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3.2 ISDN Line Connection
124 ISDN Installation
KX-TD1232
One ISDN Line Unit (KX-TD280 or KX-TD286) and/or one PRI ISDN Line Unit (KX-
TD290) can be installed to any expansion area.
The KX-TD290 can be installed with the KX-TD280 or KX-TD286, but not with the analogue
outside line unit. If you use the KX-TD170 or KX-TD174 with the KX-TD290, you must use
the KX-TD170- or KX-TD174- . The former unit does not work properly with the KX-
TD290.
Please see the back of the unit and check " " is marked.
Note
• System Programming is required for expansion unit location.
<SYS PRG [109]>
Default : Area 1 = 4-CO Line Unit
Area 2 and 3 = 8-Station Line Unit
• When starting the system for the first time or performing System Data Clear, the location
application will use the actual installation settings instead of the system default settings.
• Either one KX-TD280, one KX-TD286 or one KX-TD180 can be installed in a system.
• For unit combinations, refer to Section 1.4.2 Expansion Unit Combination.
MODEL NO.KX-TD170
Example
Expansion
area 2
Expansion
area 3
Expansion
area 1
Expansion Unit
Connectors
Remove the front
cover plate(s).
2-ISDN S0 Line Unit, KX-TD280
or
6-ISDN S0 Line Unit, KX-TD286
This unit can be installed with the
KX-TD280 or KX-TD286, or
individually.
One of the following ISDN line unit
One Primary Rate Interface ISDN Expansion Unit,
KX-TD290
Panasonic
D1232