User manual

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Communication

All connected belt stations will be able to communicate with each other through the U9922-

G38(EU) 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(EU), 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(EU) 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(EU) gateway and ensure sidetone

is present (see belt station User Manual).

2. Begin speaking and slowly turn the Volume knob on the U9922-G38(EU) 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(EU) for a particular radio, follow the procedures below.