DC-COM Model 200 Features:

• Power on-off/Fail Safe Switch The smooth operating toggle switch placed in the on position provides power from selected power source (external or battery).Toggle to aft position removes power from intercom and provides fail safe operation by routing transmit and receive audio directly to headset.
• Battery Select Switch is used when indicator light pulsates red to signal low battery - After switching to new battery indicator light will return to pulsating green. Low battery should be replaced as soon as possible.
• Power/Battery Indicator Light illuminates constant green when using external power operation. pulsating green for internal battery operation and pulsating red for low internal battery.
• Pilot and Co-pilot Jacks will accept the standard plugs (PJ-055 headset and PJ-068 microphone) from any general aviation headset and the microphone plug from a portable P44 Switch like DCC Model C1O-15.
• A Front Panel Push-To-Talk Button is provided for pilot transmissions when a yoke mounted PU or a portable PU Switch is not used.
• Volume Control Knob for setting system volume level. Individual's headset level can be set with headset volume controls.
• Squelch Control Knob for setting VOX threshold for voice activation of intercom for pilot and copilot positions. VOX threshold for passengers is set from Model 2OOEX Expansion Module.
• Auxiliary Input Jack will accept signals from devices such as portable CD and tape players. Aux in will mute with radio reception.
• Auxiliary Output Jack will provide line level signal for driving CVRs, tape recorders or other such devices.
• External Power Input Jack will accept plug from power cord supplied for use with external power.
• Expansion Jack will accept the plug of the extension cord supplied with Model 2OOEX Expansion Module to expand the system to a four place and six place system.
• Battery Powered by one of two available batteries. When one battery begins to drain (after approx. 40 hrs.) simply switch to second battery using battery select switch for an additional 40 hrs. of intercom use.
• Battery Cover Plate is easily removed for replacing batteries by simply unscrewing the thumb nut and replacing the batteries.

Advanced DC-COM Model 500 Features:

COM SELECTOR SWITCH

Pilot and Co-pilot can transmit or monitor two different com radios simultaneously* or independently. Three modes of operation:

COM 1	Pilot and Co-pilot can transmit and receive on COM 1 radio
COM 2	Pilot can transmit and receive on COM 1 radio; Co-pilot can transmit and receive on COM 2 radio
COM 3	Pilot and Co-pilot can transmit and receive on COM 2 radio

*Unit is shipped preset for Pilot Priority Transmission which mutes Co-pilot transmissions Internal switch must be reset for simultaneous Pilot/Co-pilot transmissions.

ACCOMMODATES UP TO 6 AVIATION HEADSETS

DC-COM Model 500 is a two-six place voice-activated (VOX) intercom.

INDIVIDUAL VOX CIRCUITS FOR EACH HEADSET

Each place has an independent VOX circuit. Only the microphone spoken into will be activated, all other microphones remain silent (off) reducing unwanted background noise.

VOICE-ACTIVATED INTERCOM

The DC-COM Model 500 provides two superior squelch circuits that are easily set for optimum VOX operation in a wide range of noise environments. The circuits are controlled by the SQUELCH control knobs.

PRIORITY TRANSMISSION

The DC-COM Model 500 is shipped preset for Pilot Priority Transmission. If the Pilot is transmitting the Co-pilot cannot transmit, or if the Pilot wishes to transmit he can pre-empt the Co-pilot's transmission.

TRUE STEREO SYSTEM

The unit comes factory set for mono at all locations. True stereo, with left and right channels at any location, is accomplished during installation by resetting jumpers within the unit. Frequency response 20 Hz to 1O KHz.

TRUE FAIL-SAFE

DC-COM Model 500 has built-in Fail-Safe. If power is removed from the unit or the unit is turned off, the Fail-Safe is automatic. In Fail-Safe, the Pilot is connected directly to the COM 1 port of the intercom. There is no inter-cabin communication though the unit in Fail-Safe mode.

OPTIONAL ATC/AUX. SWITCHES

The DC-COM Model 500 has built into it the muting of AUX. upon com radio reception. If you want to override this feature, you may add the optional ATC/AUX. switches external to the unit. In the ATC mode, the com radio reception mutes the AUX.; in the AUX. mode, com radio reception is heard with the AUX.

HORIZONTAL OR VERTICAL INSTALLATION

DC-COM Model 500 can be mounted through the panel or under the panel with the bracket provided. The unit can be mounted horizontally or vertically using the reversible face plate provided.

5-YEAR GUARANTEE

DC-COM Model 500 Aircraft Intercom is made in the U.S.A. and carries our exceptional 5-Year Guarantee.

• Superior squelch circuit that eliminates syllable "clipping"
• Pilot-Copilot priority override during transmission
• Provides constant monitoring of Air Traffic Control
• Headset side tone if not supplied through radio control
• Internally lighted ISOCOM assures clear identification of the volume and squelch controls and on/off switch
• Transmit indicator light (located between the volume and squelch knobs) is illuminated when a P-T-T switch is activated for external transmission
• Universal voltage capability (11-32V) that makes it compatible with either 14 or 28 volt electrical systems