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2.1
Introduction
Information in this section consists of: unpacking and inspection procedures, installation procedures, post-
installation checks, and installation drawings.
2.2
Unpacking and Inspection
Unpack the equipment carefully and locate the warranty card. Inspect the unit visually for damage due to
shipping and report all such claims immediately to the carrier involved. Note that each unit should have the
following:
- AA21-400 Cabin PA System
- Warranty Card
- Release certification
Verify that all items are present before proceeding and report any shortage immediately to your supplier.
Complete the warranty card information and send it to AEM when the installation is complete. If you fail to
complete the warranty card, the warranty will be activated on date of shipment from AEM.
2.3
Installation Procedures
2.3.1
Note to Installers
The AA21-400 is intended for use as a cockpit-mounted control for an internal or external aircraft PA
system, where such a system is not installed to fulfill the airworthiness requirements for the aircraft or an
operating rule.
The AA21-400 is certified to RTCA DO-160D Section 20 (RF Susceptibility) Category T, for installation in a
well-protected electromagnetic environment such as an enclosed avionics bay in an all-metallic aircraft.
The equipment shall therefore not be installed to satisfy the requirement of FAR 25.1423 for a Public
Address system.
2.3.2
Warnings
Never ground any audio output line from the AA21-400 or permanent damage may result. Always check ADF
and compass calibration after installing external speakers or PA amplifiers. Significant single cycle errors may
be caused by the concentration of steel and magnetic material. Do not bundle any lines from these units with
transmitter coax lines. Do not bundle any lines from this unit with 400 Hz synchro wiring, or AC power lines.
Build Standard: 5.00
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
AA21-400 Cabin PA System
SM34 Installation and Operation Manual
Section 2.0 Installation
Nov 09, 2016
Page 2-1
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