User Manual

PS Engineering Inc. ®
PAR200A Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0200 Page 2-10 June 2014
2.9 Microphone gain reduction
For installations in very noisy aircraft, a reduction in the intercom microphone input gain may be desirable.
The PAR200A has two DIP switches located on the main board that can switch the inputs to a lower gain
setting. PS Engineering installers call for the Service Aid.
Figure 2-3 DIP switches
Change the settings as shown in the table below.
Switch Bank
Switch
Noisy Cockpit
Normal Cockpit
Pilot Microphone
J5
1
OFF
ON
2
ON
OFF
Copilot Microphone
3
OFF
ON
4
ON
OFF
J4
Passenger 1 Microphone
1
OFF
ON
2
ON
OFF
Passenger 2 Microphone
3
OFF
ON
4
ON
OFF
Table 2-5 Microphone gain settings
1
2
3
4
5
6
ON
OFF
ON
OFF