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Cisco Integrated Services Router Hardware Installation Guide
Chapter 3 Connecting the Router
Cisco 860, 880, 890 Series
Warning
Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF
or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables,
detach the end away from the unit first.
Statement 1026
To connect the FXO line, follow these steps:
Step 1 Connect one end of the straight-through RJ-11 cable to the FXO port. See Figure 3-37.
Figure 3-37 Connecting an FXO Line
Step 2 Connect the other end of the RJ-11 cable to a telephone wall outlet.
Note If you have specified the use of a private line automatic ringdown (PLAR) off-premises extension (OPX)
connection mode for an FXO voice port (with loop resistance less than 8000 Ohm), you must ensure that
the soft-offhook option is enabled on the port.
1 FXO port 3 Telephone outlet
2 RJ-11 cable
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