Technical information

Technician’s Handbook
204
E&M Trunk Card Settings
Set switches S-1 to S-8 on the E&M trunk module (1 = closed = on, 0 =
open = off, x = don’t care).
Table 33: E&M Trunk Module Switch Settings
Function Switches
1 2 3 4 5 6 7 8
PBX to Line Gain
3 dB 0 X X X X X X X
-13 dB 1 X X X X X X X
Line to PBX Gain
-4 dB X 0 X X X X X X
-11dB X 1 X X X X X X
Termination
600 ohm X X 1 0 X X X X
Complex X X 0 1 X X X X
Transmission
2-wire X X X X 1 X X X
4-wire X X X X 0 X X X
Signaling
Type 1 X X X X X 1 X X
Type 5 X X X X X 0 X X