Cisco 1605-R How To Use Manual page 74

Voice Interface Cards
Figure 3-24
VIC
FXO
Setting Jumpers on the 2-Port FXO Card
The FXO voice interface card includes two jumper headers, W3 and W4, to set loop-start
or ground-start mode. One jumper configures each FXO port. The default setting, which
should be satisfactory in most installations, is loop start. In this setting, jumpers are placed
over positions 2 and 3 of headers W3 and W4.
Most modern central office equipment, such as DMS-100 and 5ESS switches, provides
calling party control (CPC) and Ring on Seize on loop-start lines. CPC allows quicker
disconnection, and Ring on Seize minimizes glare (collision of inbound and outbound calls
on the same interface). If your central office does not provide these features on loop start,
you may want to configure the FXO card for ground-start operation instead by moving the
jumpers to positions 1 and 2.
For proper operation, both jumpers must be configured identically. In most cases, jumper
setting should have little or no effect on operation.
Note
Connecting the 2-Port FXO Card
Use a standard RJ-11 modular telephone cable to connect the VIC-2FXO voice interface
card to the PSTN or PBX through a telephone wall outlet.
Step 1
Step 2
Step 3
3-26 Cisco WAN Interface Cards Hardware Installation Guide
2-Port FXO Card Front Panel
1
SEE MANUAL BEFORE INSTALLATION
This setting does not apply to VIC-2FXO-EU.
Confirm that the router is still turned OFF.
Connect one end of the cable to an RJ-11 port on the card. (See Figure 3-25.)
Connect the other end to the telephone wall outlet (RJ-11 port).
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