The 8400-Series Voice Terminals Instructions for Installation, Switch,
Administration, and Programming the Options
555-015-725
Issue 1
October 1996
Installing Your Voice Terminal
Page 3-2
Wiring Information
3
Figure 3-1.
A Voice Terminal Line Jack
Table 3-1.
Line Interface
Pin
Pair
Name
Description
1
2
OD1
4-Wire Output
2
2
OD2
4-Wire Output
3
3
ID1
4-Wire Input
4
1
U-T
2-Wire (Tip)
5
1
U-R
2-Wire (Ring)
6
3
ID2
4-Wire Input
7
4
P1-
Adjunct Power –48V
8
4
P2+
Adjunct Power Common
1 2 3 4 5 6 7 8
