Paradyne 7924 - Manual (Page 49)

Cable Pin Assignments
B-3 7924-A2-GB20-30 October 1997
T1 Network Connection Cable Pin Assignments
The modular connector that plugs into the rear panel of DSX-1-compatible units
has the following pin assignments.
Pin Signal
1 Tx Ring
2 Tx Tip
3 open
4 Rx Ring
5 Rx Tip
6 – 8 open
NOTE:
Pin 1 is on the left when viewing the jack from its inserted position.