1 - INSTALLATION AND COMMISSIONING

1.3.2.3 - G.703 2 Mbit/s Synchronization port

"SYNC" Interface

 

 

 

 

 

 

Ports

Two G.703 2MHz external synchronization inputs (T3) and one G.703 2MHz

 

 

 

clock output (T4) compliant with ITU-T G.703 Recommendation

 

 

 

(§ 10.3 for input port, § tab.10 for output port)

Bit rate

2,048 Mbit/s ± 50 ppm,

 

Impedance

120 Ω balanced,

 

Connector

Female 9-way HE5 (120 Ω).

 

 

 

 

5

 

 

 

1

 

 

 

 

 

 

 

 

 

9

 

 

 

6

 

 

 

 

 

 

 

Pin N°

 

Signal name

Comments

 

 

 

 

 

 

 

1

 

 

GND

Ground

 

 

6

 

TX1 RING (T4-)

Output T4-1 (cold point)

 

2

 

 

TX1 TIP (T4+)

Output T4-1 (hot point)

 

 

 

 

 

 

 

 

7

 

RX2 TIP (T3+)

Input T3-2 (hot point)

 

 

 

 

 

 

 

3

 

 

RX1 TIP (T3+)

Input T3-1 (hot point)

 

 

 

 

 

 

 

 

8

 

RX1 RING (T3-)

Input T3-1 (cold point)

 

 

 

 

 

 

 

4

 

 

RX2 RING (T3-)

Input T3-2 (cold point)

 

 

 

 

 

 

 

 

9

 

NC

Reserved

 

 

 

 

 

 

 

5

 

 

NC

Reserved

NOTA : The shielding of the connector case is connected to the subrack front panel ground

1.3.2.4 - G.703, 21 x 2 Mbit/s traffic port

"E1 INPUT" and "E1 OUTPUT" Interface

ports

21 x 2 Mbit/s traffic ports compliant with the ITU-T G.703 Recommendation

 

(§ 6.3 for input port, § tab.6 for output port)

Bit rate

2,048 Mbit/s ± 50 ppm,

Code

HDB3,

Impedance

120 Ω balanced,

Connector

SUB D HD female 44 pins supporting L907 cable (21 ports).

This interface uses two connectors : E1 INPUT connector for inputs (named RX) and E1 OUTPUT connector for outputs (named TX)

15

1

30

16

44

31

Installation and User Guide - N56717020101

Page A1-10

No reproduction or communication without the written consent of SAGEM SA

Page 18
Image 18
Sagem ADR 155C manual 2.3 G.703 2 Mbit/s Synchronization port, 2.4 G.703, 21 x 2 Mbit/s traffic port, Sync Interface