89000046-014
KSN 780/8XX/900 AeroNav AML STC Installation Manual for Helicopters
Rev 0
Page C-20
© Honeywell International Inc. Do not copy without express permission of Honeywell.
NOTES:
1.
ALL WIRES TO BE 22 AWG OR GREATER UNLESS OTHERWISE NOTED.
2.
CONNECTING TWO MICROPHONES TO MIC AUDIO HI/LO OR INTERCOM MIC HI/LO AT THE SAME TIME
MAY RESULT IN WEAK OR DISTORTED AUDIO. MIC ISOLATION RELAYS ARE RECOMMENDED SO THAT
ONLY ONE MIC IS ACTIVE AT A TIME.
3.
RESERVED
4.
IF THE AUDIO PANEL DOES NOT HAVE A LO INPUT. IT SHOULD BE CONNECTED TO A GROUND LUG AT
THE AUDIO PANEL.
5.
THE AERONAV 900/800 INTERCOM FUNCTION SHOULD ONLY BE USED IF THERE IS NO OTHER
INTERCOM SYSTEM IN THE AIRCRAFT.
6.
INTERCOM WIRING OPTION:
7.
THE COM REMOTE TRANSFER INPUT (P1002-15) MAY BE USED FOR EMERGENCY OPERATION OF THE
COM TRANSMITTER. IF THE REMOTE TRANSFER SWITCH IS ACTIVE FOR THREE SECONDS, THE ACTIVE
COM FREQUENCY WILL CHANGE TO 121.50 MHZ.
8.
REFER TO MANUFACTURER’S DOCUMENTATION FOR COMPLETE PINOUT AND INTERCONNECT
INFORMATION. PINOUT OF OTHER UNITS SHOWN FOR REFERENCE ONLY.
9.
SHIELDS FOR AUDIO CABLES SHOULD BE GROUNDED AT ONE END (WITH LEADS LESS THAN 3.0
INCHES) AND LEFT FLOATING AT THE OTHER END. IF SHIELDED AUDIO CABLE IS CARRIED THROUGH
DISCONNECT, CARRY SHIELD GROUND THROUGH DISCONNECT ON SEPARATE PIN.
NOT APPLICABLE FOR AERONAV 880/780
AERONAV 900/800
COM MIC KEY
COM MIC AUDIO HI
INTERCOM MIC HI
COM MIC AUDIO
P1002
4
6
5
18
NC
COM
INTERCOM
MIC JACK
MICRO PHONE
SWITCH (DPDT)
2
4
5
6
7
10
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