Telex PROCOM2 User Manual

compare it to the volume level when talking on the intercom. If there is a
difference in levels, adjust the equalization trimmer (labeled RADIO) on the
rear panel of the PC 2 until the radii level is the same as the intercom level.
Set the power switch to OFF (FAILSAFE) when the intercom is not in use to
consewe battery power. In th'is position the pilot phones are connected
directly to the radio (the pilot microphone signal is always connected to the
radio except when copilot is transmitting).
Rear Panel Trimmer Controls
AUTOMATIC SQUELCH OPERATION
The PC 2 contains an automatic squelch circuit which makes most manual
squelch adjustments unnecessary. This circuit uses a built-in microphone
to monitor the noise level in the aircraft. The microohone is located on the
top panel of the PC 2 next to the pilot MIC and
PHONE jacks. For proper
operation, do not obstruct the microphone.
In most cases the manual squelch control should be left in the extreme
clockwise ~osition. and the automatic sauelch circuit will comoensate for
most chan'ges in ambient noise level; hdwever, if the ambieninoise level
during operation of the aircraft becomes too loud and causes undesirable
intercom activation, rotate the squelch control slightly counterclockwise until
the intercom audio tums off. The intercom should reactivate when speaking
into either microphone.
Squelch Circuit
Microphone
ACCESSORY INFORMATION
Optional Aircraft Power Cable ............................... Catalog No. 96513-000
2-Foot (0.6 m), with Cigarette Lighter Plug
Model PT-300 Push-To-Talk Switch
.......................... Catalog No. 63966-000

Telex PROCOM2 Specifications

General

Brand	Telex
Model	PROCOM2
Category	Intercom System
Language	English