
Cable Pin Assignments
B-2
7925-A2-GB20-30
PRELIMINARY DRAFT
June 1997
If your PC’s COM port requires a 25-pin D-shell connector, the cable must use
the following pin assignments.
97-15442
1
4
5
7
8
2
3
7
6
8
20
4
5
Modular
Pin
25-Pin
D-Shell Pin
HDSL Loop Connection Cable Pin Assignments
The HDSL modular connector that plugs into the rear panel of the unit has the
following pin assignments.
Pin
Signal
1
Loop A Tip
2
Loop A Ring
3
Loop B Tip
4
Loop B Ring
5 – 8
unused
NOTE:
Pin 1 is on the left when viewing the jack from its inserted position.