Comtech EF Data CRS-300 - Manual (Page 69)

CRS-300 1:10 Redundancy Switch MN/CRS300.IOM
Switch Connectors and Pinouts Revision 19
3–15
3.2.2.11 Quad E1 Connectors, DB-9F (CRS-365D)
See Table 3-14 for the DB-9F connector pinouts for the Quad E1 User Data Interface connectors
– “J2” and “J3” on the CRS-365D TMI.
Table 3-14. Quad E1 Connector Pair Pinouts
Pin
Signal Function Ref Des
Direction
J2 | Ports 1 & 2 J3 | Ports 3 & 4
5 Port 1 Tx(+) Port 3 Tx(+) In
9 Port 1 Tx(-) Port 3 Tx(-) In
4 Port 1 Rx(+) Port 3 Rx(+) Out
8 Port 1 Rx(-) Port 3 Rx(-) Out
3 Ground Ground ---
7 Port 2 Tx(+) Port 4 Tx(+) In
2 Port 2 Tx(-) Port 4 Tx(-) In
6 Port 2 Rx(+) Port 4 Rx(+) Out
1 Port 2 Rx(-) Port 4 Rx(-) Out