Cisco 800 Series Hardware Installation Manual page 249

Chapter 3 Connecting the Router
Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF
Warning
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
1 FXO port
2 RJ-11 cable
Step 2 Connect the other end of the RJ-11 cable to a telephone wall outlet.
If you have specified the use of a private line automatic ringdown (PLAR) off-premises extension (OPX)
Note
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.
Connecting an FXO Line
2 1
3 Telephone outlet
Cisco Integrated Services Router Hardware Installation Guide
Cisco 860, 880, 890 Series
Figure 3-37.
3
3-41