Polarity Sensitive Telephone Connection - Panasonic KXTA308 - ANALOG PBX Installation Manual

2.3.8

Polarity Sensitive Telephone Connection

Outside (CO) Line
Reverse here
Outside (CO) Line
Reverse here
If the telephone is polarity sensitive, follow the procedure below:
Extension
1 2 3
4 5 6
7 8 9
0
Extension
1 2 3
4 5 6
7 8 9
0
1. Complete all the required extension
wiring.
2. Confirm that dialing can be done from all
the extensions using a touchtone
telephone.
If dialing fails, the polarity between the
extension and the system must be
reversed.
3. Reverse as shown.
4. Unplug the system.
5. Connect all outside (CO) lines.
6. Confirm that dialing can be done on the
following extension using a touchtone
telephone.
Extension (T, R) of jack 01: Outside
(CO) line 1
If dialing fails, the polarity between the
system and the outside (CO) line must be
reversed.
7. Reverse as shown.
8. Every time an extension telephone is
replaced, repeat the procedure above.
Installation 2-17