Comtech EF Data CRS-311 - Manual (Page 173)

CRS-311 1:1 Redundancy Switch Revision 7
Appendix B MN/CRS311.IOM
B–5
B.2.2 CRS-325 – G.703 Balanced Connector (DB-15F)
Table B‐5 indicates the pinout for the DB‐15F G.703 Balanced User Interface connector: “J6” on
the CRS‐325 TMI.
Table B-5. “J6” G.703 Balanced User Data Connector
Pin # Signal Description Name Direction
1 Tx, Drop Data Input (-) (see Note) DDI– In
9 Tx, Drop Data Input (+) (see Note) DDI+ In
2 Ground GND
10 Not Used
3 Rx, Insert Data Output (-) (see Note) IDO– Out
11 Rx, Insert Data Output (+) (see Note) IDO+ Out
4 Ground GND
12 Drop Data Output (-) DDO– Out
5 Drop Data Output (+) DDO+ Out
13 Insert Data Input (-) IDI– In
6 Insert Data Input (+) IDI+ In
14 Not Used
7 Not Used
15 Not Used
8 Not Used
Note: Use for all non‐Drop and Insert and T2/E2 balanced applications.