Carrier Access Access Bank II SNMP - Manual (Page 93)

Battery Reversal FXS & Dial Pulse Origination Card
9-20 9/24/01
5. Press both card ejector latches in towards the FXS card to seat the 64-pin DIN connector in
the matching connector on the internal Controller card.
6. Replace the back plate and tighten the thumbscrews.
9.6 BRFXS/DPO Configuration Settings
The configuration of the Battery Reversal FXS/DPO card is set by a 4-position DIP switch and 12
individual channel test switches accessed through the ABI back plate. The settings for these switches
are described in Table 9-2.
Table 9-2: Transmit and Receive Attenuation Switch Values
Switch Function OFF ON
A Ringing Voltage DPO Operation
Ringing voltage never
applied to CPE loop. 2-wire FXS loop-start
operation: Cadenced (2-
second/4-second)
ringing voltage applied
to CPE loop during
incoming call
B Ringback Tone Ringback tone never
applied to network. Cadenced (2-second/ 4-
second) ringback tone
applied to network
during incoming call.
C <Reserved> Normal <Reserved>
TPIdle/Busy CPE loop state during
Trunk Processing (TP) Forward battery applied
to all CPE loops during
Trunk Processing. Reverse battery applied
to all CPE loops during
Trunk Processing.
Channel Test
One switch per
channel Individual channel busy Normal channel
operation Channel is busy - reverse
battery applied to CPE
loop; A/B bits to
network are forced to 1/
1. In addition, if Switch
A is ON, 4 seconds of
ringing voltage is
applied to local loop,
and if Switch B is ON, 4
seconds of ringback tone
is sent toward network.