
Passport 5430 Technical Specifications
306308-A Rev 00
A-7
ISDN BRI U 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 directly to the ISDN network through the 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 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 U interface pin assignments.
Table A-5.
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
Not used
7
Not used
8
Not used
1 2 3 4 5 6 7 8