Black Box COMPACT T1 - Manual (Page 38)

34 Compact T1 - Release 6.1
Quick Start
Service Cards
FXS Card
DIP Switch Settings
Each FXS card contains ten DIP switches that can be used to select signaling
options for all eight channels.
LEDs
Each port on the FXS card has its own LED, as described in the table below.
Switch Function Description Note
1-2 Signal
Type 1 2
0 0 = FXS Loop Start
1 0 = FXS Ground
Start FXS and FXS5G card
00 = R2 FXS INTL card
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, 6, and 7. +9
(1110) is not available.
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, 6, and 7. +9 (1110) is not
available.
Maximum setting on the 5G is +6 dB.
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
State Loop Start
Meaning Ground Start Meaning
Off N/A Idle (tip open)
Green Idle Tip ground (incoming seizure)
Red N/A Ring ground (outgoing seizure)
Yellow Call in progress Call in progress
Flashing green Ringing Ringing