EE Compartment

PASSENGER ENTERTAINMENT SYSTEM-AUDIO

Introduction

The passenger entertainment system - audio (PES-audio) sends recorded entertainment audio and passenger address audio to each passenger seat.

Each passenger can make a selection to hear one of many available audio channels.

Abbreviations and Acronyms

· AEP - audio entertainment player

· AMUX - audio multiplexer

· BITE - built-in test equipment

· EE - electronic equipment

· PAS - passenger address system

· PCU - passenger control unit

· PES - passenger entertainment system

· SEB - seat electronics box

· STA - station

General

Audio signals from the audio entertainment player (AEP) go through passenger entertainment system-audio (PES-audio) components to the passengers.

Components

These are the components of the PES-audio:

· Audio entertainment player (AEP)

· Audio multiplexer (AMUX)

· Seat electronics boxes (SEBs)

· Passenger control units (PCUs).

There are two columns of seat electronics boxes. There is one seat electronics box for each seat group. A seat group has one, two, or three seats. Each seat has one passenger control unit.

The passenger address system (PAS) connects with the PESaudio.

Attendant Control

Attendants use the forward attendant panel to control power to the audio entertainment player and the audio multiplexer.

Passenger Control

Passengers use the passenger control units to select audio programs. They hear entertainment audio from the audio entertainment player.

Audio Entertainment Signals

The PES-audio gets audio inputs from these sources and sends

them to each passenger seat: Entertainment audio from the audio entertainment player

Passenger Address Override

The passenger address system stops the entertainment audio during an announcement. Passengers cannot change channels on the passenger control unit during a passenger addressannouncement. General

PES-audio components are in the electronic equipment compartment and the passenger compartment.

Passenger Compartment

These components are in the passenger compartment:

· Forward attendant panel

· Seat electronics boxes

· Passenger control units

EE Compartment

The audio entertainment player and the audio multiplexer are in the electronic equipment compartment.

General

Circuit breakers for the PES-audio are on the P6 circuit breaker panel.

The audio entertainment player and the audio multiplexer receive 115v ac power when you turn on the in-flight entertainment (IFE) switch.

You use a switch on the forward attendant panel to apply 115v ac to these components:

· Audio entertainment player

· Audio multiplexer

· Seat electronics boxes.

The entertainment circuit breakers supply power to the first seat electronics box in each column. Power goes through the seat electronics box to the next seat electronics box in the column.

The seat electronics boxes supply 5.6v dc to the passenger control units in the seat group.

General

The PES-audio gets audio inputs from these sources:

· Audio entertainment player

· Passenger address system.

The audio multiplexer receives all the audio inputs.

The audio multiplexer changes analog audio to digital signals.

The digital signal goes to the first seat electronic box (SEB) in each of the four columns of SEBs.

Дата добавления: 2015-10-30