15
Key telephone wiring problems
1. If the key telephone has no response when you press any of its key:
The extension port that the key telephone is plugged into needs to be programmed as a Key
Telephone extension. This can be done by using the con
fi
guration program on a personal
computer or from the System Manager’s extension.
2. If the key telephone does not operate at all:
The key telephone WILL NOT work if the polarity is Reversed! The polarity of the White/
Orange, Orange/White wires is VERY IMPORTANT. If the key telephone does not work,
try changing the positions of the White/Orange, Orange/White wires on that key telephone’s
extension port jack.
Key Telephone Wiring
G
Y
R
B
White/Blue or
Green Wire
Blue/ White or
Red Wire
Cable
Y
G
B
R
Line
Cord
Line
Cord
White/Orange
or Black Wire
Orange/White
or Yellow Wire
Telephone Equipment
(BBS IPS Unit Location)
Extension Location
(Offi
ce or Room)
Installing Your Phone System Unit
Chapter
2
- Installation Guide
