System Installation Manual
Digital Key Telephone System
22
DV
5.2
CO LINE INSTALLATION
Aristel Networks Pty Ltd
23
RJ12 Socket
Figure 11: CO line installation
RJ12 Socket
6 pin RJ12 Connector
pins 3 & 4 for Line 1, pins 1 & 6 for Line 2
4 pin RJ12 Connector
pins 3 & 4 for Line 1, pins 2 & 5 for Line 2
WARNING: Do not use 4 wire telephone
line cord to connect CO lines straight into
RJ12 socket – use 2 wire line cord