6
1. Insert the modular plugs of the ISDN (BRI) CO line cords (8-conductor wiring) into the ISDN (BRI)
ports 1 and 2.
2. Connect the line cords to the terminal board or the modular jacks from the Central Office.
CO Line Connection
To Terminal Board or
Modular Jacks from
the Central Office
ISDN (BRI)
Port 1
ISDN (BRI)
Port 2
ISDN (BRI)
Port 3
TA RA RB TB
•
When making a point-to-multipoint connection, we recommend you use
connection A above because your system has a terminal register (TR) included.
When making connection B, please consult your dealer to remove the TR in your
system.
Terminal
Equipment 7
Terminal
Equipment 1
To Central Office
Network
Termination
A. When your system is at the end of the connection
Terminal
Equipment 7
Terminal
Equipment 1
To Central Office
Network
Termination
TR
B. When your system is not at the end of the connection
Connections
