Voice Interface Cards
ISDN BRI Interface Cards
10
OL-12847-01
The Cisco 1751 and Cisco 1760 routers, and the Cisco ICS 7750 platform support both ISDN BRI
NT/TE voice interface cards. You can install these cards in any interface card slot in these platforms.
These platforms do not support the ISDN BRI S/T voice interface card.
The ISDN BRI NT/TE cards are illustrated in
Figure 91
and
Figure 92
.
Caution
To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,
connect the 2-port ISDN BRI card (VIC2-2BRI-NT/TE) only to intra-building or non-exposed wiring or
cabling. The intrabuilding cable must be shielded and the shield must be grounded at both ends.
Figure 91
2-Port ISDN BRI Card Front Panel (VIC-2BRI-NT/TE)
Figure 92
2-Port ISDN BRI Card Front Panel (VIC2-2BRI-NT/TE)
ISDN BRI Card Considerations
Note
Cisco ISDN BRI interface cards support voice ISDN traffic only.
Note
The ISDN BRI restrictions in this section do not apply to the VIC2-2BRI-NT/TE voice interface cards.
Note
The ISDN BRI restrictions in this section do not apply to the Cisco 1751, Cisco 1760, or Cisco ICS 7750
platforms.
To use all four voice channels, you must install the ISDN BRI card in slot 0 of a two-slot voice network
module (NM-2V). Slot 1 should remain empty.
Note
If slot 0 is unoccupied, the system treats it as a pair of analog voice ports.
35573
VIC
2B-NT/TE
B1
B2
OK
SEE
MANUAL
BEFORE
INSTALLATION
ISDN BRI S/T 1
ISDN BRI S/T 0
RJ-48C ports
89037
SEE
MANUAL
BEFORE
INSTALLATION
B1
B2
OK
ISDN BRI S/T 1
ISDN BRI S/T 0
VIC2-
2BRI-NT/TE