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Cisco 1751 Voice-over-IP Quick Start Guide
78-11259-04
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
4Tip
5–
6–
H11420
1
6
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