Technical Specifications
114200 Rev. A
C-11
ISDN BRI S/T 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 to
the ISDN network over a terminal adapter through an S/T interface.
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.
Table C-9
lists the ISDN interface pin assignments.
Table C-9.
ISDN BRI S/T Interface Pin Assignments
Pin Assignment
Pin No.
Signal
1
Not used
2
Not used
3
Tx+ (Transmit to wire)
4
Rx+ (Receive from wire)
5
Rx- (Receive from wire)
6
Tx- (Transmit to wire)
7
Not used
8
Not used
1 2 3 4 5 6 7 8