3-12
Cisco CVA122/CVA122E Hardware Installation Guide
OL-0799-02 (05/2001)
Chapter 3
Installing the Cisco CVA122/CVA122E Cable Voice Adapter
Connecting to Telephones or Fax Devices
Figure 3-6
Connecting the CATV Coaxial Cable to the Cisco CVA122/CVA122E Cable Voice Adapter
Caution
Do not overtighten because this can break off the connector. Using a torque wrench is not
recommended because of the danger of tightening the connector more than the
recommended 1/6 turn after it is finger tight.
Step 5
Make sure all other coaxial cable connectors—all intermediate splitters, couplers, or ground
blocks—are securely tightened from the distribution tap to the Cisco CVA122/CVA122E Cable Voice
Adapter.
Note
Loose connectors inside the residence can cause intermittent network operation.
Caution
To ensure compliance with FCC limits, connection to the cable system must be made with
a high-quality, shielded cable. If the quality or general condition of the coaxial cable at the
subscriber site is in question, Cisco recommends that you replace the coaxial cable. For
more information on the effects of substandard cabling on the cable voice adapter
installation, see the “Cabling” section on page 2-5.
Connecting to Telephones or Fax Devices
If you have purchased voice services from your service provider, use the following procedure to connect
the Cisco CVA122/CVA122E Cable Voice Adapter to telephone, modem, or FAX devices at the site.
V1+V2
X
USB
Phone
Power
+5,-30,-56
V
Cable TV In
Ethernet
V2
35996
F connector
(Cable TV In)
To cable source
