System

8 Press the “1” key and “Enter” key, then, following item isdisplayed,

Note: The voltages shall be indicated within the values shown inTable 3-4 in normal,

For 1+0 System

For 1+1 System

Monitoring1. Monitoring voltage2. Monitoring voltage (Continuance mode)3. Alarm/Status4. Inventory00. Menu99. Exit

Select item No. :

Monitoring1. Monitoring voltage2. Alarm/Status3. Inventory00. Menu99. Exit

Select item No. :

1. Monitoring voltage Transmitter power : 4.33V (-1 dB) Receiving level : 3.55V (-32 dBm)

1. Monitoring voltageTransmitter power 1 : 4.33V (-1 dB)Receiving level 1 : 2.98V (-46 dBm)Transmitter power 2 : 4.33V (-1 dB)Receiving level 2 : 2.18V (-66 dBm)

Page 110: Pasolink Training Manual

ROI-S04488 OPERATION

3-59

Step Procedure

9 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

For 1+1 System

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 areas follows:

• G6583 • G6584 • G6585 • G6586• H0738 • H0739

Monitoring1. Monitoring voltage2. Monitoring voltage (Continuance mode)3. Alarm/Status4. Inventory00. Menu99. Exit

Select item No. :

Monitoring1. Monitoring voltage2. Alarm/Status3. Inventory00. Menu99. 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)