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-