Cisco Systems OL-27407-01 manual Connecting an FXO Line, 36shows an FXS line connection

Chapter 3 Connecting the Router

Cisco 860, 880, 890 Series

To connect the FXS line, follow these steps:

Step 1 Connect one end of the straight-through RJ-11 cable to the FXS port.

Figure 3-36shows an FXS line connection.

Figure 3-36 Connecting an FXS Line

1

2

1

2

3

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Fax machine or telephone

FXS port 3 RJ-11 port

RJ-11 cable

Step 2 Connect the other end of the cable to the RJ-11 port on the fax machine or telephone.

Connecting an FXO Line

Use a straight-through RJ-11 cable to connect the FXO voice port to the PSTN or PBX through a telephone wall outlet.

	Cisco Integrated Services Router Hardware Installation Guide
3-40	OL-23125-02