SPECIFICATIONS
Size: ....................................................................................................................... 2.375"W x 1"H x 2.625"D
Weight: ..........................................................................................................................................3.6 ounces
Output ......................................................................................................... 375 milliwatts into each 150 ohm
..........................................................................................................headset. Sound level remains constant
............................................................................................................... regardless of the number or type of
...................................................................................................................................... headsets connected.
Power Requirements: ..................................................................................................0.16 amps, 12-28VDC
Warranty ........................................................................................................................ 1 Year Parts & Labor
PARTS LIST
1 .................................................................................................................. 25-pin D-sub connector housing
1 ..................................................................................................................................................... Faceplate
2 ........................................................................................................................................................... Knobs
4 ...................................................................................................................................... 4-40 Screws (black)
1 .....................................................................................................................25-pin D-sub connector (male)
1 ........................................................................................................................................... 403mc Intercom
1 ......................................................................................................................................................... Manual
4 ....................................................................................................................................... Headphone Jacks*
4 .................................................................................................................................................... Mic Jacks*
8 ............................................................................................................................................................ Nuts*
8 ...................................................................................................................................................... Washers*
4 ............................................................................................................................................ Black Washers*
4 .................................................................................................................... White Nylon or Fiber Washers*
*When purchased with all possible optional jacks
WIRE CONNECTION GUIDE
The following connector pin numbers correspond to the numbers located on the D-sub connector provided with your intercom:
CONNECTOR PIN
Pin #1 ..................................................... Ground ..................................................... Avionics ground point
Pin #2 ..................................................... Mic Audio .................................................. Pilot mic
Pin #3 ..................................................... Mic Audio .................................................. Copilot mic
Pin #4 ..................................................... Mic Audio .................................................. Passenger mic
Pin #6 ..................................................... Copilot ...................................................... Copilot PTT Switch
Pin #7 ..................................................... Pilot key .................................................... Pilot PTT Switch
Pin #8 ..................................................... Transmit key ............................................. Comm radio keyline
Pin #9 ..................................................... ICS Audio ................................................. Pilot headphone
Pin #11 ................................................... ICS Audio ................................................. Passenger headphones
Pin #13 ................................................... Mic return ................................................. All mic jacks
Pin #14 ................................................... Mic Audio .................................................. Passenger mic
Pin #16 ................................................... Copilot Transmit Audio .............................. Comm radio
Pin #17 ................................................... Pilot Transmit Audio .................................. Comm radio
Pin #18 ................................................... Aux input ................................................... Music system
Pin #20 ................................................... Power in .................................................... 12-28 V, 1 amp breaker
Pin #21 ................................................... Receive Audio .......................................... NavCom/Audio Panel
Pin #23 ................................................... Intercom Mute .......................................... None
Pin #24 ................................................... Aux Mute .................................................. None
Pin #25 ................................................... Mute Activate ............................................ None
6
INTERCOM FUNCTION
AIRCRAFT CONNECTION
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