Black Box COMPACT T1 - Manual (Page 37)

Compact T1 - Release 6.1 33
Quick Start
Service Cards
Service Cards
FXO Card
DIP Switch Settings
The DIP switches on the FXO card control all eight channels. In order to apply
different settings to channels on the same card, use the CLI.
LEDs
Each port on the FXO card has its own LED, as described in the table below
Switch Function Description Note
1-2 Signal
Type 1 2
0 0 = FXO Loop Start
1 0 = FXO Ground Start
0 1 = DPT (use with E&M setting
on T1)
1 1 = FXO Loop Start with
Calling Party Disconnect
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.
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 Dial Pulse Termination
Meaning
Off N/A Idle (tip open) Idle (loop open)
Green Idle Tip ground (incoming seizure) Incoming seizure
Red N/A Ring ground (outgoing seizure) Loop closure (outgoing seizure)
Yellow Call in progress Call in progress Call in progress (reverse battery)
Flashing Green Ringing Ringing N/A