Comtech EF Data RCS11 - Manual (Page 73)

RCS11 1:1 Redundancy Switch Connector Pinouts
MN-RCS11 – Revision 9 5–15
11 Terminal Timing B (+) Input
12 Send Timing B (+) Output
13 Clear T Send B (+) Output
14 Send Data B (+) Input
15 Send Timing A (-) Output
16 Receive Data B (+) Output
17 Receive Timing A (-) Output
18, 21, 25 NC NA
19 Request To Send B (+) Input
20 Data Terminal Ready A (-) Input
22 Data Mode B (+) Output
23 Data Terminal Ready B (+) Input
24 Terminal Timing A (-) Input
5.8.2 MODEM A & B (J7 & J11) Universal Interface, G703/Synchrounous
Data w/SCSI connectors
The Modem Channel a Port is a 68-Pin High-Density Female SCSI Connector. This port is the
data interface used to connect to the primary and backup modems. This interface supplies the
Synchrounous, G703, IDR and IBS data information from the modems. Refer to Table 5-19 for
pinouts.
Table 5-19 J7 & J11 MODEM A (68-Pin Female High Density Connector)
Pin No. Description Signal
1 G.703 Send Data (A) - Output
2 Synch Data Send Data (A) - Output
3 IDR ESC Backward Alarm 1 Common
4 G.703 Insert Data Input (A) - Output
5 Synch Data Send Timing (A) - Input
6 IDR ESC Backward Alarm 1 Normally Open
7 Synch Data Terminal Timing (A) - Output
8 IDR ESC Backward Alarm 2 Normally Closed
9 G.703 Drop Data Out (A) - / Synch Data Receive Timing (A)- Input
10 IDR ESC Backward Alarm 3 Common
11 G.703 Insert Data Out (A) - Synch Data Receive Data (A) Input
12 IDR ESC Backward Alarm 3 Normally Open
13 External Clock (A) - Output
14, 48, 57 Ground GND
15 IDR ESC Audio Input Channel 1 (A) - Output
16 IDR ESC Audio Input Channel 2 (A) - Output
17 IDR ESC Audio Output Channel 1 (A) - Input