Installation
38
Installation Manual
3.
Connect the line cord from the ISDN (BRI) port 1 to the terminal board or the modular jack
from the Central Office.
Connect the line cord from the ISDN (BRI) port 2 to the ISDN extensions.
•
System Programming is required for ISDN (BRI) port 2.
•
[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)
•
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 Terminal Board or
Modular Jacks from
the Central Office, 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