Installation
2-17
2.3.3
Extension Connection
for Digital Proprietary Telephones, Single Line Telephones and DSS Console
(KX-TD816: Jack 1 through Jack 8, KX-TD1232: Jack 1 through Jack 16)
Digital Proprietary Telephone Connection
With the KX-T7220, KX-T7230, KX-T7235, and KX-T7250 model
digital proprietary telephones, 4-conductor wiring is required for
each extension. Connect pins “L” and “H” only. (“A” and “B” are
only needed for Paralleled Telephone or XDP operation.)
Single Line Telephone Connection
With the single line telephones, 2-conductor wiring is required for
each extension. Connect pins “A” and “B”.
DSS Console Connection
A maximum of four DSS Consoles, model KX-T7240, can be
installed per system. The DSS Console must be connected in
parallel with any proprietary telephone. System Programming is
required to designate paired jack numbers of DSS Consoles and
proprietary telephones. With the KX-T7240 model DSS Console,
4-conductor wiring is required for each extension. Connect pins
“L” and “H” only. (“A” and “B” are not necessary.)
Station Wiring (3-pair twisted cabling) :
50-Pin Connector
Block Terminal
1
2
3
4
5
6
26
1
27
2
28
3
6
5
4
3
2
1
Green
Red
Black
Yellow
White
Blue
1
2
3
4
5
6
Line cord
Bridging Clips
Notes
†
“8EXTN” in the table indicates an extension expansion area for KX-
TD1232. There are three expansion areas on the main unit of KX-
TD1232. Up to two 8-Station Line Units and a 4-CO Line Unit can be
installed to any area. It is required to designate which is 8-Station Line
Unit 1 and which is 2 by system programming.
• If a telephone or answering machine with an A-A1 relay is connected to
the main unit, set the A-A1 relay switch of the telephone or answering
machine to OFF position.
