5
Cisco 1751 Voice-over-IP Quick Start Guide
78-11259-05
Installing WAN and Voice Interface Cards
Figure 3
Connecting VICs to the Network
When you are finished, reinstall any network interface cables you removed and turn on power to the
router.
Connector Pinouts for FXS, FXO, and E&M VICs
Figure 4
shows the wiring patterns for FXS and FXO VIC connectors, and
Table 1
lists the FXS and FXO
pinouts.
Note
Pins that are not used should not be connected.
Figure 4
RJ-11 Wiring for FXS and FXO Connectors
SEE MANUAL BEFORE INSTALLATION
VIC
E&M
IN USE
IN USE
1
0
SEE MANUAL BEFORE INSTALLATION
VIC
FXO
IN USE
IN USE
1
0
SEE MANUAL BEFORE INSTALLATION
VIC
FXS
IN USE
IN USE
1
0
PBX
FXS VIC
FXO VIC
E&M VIC
10691
Table 1
FXS and FXO Pinouts
Pin
Signal
1
–
2
–
3
Ring
4
Tip
5
–
6
–
H1
1420
1
6
