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Rev A
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JA95-091
Audio Controller - Dual ICS Input
SECTION 1 - DESCRIPTION
1.1
System Overview
The JA95-091 Audio Controller - Dual ICS Input is a centralized audio management system that distributes and
controls all transceiver, receiver and alert audio in an aircraft. It enables the selected transmission of microphone
audio to a transceiver and distributes all intercom audio.
The JA95-091 Audio Controller - Dual ICS Input can be used in a standalone configuration or a star configuration to
prevent the loss of the entire system due to the failure of one controller. It provides a passive emergency mode that
directs the primary user (pilot) to the COM1 transceiver, NAV1 receiver and Direct Audio receiver.
The JA95-091 is set up on a per-installation basis using a configuration cable and a PC running the product
configuration tool to download system configuration settings via the front panel music / configuration connector (
♫
/io)
without the necessity of removing the unit from the panel.
1.2
Features Overview
The JA95-091 features a 37-pin D-Sub connector, which interfaces with the radio receive audio and crew phones, a
50-pin D-Sub connector which interfaces with the power and passenger headset connections. This layout minimizes
crosstalk and follows industry standard interconnect for multi-user Audio Controllers.
Many of the input and output levels are adjustable, several audio paths are selectable, and alert audio analog
waveforms can be loaded using the configuration program ProCS™ (
Pro
duct
C
onfiguration
S
oftware) to write
configuration commands via the JA99-001 configuration cable to the front panel music / configuration connector. The
audio waveforms are stored in non-volatile devices. The alert audio feature is intended for use as a secondary alerting
system where another device provides the primary annunciation.
The JA95-091 provides intercom functions for up to seven users. It supports up to 5 transceivers and a PA position,
each selectable from a rotary switch, and up to 4 receivers (2 on each of 2 toggle switches).
The JA95-091 features individual VOX gating, and supports one Direct Audio input to provide audio at a fixed level to
the users.
The JA95-091 has a CVR output and a three channel Alert Generator. Each alert has a separate key input.
The JA95-091 allows transmit access for four crew members (Pilot, Co-pilot, Passenger 1 and Passenger 2).
A Music / Configuration connector is provided on the faceplate of the JA95 for configuration of audio levels and
routing. The port can also be used as a music input and is compatible with most music players.
The JA95-091 supports two unidirectional ICS inputs and one output.
The JA95-091 has a Music Select switch.
The JA95-091 has two modes of operation: Normal Mode and Emergency Mode.