Operating instructions

Electrical Interfaces RCS20 M:N Redundancy Switch
5-12 TM056 - Rev. 2.3
J9- G.703 (Balanced)
J9 is the G.703 (Balanced) 15-pin data connector. The pinouts are shown below.
Table 5-10.
J9 - G.703 (Balanced) 15-Pin Female ‘D’ Connector
Pin No. Signal Name Signal Direction
1 Send Data A (-) SD-A Input
9 Send Data B (+) SD-B Input
7 External Clock A (-) BAL EXC-A Input
8 External Clock B (+) BAL EXC-B Input
3 Receive Data A (-) RD-A Output
11 Receive Data B (+) RD-B Output
12 Drop Data Out A (-) DDO-A Output
5 Drop Data Out B (+) DDO-B Output
13 Insert Data In A (-)/EXC A (-) IDI-A Input
6 Insert Data In B (+)/ESC B (+) IDI-B Input
J10 - Sync Data
J10 is the 37-pin synchronous data connector located on the Universal Interface Module. The
pinouts are shown below in Table 5-11.
Table 5–11.
J10 - Sync Data RS422/RS485/V.35 - 37-Pin Female
Pin Number Signal Description Direction
3 TXO -A Transmit Octet A (-) Input
21 TXO -B Transmit Octet B (+) Input
4 SD-A Send Data A (-) Input
22 SD-B Send Data B (+) Input
5 ST-A Send Timing A (-) Output
23 ST-B Send Timing B (+) Output
6 RD-A Receive Data A (-) Output
24 RD-B Receive Data B (+) Output
7 RS-A Request to Send A (-) Input
25 RS-B Request to Send B (+) Input
8 RT-A Receive Timing A (-) Output
26 RT-B Receive Timing B (+) Output
9 CS-A Clear to Send A (-) Output