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An FXO port is an analog input RJ11 port just like a POTS trunk input on a PABX or key system. An FXO port receives talk bat-
tery and ring voltage. In the FXO mode, the
An FXS port is an analog output RJ11 port just like a station port on a phone system or PABX extension. It provides talk bat-
tery, dial tone and ring voltage. In the FXS mode, the FXI-1 is triggered by ring voltage to seize the line, it is then powered by
the talk battery being provided.
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In this mode, the unit is powered by the ringing line and answers after 1 second, activates the relay contacts and provides a pre-
page beep if enabled (S1-4 on). If more than 2.5 seconds of silence, a busy tone (default timer >16 seconds), or a CPC are detect-
ed, or the default timer expires, the unit releases the relay and drops the line.
In this mode, the unit waits until loop is detected, then activates the relay contacts and provides a pre-page beep if enabled (S1-4
on). If more than 2.5 seconds of silence or a busy tone (default timer > 16 seconds) is detected, or the default timer expires, the unit
releases the relay and provides a 2 second CPC.
In this mode, the unit waits until audio is detected, then activates the relay contacts. If more than 2.5 seconds of silence or a busy
tone (default timer > 16 seconds) is detected, or the default timer expires, the unit releases the relay. There is no pre-page beep in
this mode.
If the unit is installed in FXO or VOX mode and not currently paging or providing a CPC, a momentary closure on the Night Bell input
for 50mS or more will trigger a 1 second pause followed by relay activation, a 1.5 second warble tone, and relay release. A contin-
uous closure on the night bell input causes the 1 second pause, 1.5 second warble tone cycle to repeat until the closure is removed.
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16 second default timer, busy detect off
36 second default timer, busy detect on
60 second default timer, busy detect on
Default timer disabled, busy detect on
Lower VOX sensitivity
Normal VOX sensitivity
Pre-page and night bell tone on
Pre-page and night bell tone off
VOX (600 ohm page port) mode
FXS (ring trip) or FXO (loop start) mode
provides 26V talk battery to connect to an FXO port or plain analog phone.
Internal View of the FXI-1
Master Volume
Note: DIP Switches shown
in factory default settings.
Control
ON
OFF
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