Installation
Installation Manual
59
2.5.3
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
CO Line Connection for the wire specifications.
•
Mis-connection may cause the system to operate improperly. See section 2.2.5
(BRI) CO Line Connection Structure and section 3.1.2
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
