ARINC 628P7-2

Purpose of this Specification

The factors cited above have an impact on all parties involvedincluding IFE suppliers, Cabin Electronics Compartment (CEC)providers, aircraft manufacturers, and the airline operators. Thisdocument defines a standard set of guidelines and requirementsnecessary for reliability of nonessential in-flight entertainmentequipment, and compatibility of this equipment with the airplaneenvironment and operations. These guidelines and requirements arepertinent for the following reasons:

a. Aircraft operators are accustomed to being able to store,maintain, and operate airplanes per manufacturer’s specificationsthat accommodate wider temperatures than some IFE systems andequipment can tolerate. The installation of IFE equipment leads tochanges in procedures for storing airplanes and conditions underwhich IFE equipment can be operated to perform routine maintenance.This document defines cooling and temperature-related operationalstandards deemed necessary for airplane IFE systems.

b. IFE supplier equipment, whose thermal performance is notcompatible with the full range of airplane temperatureenvironments, may exhibit lower equipment reliability. Thisdocument defines cooling and temperature related requirements forIFE systems and equipment design and testing necessary to maximizereliability and minimize cost of ownership for the airlinecustomer.

c. Airframe manufacturers are being asked more frequently toinstall and certify in-seat video systems in airplane models notdesigned to accommodate them. In order to better accommodate suchsystems in the future, this document defines cooling related LRUform factor standard design and testing requirements that willenable cost effective solutions for the installation and operationof diverse IFE systems and equipment.

d. IFE CEC providers need to ensure that their designs provideadequate cooling airflow to each LRU, while maintaining the totalCEC level airflow rate at the aircraft manufacture’s cooling systemcapacity. This document addresses installation parameters that anIFE CEC should comply with in order to ensure it performs tothermal specifications while also meeting noise and interfacestandards.

Optimized Solutions

The various issues related to the thermal impact of IFE systemscan be addressed in a variety of ways. Solutions can impact thedesign of the IFE equipment, require modifications to or additionof airplane cooling systems, and affect the environment, operationand maintenance of the airplane. One objective of this standard isto identify optimized solutions that minimize the impact to each ofthese areas. However, the following areas are affected by thestandards defined herein:

a. The physical and functional designs of IFEsystems/equipment,

b. The design of future aircraft air conditioning and equipmentcooling systems, and

c. The operation of IFE systems in the environmental extremes towhich the airplane will be subjected.

In effect, these standards promote solutions that allow the sameIFE equipment to be used in both production and retrofitinstallations. Solutions that are practical only for new airplanedesigns should be avoided if they are impractical in retrofitapplications.

Edition:

13

Published:

06/24/2013

Number of Pages:

93

File Size:

1 file , 1 MB