Cisco 1601 - Router - EN Hardware Installation Manual page 126

ISDN BRI Interface Cards
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
To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,
Caution
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
VIC
2B-NT/TE
Figure 92
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.
The ISDN BRI restrictions in this section do not apply to the Cisco 1751, Cisco 1760, or Cisco ICS 7750
Note
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.
If slot 0 is unoccupied, the system treats it as a pair of analog voice ports.
Note
OL-12847-01
10
2-Port ISDN BRI Card Front Panel (VIC-2BRI-NT/TE)
RJ-48C ports
B1
B2
OK
ISDN BRI S/T 1 ISDN BRI S/T 0
2-Port ISDN BRI Card Front Panel (VIC2-2BRI-NT/TE)
B1
B2
OK
ISDN BRI S/T 1 ISDN BRI S/T 0
Figure 91 and Figure 92.
SEE
MANUAL
BEFORE
INSTALLATION
SEE
MANUAL
BEFORE
INSTALLATION
Voice Interface Cards