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3.1 ISDN Network Outline
3.1 ISDN Network Outline
3.1.1 Overview
To use the ISDN Line Service, the following unit can be installed to the KX-TD816 and KX-
TD1232.
2-ISDN S0 Line Unit (KX-TD280)
This unit adds two Basic Rate Interface (BRI) ISDN S0 lines. One KX-TD280 can be
connected to the KX-TD816 and KX-TD1232.
6-ISDN S0 Line Unit (KX-TD286)
This unit adds six Basic Rate Interface (BRI) ISDN S0 lines. One KX-TD286 can be connected
to the KX-TD816 and KX-TD1232.
When the KX-TD286 is installed in the KX-TD816, only four ISDN S0 lines are available for
outside lines and the other ports are for extension lines (ISDN extensions).
Primary Rate Interface ISDN Expansion Unit (KX-TD290)
This unit adds one Primary Rate Interface (PRI) ISDN line. This unit can be only installed to
the KX-TD1232 Master system.
When this unit is installed to the system, the maximum number of available outside lines is
limited to 42. Outside lines 13 through 24 will become unavailable if the Slave system is
operating.
One PRI ISDN line adds 30 outside lines (outside lines 25 through 54) to the system.
Notice
• The ISDN Line Units (KX-TD280, KX-TD286, KX-TD290) are in accordance with the
European Telecommunication Standards (ETS).
If your telephone company provides an ISDN service which follows the standards other
than ETS, some ISDN features in the Features Guide may not work properly. (E.g. Charge
Fee Reference, CLIP, COLP, etc.)
• To use the point-to-multi-point configuration with the KX-TD286, the number on the name
plate, which is on the back of the unit, must be
• ISDN Interface
ISDN provides the following two interfaces.
Basic Rate Interface (BRI):
BRI provides two 64 kbps B channels for voice/data transmission and one 16 kbps D
channel for signalling (2B + D).
Primary Rate Interface (PRI):
PRI provides thirty 64 kbps B channnels for voice/data transmission and one 64 kbps D
channel for signalling (30B + D).
116
or later.
ISDN Installation
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