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Cisco 1751 Voice-over-IP Quick Start Guide
78-11259-05
Installing WAN and Voice Interface Cards
The card is illustrated in Figure 6.
Figure 6 2-Port ISDN BRI Card Front Panel
Connecting the 2-Port ISDN BRI Card
Use the straight-through RJ-45 cable to connect the 2-port ISDN BRI card to the ISDN network through
a telephone wall outlet.
Caution To prevent damage to the router, be sure to connect the BRI cable to the BRI connector only and not to
any other RJ-45 connector.
Step 1 Confirm that the router is still turned off.
Step 2 Connect one end of a straight-through RJ-45-to-RJ-45 cable to the card’s RJ-45 port. (See Figure 7.)
Figure 7 Connecting the 2-Port ISDN BRI Card
51075
VIC
2B-NT/TE
B1
B2
OK
SEE
MANUAL
BEFORE
INSTALLATION
ISDN BRI S/T 1
ISDN BRI S/T 0
RJ-45 ports
RJ-45 ports
VIC
2B-S/T TE
B1
B2
OK
SEE
MANUAL
BEFORE
INTALLATION
ISDN BRI S/T 1
ISDN BRI S/T 0
NT1 device
51076
Straight-through
RJ-45-to-RJ-45 cable
S/T port