6
1.4
Options
Supports the Pay Tone service of the central office. While having
a conversation with an outside party, your central office generates
the pay tone so that the counting for fee starts for the call.
Pay Tone Card (KX-TD189)
One KX-TD280 can be installed per system.
2-ISDN S0 Line Unit (KX-TD280)
D1232
D1232
DIGITAL SUPER HYBRID SYSTEM
Panasonic
Panasonic
2 ISDN S0 lines
can be added.
2.4
Installation of Optional Cards and Units
2-ISDN S0 Line Unit Connection
To add two ISDN S0 lines, use the optional 2-ISDN S0 Line Unit
(KX-TD280). This unit can be installed in any of the expansion
areas provided on the front of the main unit.
The following procedures can be used to install the 2-ISDN S0 Line
Unit (KX-TD280). System programming is required for unit
location identification.
Default
KX-TD816: bottom = 4-CO Line Unit,
top = 8-Station Line Unit
KX-TD1232: bottom = 4-CO Line Unit,
middle and top = 8-Station Line Unit
Panasonic
Panasonic
D816
D816
DIGITAL SUPER HYBRID SYSTEM
2 ISDN S0 lines
can be added.
