￿ Connect the audio cable to the 3.5 mm jack socket on

 

the operating control and to the corresponding jack

 

socket on your audio player.

 

Audio from the additional audio source and from the

 

intercom are heard simultaneously through the headset.

￿

Adjusting the microphone sensitivity

 

The microphone sensitivity has been factory pre-set to

 

80 mV/Pa as per RTCA DO-214.



To change the input sensitivity of the microphone:

￿Use a suitable slotted screwdriver.

￿ Turn the microphone sensitivity control  as shown.

 

Switching between mono and stereo mode

 

The mono/stereo switch allows you to switch between

mono and stereo mode, depending on the intercom system.

 

 

￿ Set the mono/stereo switch to the desired position:

 

– mono

 

– stereo

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