Site Preparation
To
PBX
To
Base Stations
Four-wire digital interface
The wiring diagram below shows the connections required for a four- wire interface (CPF316). Each Interface Module of this type requires two backboards which will
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 10 11 12 |
B 
A
Receive (RX)
To PBX
Telephone Ports
Pair
Transmit (TX)
From PBX
Telephone Ports
Pair
Pair 17 - Unused
Power Pairs
Base Stn.
Data Pairs
Bast
PN: | 31 |