Cisco CVA122 Hardware Installation Manual page 53

Chapter 3 Installing the Cisco CVA122/CVA122E Cable Voice Adapter
Obtain the telephone number assignments for each voice port from your service provider, and label each
Step 1
telephone, modem, or FAX device with its assigned number.
Obtain a proper cable for each device to be connected. This cable should be either a two-wire or a
Step 2
four-wire cable wired straight-through, with an RJ-11 connector on at least one end; the other end
typically has an RJ-11 connector as well, but this depends on the type of device being connected.
Note
Step 3 Connect the RJ-11 end of this cable to the appropriate voice port (labeled "V1+V2" or "V2") on the
rear panel of the Cisco CVA122/CVA122E Cable Voice Adapter. Press the cable firmly into the
receptacle.
Connect the other end of the cable to the telephone, modem, or FAX device that has been given the
Step 4
number assigned for that voice port. Press the cable firmly into the receptacle.
Do not connect the voice ports to telephone wires that exit the building under any
Caution
circumstances—this is a safety hazard. The Cisco CVA122/CVA122E Cable Voice
Adapter is not designed to connect to the Public Telephone Switched Network (PTSN).
See Figure 3-7 illustrates a possible configuration. The exact configuration depends on the phone
numbers that are assigned by the service provider.
Figure 3-7
Use the voice ports as assigned
Note
OL-0799-02 (05/2001)
When connecting a single-line telephone, you can use either a two-wire or a
four-wire cable. When connecting a dual-line telephone to the "V1+V2" voice
port, you must use a four-wire cable.
Connecting the Voice Ports
by the service provider
E th e rn e t
P h o n e
P o w e r
+ 5 ,- 3 0 ,- 5
X
V
U S B
V 1 + V 2
V 2
The "V1+V2" connector supports either a single-line analog telephone or a
two-line analog telephone. When using a two-line telephone, line 2 of the
telephone behaves as if a single-line telephone is plugged into the V2 voice port.
In this configuration, a device plugged into the V2 port act as extensions to the
line 2 telephone.
C a b le T V
6
In
Cisco CVA122/CVA122E Hardware Installation Guide
Connecting to Telephones or Fax Devices
3-13