Black Box Compact T1 MT850A, User Manual

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8-8 Compact T1 - Release 6.1
FXS Voice Card
Card Configuration
DIP Switch Settings
Each FXS card contains ten DIP switches that can be used to select signaling options
for all eight channels.
NOTE:
The FXS channels default to a short loop setting
(up to 1.6 miles for 26 AWG, and 2.6 miles for 24 AWG). To set an FXS
channel to have a long loop setting, see
set (fxs5G)
command in Chapter 5,
CLI Commands.
Switch Function Description Note
1-2 Signal
Type 1 2
0 0 = FXS Loop
Start
1 0 = FXS Ground
Start
3-6 Receive
Gain/
Loss 3 4 5 6 These settings allow for receive gain
and losses of -9, -7, -6, -5,
-4, -3, -2, 0, 2, 3, 4, 5 and 6.
0 0 0 0 = 0 dB
0 0 0 1 = -9 dB
0 0 1 0 = +2 dB
0 1 0 0 = +3 dB
1 0 0 0 = +4 dB
7-10 Transmit
Gain/
Loss 7 8 9 10 These settings allow for transmit gain
and losses of -9, -7, -6, -5, -4, -3, -2, 0,
2, 3, 4, 5 and 6.
0 0 0 0 = 0 dB
0 0 0 1 = -9 dB
0 0 1 0 = +2 dB
0 1 0 0 = +3 dB
1 0 0 0 = +4 dB