Jupiter Avionics JA95-N42 User manual

JA95-N42
Audio Controller - Passenger RX ISO - NVG
Installation and Operating Manual
Rev. A
Jupiter Avionics Corporation
1959 Kirschner Road
Kelowna BC
Canada V1Y 4N7
Tel: [phone]
Toll-Free: 855-478-2232
www.jupiteravionics.com

JA95-N42 Audio Controller - Passenger RX ISO - NVG
Installation and Operating Manual
Rev A Page ii
Copyright 2015 Jupiter Avionics Corp.
All rights reserved
Jupiter Avionics Corporation (JAC) permits a single copy of this manual to be printed or downloaded for the express
use of an installing agency. Any such electronic or printed copy of this manual must contain the complete text of this
copyright notice. Any unauthorized commercial distribution of this manual is strictly prohibited. Except as described
above, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded, or stored in any
storage medium for any purpose without the express prior written consent of JAC.
RECORD OF REVISIONS
Revision
Rev Date
Description
ECR
3677
A
Aug 2015
Initial release, Serial number 1001 and higher.
Prepared:
MPB
Checked:
Approved:
IMPORTANT:
Information in this document is subject to change without notice.
To confirm the current revision status of this manual, visit the JAC website:
www.jupiteravionics.com
JAC
AH
09-11-15 JAC
KDV
09-11-15

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Installation and Operating Manual
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Table of Contents
SECTION 1 - DESCRIPTION ........................................................................................................................................... 1
1.1 System Overview .............................................................................................................................................. 1
1.2 Features Overview ............................................................................................................................................ 1
1.3 Inputs and Outputs ........................................................................................................................................... 2
1.3.1 Inputs ........................................................................................................................................................ 2
1.3.2 Outputs ..................................................................................................................................................... 2
1.3.3 Bi-directional Ports .................................................................................................................................... 2
1.4 Specifications .................................................................................................................................................... 3
1.4.1 Electrical Specifications ............................................................................................................................ 3
1.4.2 Mechanical Specifications ........................................................................................................................ 5
1.4.3 Flammability of Materials .......................................................................................................................... 5
SECTION 2 – INSTALLATION ........................................................................................................................................ 6
2.1 Introduction ....................................................................................................................................................... 6
2.2 Continued Airworthiness ................................................................................................................................... 6
2.3 Unpacking and Inspecting Equipment .............................................................................................................. 6
2.3.1 Warranty ....................................................................................................................................................... 6
2.4 Installation Procedures ..................................................................................................................................... 6
2.4.1 Cabling and Wiring ....................................................................................................................................... 6
2.4.2Mechanical Installation ................................................................................................................................. 7
2.4.3 In-Line PTT Cordsets .................................................................................................................................... 7
2.4.4 Legend Replacement .................................................................................................................................... 7
2.4.5 Post Installation Checks ............................................................................................................................... 7
2.5 Adjustments and Configuration using ProCS™ ............................................................................................... 8
2.5.1 Configuration Cabling Requirements ........................................................................................................ 8
2.5.2 ProCS™ Setup ......................................................................................................................................... 8
2.5.3 Configurable Settings ............................................................................................................................... 8
2.5.3 Other Configuration Features ................................................................................................................. 15
2.6 Installation Kit ................................................................................................................................................. 15
2.6.1 Recommended Crimp tools .................................................................................................................... 15
2.7 Installation Drawings ....................................................................................................................................... 15
2.7.1 Generation of Custom Drawings ............................................................................................................ 15
SECTION 3 – OPERATION ........................................................................................................................................... 16
3.1 Introduction ..................................................................................................................................................... 16
3.2 Front Panel Controls ....................................................................................................................................... 16
(1) Transceiver Select Switches and Legends ................................................................................................. 17
(2) Receiver Select Switches and Legends ..................................................................................................... 17
(3) Receive Volume Control ............................................................................................................................. 17
(4) Mode Switch ............................................................................................................................................... 17
(5) Passenger RX Isolation Switch (PXRX/ISO) .............................................................................................. 18
(6) Music/Configuration Connector (♫/io) ........................................................................................................ 18
(7) Transmit Annunciator - TX .......................................................................................................................... 18
(8) Transmit Selector ........................................................................................................................................ 18
(9) VOX Threshold Control ............................................................................................................................... 19
(10) CALL Annunciator ....................................................................................................................................... 19
(11) ICS Volume Control ................................................................................................................................... 19

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3.3 Normal Operation Mode ................................................................................................................................. 19
3.3.1 Panel Lighting ......................................................................................................................................... 19
3.3.2 Receiving ................................................................................................................................................ 20
3.3.3 Transmitting (Transmit Operation) .......................................................................................................... 20
3.3.4 FM2 PTT Operation ................................................................................................................................ 20
3.3.5 VOX Operation ....................................................................................................................................... 20
3.3.6 ICS Operation ......................................................................................................................................... 20
3.3.7 Call Annunciator Operation..................................................................................................................... 20
3.4 Emergency Operation Mode ........................................................................................................................... 21
3.4.1 Auto Emergency Mode ........................................................................................................................... 21
3.4.2 Selected Emergency Mode..................................................................................................................... 21
Appendix A - Installation Drawings ........................................................................................................................... A1
A1 Introduction ..................................................................................................................................................... A1
A2 Installation Drawings ....................................................................................................................................... A1
Appendix B - Installation Documents ........................................................................................................................ B1
B1 Airworthiness Approval ................................................................................................................................... B2
B2 Instructions for Continued Airworthiness ........................................................................................................ B2

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JA95-N42 Audio Controller - 3DVVHQJHU RX ISO - NVG
SECTION 1 - DESCRIPTION
1.1 System Overview
The JA95-N42 Audio Controller - Passenger RX ISO - NVG 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-N42 Audio Controller - Passenger RX ISO - NVG 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-N42 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. To facilitate future customizations and certification, no
software or complex electronic devices are used in the JA95-N42 design.
1.2 Features Overview
Many of the JA95-N42 input and output levels are adjustable, several audio paths are selectable, and alert audio
analog waveforms can be loaded using the configuration program ProCS™ (Product Configuration Software) 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 JA95-N42 provides intercom functions for up to seven users. It supports up to 6 transceivers, each selectable
from a rotary switch, and up to 5 receivers (two on one toggle switch and three on another).
The JA95-N42 features individual VOX gating, and supports two Direct Audio inputs to provide audio at a fixed level to
the users.
The JA95-N42 has a CVR output and a Call Alert Generator.
The JA95-N42 allows transmit access for two crew members (Pilot and Co-pilot).
A Music / Configuration connector is provided on the faceplate of the JA95-N42 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-N42 has two modes of operation: Normal Mode and Emergency Mode.
The JA95-N42 is NVIS Type I Class B compliant.
The JA95-N42 has a Passenger Receive Isolation switch.

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1.3 Inputs and Outputs
Refer to the JA95-N42 connector maps for the mating connector designators and pin assignments for the
input and output signals.
1.3.1 Inputs
Name
Qty
Type
ALERT ENABLE
1
Active high discrete
CALL ANNUNCIATOR
1
Active low discrete
CONFIG DATA TO JA95
1
Data signal
DIRECT AUDIO 1 HI/LO
1
Audio signal
DIRECT AUDIO 2 HI/LO
1
Audio signal (selected via ProCS)
FRONT PANEL MUSIC L/R
2
Audio signal
LIGHTS INPUT
1
Analog control signal
MIC HI/LO
7
Audio signal
MODE SELECT / CONFIG AUDIO
1
Multi format signal
MUSIC LEFT HI/LO
1
Audio signal (selected via ProCS)
MUSIC RIGHT HI/LO
1
Audio signal
PILOT and COPILOT ICS PTT
2
Active low discrete
PILOT and COPILOT TX PTT
2
Active low discrete
POWER INPUT
1
14 to 28 Vdc power supply
RX AUDIO HI/LO
11
Audio signal
1.3.2 Outputs
Name
Qty
Type
CVR HI/LO
1
Audio signal (selected via ProCS)
CONFIG DATA FROM JA95
1
Data signal
PHONES
7
Audio signal
Note: There are 6 outputs for driving 7 phones.
MIC HI/LO
6
Audio signal
PTT
6
Active low discrete
RX COMP OUT HI/LO
1
Audio signal (selected via ProCS)
1.3.3 Bi-directional Ports
Name
Qty
Type
ICS TIE HI/LO
1
Audio signal (selected via ProCS)

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1.4 Specifications
1.4.1 Electrical Specifications
Power Input
Primary nominal voltage 28 Vdc
Secondary nominal voltage 14 Vdc
Maximum voltage 32.2 Vdc
Minimum voltage 10.2 Vdc
Emergency voltage 9.0 Vdc
Input current at 28 Vdc ≤ 0.7 A
Input current at 14 Vdc ≤ 1.4 A
1.4.1.1 Audio Performance
Rated Input Level
Receive audio rated input level 7.75 Vrms ± 10%
Direct audio rated input level 7.75 Vrms ± 10%
Direct audio 2 rated input level 2.50 Vrms ± 10%
Music rated input level 400 mVrms ± 10%
Microphone input level 250 mVrms ± 10%
Intercom Tie Line type 1 input level 340 mVrms ± 10%
Intercom Tie Line type 2 input level 1.20 Vrms ± 10%
CONFIG AUDIO input level 400 mVrms ± 10%
Rated Output Level
Phone rated output 7.75 Vrms ± 10%
Pilot Phone rated output,
in emergency mode or with power input ≤6 Vdc 2.20 Vrms ± 10%
Phone rated output power,
with MUSIC input 3.88 Vrms ± 10%
Microphone rated output 250 mVrms ± 10%
CVR rated output 500 mVrms ± 10%
CVR rated output with input as MUSIC 250 mVrms ± 10%
CVR rated output with input as PILOT MIC 1.00 Vrms ± 10%
CVR rated output, in emergency mode, 500 mVrms ± 10%
Receive Composite rated output 2.5 Vrms ± 10%
Intercom Tie Line type 1 rated output 340 mVrms ± 10%
Intercom Tie Line type 2 rated output 1.2 Vrms ± 10%
Audio Frequency Response
Audio output audio frequency response ≤3dB from 300 to 6000 Hz
Alert audio output audio frequency response ≤3dB from 300 to 3000 Hz
Distortion Characteristics
Audio output distortion at rated power ≤ 10%
Audio output distortion at 10% of rated power ≤ 3%
Input Impedance
Microphone input Impedance 150 Ω ± 10%
Direct Audio input Impedance 1000 Ω ± 10%
Direct Audio 2 input Impedance 100 Ω ± 10%
Receive Audio input Impedance 1000 Ω ± 10%
Music Audio input Impedance 1000 Ω ± 10%
Intercom Tie Line Audio input Impedance 2000 Ω ± 10%

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Output Load
Phone load 600 Ω ± 10%
Transceiver Microphone load 150 Ω ± 10%
CVR load 5000 Ω ± 10%
Receive Composite Audio load 600 Ω ± 10%
Intercom Tie Line type 1 rated load 2000 Ω ± 10%
Intercom Tie Line type 2 rated load 2000 Ω ± 10%
Intercom Tie Line type 1 maximum load 666 Ω max (3 loads)
Intercom Tie Line type 2 maximum load 285 Ω max (7 loads)
Volume Controls
Receive Audio control variation 32 ± 3dB
ICS Audio control variation 42 ± 3dB
Input to output Crosstalk and Bleed-through Level
Input to Output crosstalk ≤ 55 dB
Input to Input Crosstalk Level
Input to Input crosstalk ≤ 60 dB
Audio Noise Level without Signal
Noise level below the rated output ≥ 60 dB
1.4.1.2 Audio Performance, Other
CVR HI / LO output circuitry type (Normal) differential
CVR HI / LO output circuitry type (Emergency) single ended
Microphone inputs designed for MIC type amplified dynamic
Microphone inputs bias voltage 11 Vdc ±10%
Microphone inputs circuitry type single ended
MUSIC LEFT / RIGHT HI / LO audio input circuitry type differential
FRONT MUSIC LEFT / RIGHT audio input circuitry type: single ended
MUSIC attenuation 40 dB max
RECEIVE AUDIO input circuitry type differential
PHN HI / LO output circuitry type single ended
MIC output circuitry type differential
RX Composite Audio output circuitry type differential
ICS TIE HI / LO Circuitry Type differential
PHN HI / LO output music fade in duration 2.5 ± 1.0 seconds
VOX Threshold level range relative to rated MIC input -30 to +12 dB
VOX Delay Time range 0.5 to 2.0 seconds
Transmit Timer duration 90 ± 30 seconds
1.4.1.3 Discrete Signals
Active low control input, active signal level ≤ +3 Vdc
Active low control input, inactive signal level ≥ +10 Vdc
Active low control input, current ≤ 10 mAdc
Active low control output, active output ≤ +2 Vdc
Active low control output, active, current ≤ 1 Adc
ALERT ENABLE signal active signal level ≥ +9 Vdc
ALERT ENABLE signal, when active, sinks ≤ 10 mAdc
ALERT ENABLE signal inactive signal level ≤ +3 Vdc
1.4.1.4 Lights Input
LIGHTS INPUT ranges 0 to 28, 0 to 14 and 0 to 5 Vdc
LIGHTS INPUT current 10 mA max.

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1.4.2 Mechanical Specifications
Height 1.875 in [47.63 mm] max
Behind panel depth 5.48 in [139 mm] max
Faceplate width 5.75 in [146 mm] max
Behind panel width 5.00 in [127 mm] max
Weight 1.64 lbs. [0.74 kg] max
Connectors (3): One 4 pole 3.5mm stereo jack
One 37-pin D-Sub male
One 50-pin D-Sub male
Mounting 4 Dzus fasteners
Bonding ≤ 2.5 mΩ
Installation kit part number INST-JA95
1.4.3 Flammability of Materials
The JA95-N42 complies with the requirements of RTCA/DO-160G Sec 26.3.3 'Flammability', through equivalent
flammability testing of materials and the Small Parts Exemption.

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JA95-N42 Audio Controller - 3DVVHQJHU RX ISO - NVG
SECTION 2 – INSTALLATION
2.1 Introduction
This section contains unpacking and inspection procedures, installation information, and post-installation checks.
2.2 Continued Airworthiness
Maintenance of the JA95-N42 is on condition only. Scheduled inspection and/or periodic maintenance of this unit is
not required.
2.3 Unpacking and Inspecting Equipment
Unpack the equipment carefully. Check for shipping damage and report any problems to the relevant carrier. Confirm
that the Authorized Release Certificate or Certificate of Conformance is included. Complete the on-line warranty card
from the Jupiter Avionics Corporation (JAC) website – www.jupiteravionics.com.
2.3.1 Warranty
Products manufactured by JAC are warranted to be free of defects in workmanship or performance for 2 years from
the date of installation by an approved JAC dealer or agency. This warranty covers the cost of all materials and labour
to repair or replace the unit, but does not include the cost of transporting the defective unit to and from JAC or its
designated warranty repair centre, or of removing and replacing the defective unit in the aircraft. This warranty does
not cover failures due to abuse, misuse, accident, or unauthorized alteration or repairs.
THIS WARRANTY IS VOID IF THE PRODUCT IS NOT INSTALLED BY AN AUTHORIZED JAC DEALER. If the on-
line warranty card is not completed, the product will be warranted from the date of manufacture.
Contact JAC for return authorization, and for any questions regarding this warranty and how it applies to your unit(s).
JAC is the final arbiter concerning warranty issues.
2.4 Installation Procedures
WARNING: Loud noise can cause hearing damage. Set the headset volume to minimum before
conducting tests, and slowly increase the volume to a comfortable listening level.
CAUTION: The power input circuitry of the unit may be damaged if the installation does not conform to the
wiring instructions in this manual.
2.4.1 Cabling and Wiring
All wire shall be selected in accordance with the original aircraft manufacturer’s maintenance instructions, or AC43.13-
1B Change 1, Paragraphs 11-76 through 11-78. Unshielded wire types shall qualify to MIL-W-22759 as specified in
AC43.13-1B Change 1, Paragraphs 11-85, 11-86, and listed in Table 11-11. For shielded wire applications, use Tefzel
MIL-C-27500 shielded wire with tag ring or equivalent (for shield terminations) to make the most compact and easily
terminated interconnect. Follow the Connector Map in Appendix A of this manual.
Allow 3” from the end of the shielded wiring to the shield termination to allow the connector hood to be easily installed.
Refer to the Interconnect drawing in Appendix A of this manual for shield termination details. Note that this unit has a
‘clamshell’ hood that is installed after the wiring is complete.
Maintain wire segregation and route wiring in accordance with the original aircraft manufacturer’s maintenance
instructions.

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Unless otherwise noted, all wiring shall be a minimum of 24 AWG, except power and ground lines, which shall be a
minimum of 22 AWG. Refer to the Interconnect drawing for additional specifications. Check that the ground
connection is clean and well secured, and that it shares no path with any electrically noisy aircraft accessories such
as blowers, turn-and-bank instruments, or similar loads.
2.4.2 Mechanical Installation
The JA95-N42 can be mounted in any attitude and location with adequate space for the front panel and sufficient
clearance for the connector and wiring harness. It requires no direct cooling.
2.4.3 In-Line PTT Cordsets
If in-line PTT cordsets (drop cords) are used, be aware that incorrectly configured or improperly shielded in-line PTT
cordsets can lead to significant audio problems.
2.4.4 Legend Replacement
The JA95-N42 illuminated legends are field replaceable. For further information, refer to the ‘Legend Replacement’
document in Appendix A of this manual.
2.4.5 Post Installation Checks
2.4.5.1 Voltage/Resistance checks.
Do not attach this unit until the following conditions are met:
a) Check P1 pin 19 for lights buss voltage.
b) Check P2 pins 16 and 17 for +28 Vdc relative to ground.
c) Check P2 pin 34 for continuity to ground (less than 0.5 Ω).
d) Check P2 pins 7 thru 10 for continuity to ground (less than 0.5 Ω) when the relevant switch is closed.
e) Check all pins for shorts to ground or adjacent pins.
2.4.5.2 Configuration
Ensure that the JA95-N42 contains the correct configuration settings. This may be done at the factory, on the
maintenance bench or in the aircraft before the power on checks are performed. Refer to section 2.5.1.
2.4.5.3 Power on Checks.
Power up the aircraft’s systems and confirm normal operation of all functions of the JA95-N42. Refer to
Section 3 (Operation) for specific operational details.
a) Begin with only the pilot’s headset attached. Confirm correct ICS and radio operation for both receive and
transmit. Check yoke or cyclic switch action. Check the radio selection and inputs. Do not proceed until the
radios are functioning correctly.
b) If there is a music source in the system, turn it on and check for proper mute operation.
c) Unusual buzzes, hums or other background audio are symptomatic of multiple grounds, or noisy external
systems such as blowers or pumps sharing wiring with the audio system. If a transmitter fails to key or
correctly modulate it is often the result of not connecting all required grounds to the radio or external audio
system.
d) Check the ICS and Emergency operation.
e) Plug in the co-pilot’s headset. Check for correct ICS operation. Check yoke or cyclic switch functions.
f) Plug in any remaining headsets, and check for correct ICS operation. Note that an incorrect cordset (drop cord)
or improper jack wiring may cause a wide range of problems, from loss of audio to a tone heard in the headset.
g) Check that all configurations settings are correct.
When all performance checks are satisfied, complete the necessary regulatory documentation before releasing the
aircraft for service. Refer to Appendix B.

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2.5 Adjustments and Configuration using ProCS™
All the JA95-N42 internal adjustments are set from the Product Configuration Software ProCS™. Configuration data
is sent to the JA95-N42 via the front panel connector (♫/io), using the Configuration Cables and a computer running
the ProCS™ software. . For configuration requirements, see section 2.5.1.
For full information on the configuration process, refer to the ProCS™ manual on the Jupiter Avionics website.
For full information on the configuration process, and for installation of ProCS™ on your computer, refer to the
ProCS™ manual on the Jupiter Avionics website - www.jupiteravionics.com/productsoftware.
2.5.1 Configuration Cabling Requirements
To configure the JA95-N42, it is necessary to load the Product Configuration Software ProCS™ onto a Windows-
based computer as described in the ProCS™ manual.
The cables required to configure the JA95-N42 are not included with the unit.
Cabling option 1:
Quantity Description JAC Part #
1 USB A to RS232 9-Pin Cable CAB-USB-0002
1 Configuration Cable JA99-001
Cabling option 2:
Quantity Description JAC Part #
1 USB A Male to RS232 3.5mm Plug CAB-USB-0006
2.5.2 ProCS™ Setup
The JA95-N42 menu item 'ProCS Setup' provides a drawing showing the cabling arrangement (using the
JA99-001 and CAB-USB-0002) for connecting the JA95-N42 to a computer to allow configuration using ProCS™.
2.5.3 Configurable Settings
A standard unit is shipped from the factory with all internal adjustments configured to the default levels. At installation,
it may be desirable to change some of these settings to suit the local operating environment.
Note: To properly configure the JA95-N42 power must be applied
Within ProCS™, the configurable settings are grouped together as shown in sections 2.5.3.1 to 2.5.3.14.

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2.5.3.1 Front Panel Switches
The Front Panel Switches window is used to specify the text for each legend.
Note: If the name of a front panel switch is changed using this software, the change will be incorporated in
every other section that refers to that switch name, including the connector maps, to give truly customized
installation diagrams.
2.5.3.2 Radios
The Radios window is used to define the
radios for the transceivers and receivers.

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2.5.3.3 Receive Levels
The receive and direct audio input level of each of the eleven RX and the
DIRECT AUDIO inputs can be adjusted from 1 to 10 Vrms. (Default 7.75 Vrms)
The Receive Audio Detector threshold can be adjusted from
-36 to -12 dB of rated input level. (Default -24 dB)
The level of the receive composite audio output (RX COMP OUT)
can be adjusted from 0.25 to 2.5 Vrms. (Default 1.00 Vrms)

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2.5.3.4 Transmit Levels
When the Transmit Timeout check box is checked the transmit time-out
is enabled (Default not checked)
When the FM2 Duplex check box is checked the COM5 (FM2) radio is
set to duplex operation (Default not checked) (see section 3.3.4)
2.5.3.5 Sidetone Levels
2.5.3.6 Connector Pin Configuration
The level of each of the six Transceiver MIC output signals can be
adjusted from 0.01 to 1 Vrms. (Default 250 mVrms)
The Receive Sidetone Level can be adjusted from 0 to
-12 dB of the rated phone Level. (Default -6 dB)
Several of the connector pins can be
configured to meet the requirements of
specific installations.
Refer to JA95-N42 Interconnect sheet 5 of 5.

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2.5.3.7 Alerts
WARNING: The internal audio alert is intended only to supplement, NOT replace, airframe alerts such
as ‘low rotor RPM’, ‘engine out’ or ‘decision height alerting’. The alert audio feature is intended for
use as a secondary alerting system where another device provides the primary annunciation.
Audio Files
The JA95-N42 has standard audio signals for the alert, and the audio files window allows this signal to be
customized with other recordings during the configuration process.
Saving new Audio Files
2.5.3.8 Audio Muting (During Transmit)
When the Mute RX Audio check box is checked the Receive
Audio is muted during transmit. (Default checked)
When the Mute ICS Audio check box is checked the ICS Audio
is muted during transmit. (Default checked)
When the Mute Alert Audio check box is checked the Alert
Audio is muted during transmit. (Default not checked)
The Mute Music Audio check box is always checked
(i.e. Mute Music Audio is always enabled.)
If a new audio file is selected, it may be played using the arrow
to the right of the Message line.
It may be uploaded to the JA95-N42 using the 'Program' menu
and selecting 'Program JA95-N42 Messages…'
Note that this pane will have different content if a JA95-N42 is
not connected.
The level of the Alert Audio signal is adjustable from 0 to -40 dB of
the rated phone level.(Default -12 dB)

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2.5.3.9 CVR Level
2.5.3.10 Music Levels
The music output level of the four Music input signals to the Phones audio can be adjusted from -40 to 0 dB of
rated phone level (Default 0 dB).
When the 'Configure M/D Switch as Music Selector'
check box is checked the M/D switch becomes a music
select switch (Default not checked)
The output levels of the Cockpit Voice Recorder audio
may be adjusted as shown.
The Music Input Levels may be adjusted from 0.10 to 1.00 Vrms. (Default 0.40 Vrms).
The attenuation level during muting of the music signal
can be adjusted from 0 to -40 dB (Default -40 dB).

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2.5.3.11 ICS Tie Line
The rated input and output levels of the intercom tie line can be selected as Type 1 or Type 2 (Default Type 2).
The quantity of external loads for a type1 intercom tie line can be selected from 0 to 3 (Default 0).
The quantity of external loads for a type 2 intercom tie line can be selected from 0 to 7 (Default 0).
2.5.3.12 Lighting Voltage Selection
The rated input level for the lighting voltage
may be selected from
+5 Vdc, +14 Vdc or +28Vdc
(Default +28 Vdc).
2.5.3.13 VOX
When the PAX Drop Cord Enable check box is checked, the VOX circuits for the passenger microphones are
configured for use with drop cords (Default not checked)
2.5.2.14 Connector Maps
This section contains connector maps and interconnects that are automatically generated to show changes that affect
the installation of the JA95-N42, such as switch labels and voltages. See section 2.7.1.
The VOX OFF Delay Time can be adjusted
from 0.50 to 2.00 sec (Default 1 sec).

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2.5.3 Other Configuration Features
The model number, serial number and check sum of the JA95-N42 Audio Controller - Passenger RX ISO - NVG can
be entered and viewed in the Comments pane of the JA95-N42 Product Information Window for future reference.
2.6 Installation Kit
The kit required to install this unit is not included with the unit.
The installation kit (Part # INST-JA95) consists of the following:
Quantity Description JAC Part #
2 TAG ring CON-5500-0625
1 D-Sub 37-pin connector, hood and 37 crimp pins CON-3420-0037
1 D-Sub 50-pin connector, hood and 50 crimp pins CON-3420-0050
2 Heat Shrink Tubing WIR-HTSK-1000
2.6.1 Recommended Crimp tools
Connector Type
Hand crimp tool
Positioner
Insertion/extraction tool
Positronic
9507
9502-3
M81969/1-04
Positronic
AFM8 (Daniels)
M22520/2.08 KB-1
2.7 Installation Drawings
The drawings and documents required for Installation can be found in Appendix A of this manual.
2.7.1 Generation of Custom Drawings
The interconnects and connector maps in Appendix A of this manual are generic drawings based on the standard
version of the JA95-N42. However, if a unit has been configured using JAC’s ProCS™ software to change switch
legends or lighting voltages, the software can be used to generate fully customized interconnects and connector maps
for use by the installer.

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JA95-N42 Audio Controller - 3DVVHQJHU RX ISO - NVG
SECTION 3 – OPERATION
3.1 Introduction
This section contains the operating instructions for the JA95-N42.
3.2 Front Panel Controls
Note: The 15 legends and two annunciators are removable and may be replaced with custom ordered parts.
For the purpose of this manual the controls will be referred to by the default legend and annunciator names as
shown below.
1. Transceiver select switches, TX select annunciators and associated legends
2. Receiver select switches and associated legends
3. Receive volume control
4. Mode switch
5. Passenger Receive Isolation Switch
6. Music/configuration input connector and legend
7. Transmit annunciator (deadfront)
8. Transmit selector
9. VOX threshold control
10. CALL annunciator (deadfront)
11. ICS volume control
1
2
3
10
6
5
4
7
8
11
9