19541P-43 (03-12)
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Communication
All connected belt stations will be able to communicate with each other through the U9922-G38
while in range (and per the VOX settings on each VOX belt station.) Additionally, all belt station
users will have communication over the intercom. If a two-way radio is installed to the U9922-
G38, pressing the PTT button on a VOX belt station will allow the user to transmit over the
system’s two-way radio. Pressing the PTT overrides the VOX setting on a VOX belt station.
Multiple belt station users may PTT and thus speak over the two-way radio simultaneously. For
more information consult the user manual for the belt station.
Tip:
Wireless users who are not pressing PTT while another wireless user is pressing PTT will
not be heard on the wired intercom while the PTT remains pressed.
Intercom Level Adjustment
Audio levels can vary between intercoms, mainly due to the system level setting on the wired
intercom. To compensate for this, the U9922-G38 has the ability to adjust its receive level from
the intercom using the
Volume
knob (see
Figure 1
). Turning this knob will increase or decrease
the audio level coming from the wired intercom into the gateway. Perform this adjustment to
obtain optimum performance.
Intercom Level Adjustment Procedure
1.
Connect at least one belt station to the U9922-G38 gateway and ensure sidetone is
present (see belt station User Manual).
2.
Begin speaking and slowly turn the
Volume
knob on the U9922-G38 clockwise until
you hear an echo of your own voice.
3.
Continue speaking and turn the
Volume
knob counter-clockwise until the echo stops.
4.
You may wish to verify communication with someone hard-wired to the intercom.
Radio Level Adjustment
Audio levels to and from a two-way radio can also vary between radio models and
manufacturers. To adjust the U9922-G38 for a particular radio, follow the procedures below.
Summary of Contents for 3800 U9922-G38
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