Black Box COMPACT T1 MT850A - Manual (Page 454)

12-10 Compact T1 - Release 6.1
Quad T1 Card
Connector Pinouts
RJ-48 Connector
There are four RJ-48C (female) connectors on the front of the Quad T1 Card.
The pinouts are as follows:
Pin Name Description
1 Receive Ring Receive from DS1 network
2 Receive Tip Receive from DS1 network
3 n/c Not connected
4 Transmit Ring To DS1 network
5 Transmit Tip To DS1 network
6 - 7 n/c Not connected
8 Chassis Ground
1 8