Voice Interface Cards
ISDN BRI Interface Cards
12
OL-12847-01
Step 2 Connect one end of a straight-through RJ-45-to-RJ-45 cable to the RJ-45 port on the card. (See
Figure 93.)
Figure 93 Connecting the 2-Port ISDN BRI Card
Note When the interface is configured as NT and is connecting to a TE device, the cable must have
the transmit and receive pins swapped (crossover cable). See Table 25.
Step 3 Connect the other end of the cable to the RJ-45 wall outlet or other device.
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
41198
Straight-through
RJ-45-to-RJ-45 cable
S/T port
Table 25 Interface Pin Numbers and Functions
ISDN BRI NT/TE Card NT Interface
1
1. Use a straight-through cable for NT interfaces.
TE Interface
2
2. Use a crossover cable for TE interfaces.
Pin 3/T+ Pin 3/R+ Pin 3/T+
Pin 4/R+ Pin 4/T+ Pin 4/R+
Pin 5/R- Pin 5/T- Pin 5/R-
Pin 6/T- Pin 6/R- Pin 6/T-
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