Modem A & B (J7 & J11) G703/Rs422 Serial Universal Interface W/Scsi Connectors - Comtech EF Data Radyne RCS11 Installation And Operation Manual

RCS11 1:1 Redundancy Switch
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5.5.2 MODEM A & B (J7 & J11) G703/RS422 Serial Universal Interface
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
RS422 Synchrounous, G703, IDR and IBS data information from the modems. Refer to Table 5-
5 for pinouts.
Table 5-5 J7 & J11 MODEM A (68-Pin Female High Density Connector)
Pin No.
1
2
3
4
5
6
7
8
9
MN-RCS11 – Revision 9
Receive Data (A) -
Request To Send (A) -
Receive Timing (A) -
Cllear To Send (A) -
Data Mode (A) -
Receive Ready (A) -
External Clock (A) -
Receive Octet (A) -
Terminal Timing (A) -
Transmit Octet (B) +
Send Data (B) +
Send Timing (B) +
Receive Data (B) +
Request To Send (B) +
Receive Timing (B) +
Clear To Send (B) +
Data Mode (B) +
Receive Ready (B) +
External Clock (B) +
Receive Octet (B) +
Terminal Timing (B) +
G.703 Send Data (A) -
Synch Data Send Data (A) -
IDR ESC Backward Alarm 1
G.703 Insert Data Input (A) -
Synch Data Send Timing (A) -
IDR ESC Backward Alarm 1
Synch Data Terminal Timing (A) -
IDR ESC Backward Alarm 2
G.703 Drop Data Out (A) - / Synch Data Receive Timing (A)-
Output
Input
Output
Output
Output
Output
Input
Output
Input
Input
Input
Output
Output
Input
Output
Output
Output
Output
Input
Output
Input
Description
Connector Pinouts
Signal
Output
Output
Common
Output
Input
Normally Open
Output
Normally Closed
Input
5–4