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Cisco 800 Series Routers Hardware Installation Guide
78-5373-04
Chapter 2 Installation
Installing Your Router
telephones, faxes, or modems to work properly with the router phone ports. For example, in the
United Kingdom, you must buy an adapter that also provides a master socket, which causes incoming
calls to ring the connected devices. For information on recommended master sockets, see Table 2-3.
Warning
This equipment contains a ring signal generator (ringer), which is a source of hazardous voltage. Do
not touch the RJ-11 (phone) port wires (conductors), the conductors of a cable connected to the RJ-11
port, or the associated circuit-board when the ringer is active. The ringer is activated (indicated by a
clicking sound) by an incoming call.
Caution Do not connect the router telephone ports to the telephone wall jack. These ports are not meant for direct
connection to a public network. This connection can damage your router.
Figure 2-8 Connecting an Analog Telephone, Fax, or Modem to Cisco 803 and Cisco 804 Routers
Table 2-3 Recommended Vendors for United Kingdom Master Sockets
Vendor Name Product Name For More Information
RS Components Avro Pacific Telephone Ring
Adapter (part number 303-2000)
http://www.rswww.com/
Tandy Export Adapter
(part number 2797057)
http://www.tandy.co.uk/
ISDN U
CONSOLE
12
ETHERNET 10 BASE T
HUB
NO HUB
Cisco 804
PHONE
0123
11679
Analog
telephone
Cisco 804 router
1. Connect telephone cable to
gray PHONE 1 or PHONE 2 port.
If you are connecting only one
device, use PHONE 1 port.
2. Connect other end of
cable to telephone,
fax machine, or modem.