Connecting Voice Interface Cards to the Network
Centralized Automated Message Accounting Trunk Protocol Interface Cards
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OL-12847-01
Step 8
Check that the CD LED comes on, which means that the card’s internal DSU/CSU is communicating
with the DSU/CSU at the T1 or E1 service provider central office.
Centralized Automated Message Accounting Trunk Protocol
Interface Cards
The Centralized Automated Message Accounting (CAMA) trunk protocol interface connects local calls
to emergency services. The CAMA card provides the software features required to connect directly to
the enhanced 911 (E911) network from the customer premises. It also provides direct connections to a
Public Service Answering Point (PSAP) using analog CAMA trunks. The CAMA protocol provides
in-band signaling.
Note
For the NM-HD-1V, NM-HD-2V, and NM-HD-2VE voice network modules, and for the Cisco 1751 and
1760 routers, CAMA is supported by the VIC2-2FXO interface card. The VIC-2CAMA card cannot be
used with the NM-HD-1V, NM-HD-2V, or NM-HD-2VE voice network modules, or with the Cisco 1751
or Cisco 1760 routers.
CAMA Interface Cards
The 2-port CAMA card is illustrated in
Figure 22
.
Figure 22
V2-Port CAMA Card Front Panel (VIC-2CAMA)
Connecting the CAMA Interface Card
Use a straight-through RJ-11 cable to connect the VIC-2CAMA voice interface card to the PSTN or PBX
through a telephone wall outlet.
Note
Ports on this interface card are colored pink.
Step 1
Confirm that the router is still turned off.
Step 2
Connect one end of the straight-through RJ-11 cable to an RJ-11 port on the card. (See
Figure 23
.)
62331
SEE MANUAL BEFORE INSTALLATION
VIC-
2CAMA
IN USE
IN USE
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