Installation
64
Installation Manual
2.5.4
Expanding the ISDN (BRI) Line Connection
After installing the BRI Expansion Card (KX-TD61280), 2 CO lines or 8 ISDN extension lines
can be connected on ISDN (BRI) port 3 (default: Extension). To use for ISDN extension lines,
some System Programming and hardware changes are required beforehand.
When making a line connection, use an ISDN line cord (straight type) for installation. Insert
the modular plug of the ISDN line cord (8-conductor wiring) into ISDN port 3 on the system.
•
System Programming is required depending on the port type.
CO line:
—[422] ISDN Port Type (Default: Port 1,2 — CO/Port 3 — Extension)
—[423] ISDN Layer 1 Active Mode (Default: Port 1,2 — Permanent/Port 3 — Call)
—[424] ISDN Configuration (Default: Port 1,2 — Point/Port 3 — Multipoint)
—[425] ISDN Data Link Mode (Default: Port 1,2 — Permanent/Port 3 — Call)
—[426] ISDN TEI Mode (Default: Port 1,2 — Fix 0/Port 3 — Automatic)
Extension line:
—Default Setting
•
Refer to section 2.4.1
ISDN CO Line Connection for the wire specifications.
•
Mis-connection may cause the system to operate improperly. See section 2.2.5
ISDN
(BRI) CO Line Connection Structure and section 3.1.2
Connection.
To Modular Jacks of
Network Termination
or ISDN Extensions
ISDN(BRI)
Port 1
ISDN (BRI)
Port 2
ISDN (BRI)
Port 3
View of TEL Jack for CO Line
TA RA RB TB
View of TEL Jack for
ISDN Extension Line
RA TA TB RB
OR
