
Installing and Operating the Passport 5430 Multiservice Access Switch
A-8
306308-A Rev 00
ISDN BRI S/T Interface
The Passport 5430 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 three dial service applications: dial-on-demand,
dial backup, and bandwidth-on-demand. Configuring Dial Services describes
these services and how to configure them for connection to an ISDN network.
lists the ISDN BRI S/T interface pin assignments.
Table A-6.
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