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Cisco 1750 Router Hardware Installation Guide
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VIC Cables and Pinouts
VIC Cables and Pinouts
This section describes the VIC cables and pinouts for foreign exchange station 
(FXS), foreign exchange office (FXO), and E&M connectors. Use the following 
cables to connect the VICs to the network:
• Standard RJ-11 modular telephone cable to connect FXS VIC ports 
(color-coded gray) to a telephone or fax machine. 
• Standard RJ-11 modular telephone cable to connect FXO VIC ports 
(color-coded pink) to the PSTN or to a PBX that does not support E&M 
signaling. 
• Standard RJ-48S connector and cable to connect E&M VIC ports 
(color-coded brown) to a PBX line. The cable wiring depends on the PBX 
type and connection. For details refer to the Cisco WAN Interface Cards 
Hardware Installation Guide. 
Figure 2 shows how to connect the VICs to the network.
Figure 2 Connecting VICs to the Network
Table 4 lists the pinouts for FXS and FXO VIC 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
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