Installation Maintenance Manual
FMHPA 82166
3-1
Jul 2008
©
THALES AVIONICS Ltd. This document and any
information included are the property of Thales Avionics.
They cannot be reproduced, disclosed or utilized without the
company’s prior written approval
SECTION 3
30000
INSTALLATION GUIDELINES
3.1. INTRODUCTION
The FMHPA should be installed in the aircraft in a manner consistent with acceptable
workmanship and engineering practices, and in accordance with the instructions set
forth in this manual.
To ensure that the system has been properly and safely installed in the aircraft the
installer should make a through visual inspection and conduct an overall operational
check of the system on the ground prior to commissioning to the Customer and or a
flight.
NOTE:
Before installing any components or cabling, read all notes contained
within drawings.
3.2. INTERCHANGEABILITY
The FMHPA will only operate when installed with a Thales SDU. Therefore, the
FMHPA are interchangeable only with identical system components as covered in this
manual.
The FMHPA and SDU are a Functional Doublet. This means that the interwiring and pin
out definitions are interchangeable, but due to unique protocol implementations, the
supply and acquisition of these units are manufacturer specific.
3.3. FMHPA LOCATION AND ACCESSIBILITY GUIDELINES
CAUTION:
BEFORE EQUIPMENT INSTALLATION ENSURE THAT THE
AIRCRAFT POWER SUPPLY TO THE SDU CIRCUIT BREAKER
IS POSITIONED IN THE OFF CONDITION.
The FMHPA will be installed in an RTCA DO160 Category A2 location on an aircraft
with forced air-cooling.
The FMHPA must be installed in a pressurized and partially temperature controlled
zone. The FMHPA requires external forced air-cooling.
The FMHPA must have a minimum amount of free space around it, to facilitate
convective cooling in the absence of forced air cooling (refer Figure 3.1). As a guideline
1” spacing in every direction.
