Nortel Networks Passport ARN Routers Manuale Utente
ARN Technical Specifications
114200-E Rev 00
C-11
ISDN BRI U Interface
The ARN supports the BRI standard for ISDN using an optional ISDN/BRI
adapter module. The integrated ISDN BRI functionality allows you to connect
directly to the ISDN network, through a U interface, as opposed to connecting
over a terminal adapter. This solution reduces equipment costs and simplifies
connection to an ISDN switch.
adapter module. The integrated ISDN BRI functionality allows you to connect
directly to the ISDN network, through a U interface, as opposed to connecting
over a terminal adapter. This solution reduces equipment costs and simplifies
connection to an ISDN switch.
The BRI implementation supports two dial service applications: dial-on-demand
and dial backup. Configuring Dial Services describes these services and how to
configure them for connection to an ISDN network.
and dial backup. Configuring Dial Services describes these services and how to
configure them for connection to an ISDN network.
lists the ISDN interface pin assignments.
Table C-8.
ISDN BRI U Interface Pin Assignments
Pin Assignment
Pin No.
Signal
1
Not used
2
Not used
3
Not used
4
TIP
5
RING
6
No used
7
Not used
8
Not used
1 2 3 4 5 6 7 8