7
8 Connect Telephone, Fax Machine, or Modem
If you have a Cisco 813 router, you can connect a touch-tone telephone, fax machine, or modem. Use the cables provided with
these devices.
The gray PHONE 1 and PHONE 2 ports are RJ-11 connectors.
Caution Do not connect the router telephone ports to the telephone wall jack. These ports are not meant for direct
connection to the public network. This connection can damage your router.
Figure 4 Connecting a Cisco 813 Router to a Telephone
Step 1 Connect one end of the telephone cable to the gray PHONE 1 or PHONE 2 port. If you are connecting only one device,
use the PHONE 1 port.
Step 2 Connect the other end of the cable to your device.
Cisco 813 router
TO HUB
TO PC
Model Cisco 813
4
3
2
1
ETHERNET 10 BASE T PHONE
CONSOLE ISDN S/T ISDN U
ISDN U 2
1
+5, -24, -71 VDC
Analog telephone
ON
NOR
RVS
DSU
OFF