9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
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Document P/N 200-890-0414
Rev. 2, May 2016
Audio Selector Panel with Marker Beacon Receiver
High-fidelity Stereo Intercom
Designed specifically for Dual Audio Panel Configurations
System Installation and Operation Manual
FAA- TSO C50c, C35d
EASA ETSO C50c, 2C35d
Patented under one or more of the following;
No. 4,941,187; 5,903,227; 6,160,496 and 6,493,450
PS Engineering, Inc. 2016 ©
Copyright Notice
Any reproduction or retransmittal of this publication, or any portion thereof, without the expressed written permission of PS
Engineering, Inc. is strictly prohibited. For further information contact the Publications Manager at PS Engineering, Inc., 9800
Martel Road, Lenoir City, TN 37772. Phone (865) 988-9800, email contact@ps-engineering.com.
In certified aircraft, warranty is not valid unless this product is installed by an
Authorized PS Engineering dealer.
9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
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A88000000
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Document P/N 200-890-0414
Rev. 2, May 2016
High-fidelity Stereo Intercom
FAA- TSO C50c, C35d
EASA ETSO C50c, 2C35d
PS Engineering, Inc. 2016 ©
Copyright Notice
Table of Contents
Section I – GENERAL INFORMATION............................................. 1-1
1.1 INTRODUCTION............................................................................................................................................. 1-1
1.2 SCOPE ............................................................................................................................................................... 1-1
1.3 EQUIPMENT DESCRIPTION........................................................................................................................ 1-1
1.4 APPROVAL BASIS .......................................................................................................................................... 1-2
1.5 SPECIFICATIONS................................ ........................................................................................................... 1-3
1.6 EQUIPMENT SUPPLIED................................................................................................................................ 1-4
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED ....................................................................................... 1-4
1.8 OPTIONAL ITEMS.......................................................................................................................................... 1-4
1.9 LICENSE REQUIREMENTS.......................................................................................................................... 1-4
Section II - INSTALLATION ...................................................... 2-1
2.1 GENERAL INFORMATION........................................................................................................................... 2-1
2.1.1 SCOPE.............................................................................................................................. 2-1
2.1.2 CERTIFICATION REQUIREMENTS ...................................................................................... 2-1
2.2 UNPACKING AND PRELIMINARY INSPECTION ..................................................................................................... 2-1
2.3 EQUIPMENT INSTALLATION PROCEDURES................................................................................................ .......... 2-1
2.3.1 COOLING REQUIREMENTS ................................................................................................ 2-1
2.3.2 MOUNTING REQUIREMENTS ............................................................................................. 2-1
2.3.3 AUDIO PANEL MOUNTING RACK INSTALLATION ............................................................. 2-1
2.3.4 AUDIO PANEL TRAY AND CONNECTOR ASSEMBLY ......................................................... 2-2
2.4 CABLE HARNESS WIRING ................................................................................................................................... 2-2
2.4.1 ELECTRICAL NOISE........................................................................................................... 2-2
2.4.2 POWER .............................................................................................................................. 2-3
2.4.3 AUDIO PANEL INTERFACE ................................................................................................ 2-3
2.4.4 COCKPIT SPEAKER ............................................................................................................ 2-3
2.4.5 BACKLIGHTING ................................................................................................................. 2-3
2.4.6 UNSWITCHED INPUTS........................................................................................................ 2-3
2.4.7 "SWAP" MODE .................................................................................................................. 2-4
2.4.8 BLUETOOTH TELEPHONE FUNCTION ................................................................................ 2-4
2.4.9 PUBLIC ADDRESS MODE................................................................................................... 2-4
2.4.10 PA MUTE (J2, PIN 12)..................................................................................................... 2-5
2.4.11 MISCELLANEOUS LOGIC OUTPUT (J2, PIN 18) ............................................................... 2-5
2.4.12 MARKER HIGH SENSITIVITY (J2 PIN 13) ........................................................................ 2-5
2.4.13 DUAL AUDIO PANEL CONNECTIONS .............................................................................. 2-5
2.4.14 CVR OUTPUT (J2, PIN 4) ................................................................................................ 2-6
2.5 INTERCOM WIRING .............................................................................................................................................. 2-6
2.5.1 ENTERTAINMENT INPUTS.................................................................................................. 2-6
2.5.2 ENTERTAINMENT MUTING ................................................................................................ 2-6
2.5.3 PLAYBACK BUTTON INSTALLATION ................................................................................. 2-7
2.5.4 PASSENGER INTERCOM EXPANSION (INTELLIPAX) ......................................................... 2-7
2.6 MARKER BEACON INSTALLATION ...................................................................................................................... 2-7
2.6.1 MARKER ANTENNA INSTALLATION ................................................................................. 2-7
2.6.2 EXTERNAL MARKER LIGHTS ............................................................................................ 2-7
2.6.3 MIDDLE MARKER SENSE .................................................................................................. 2-7
2.6.4 MARKER SENSITIVITY SWITCH (J2 PIN 13)....................................................................... 2-7
2.6.5 MARKER AUDIO INPUT ..................................................................................................... 2-7
2.7 ADJUSTMENTS ..................................................................................................................................................... 2-8
2.8 COMMUNICATIONS ANTENNA INSTALLATION NOTES ........................................................................................ 2-9
2.9 PMA8000E PIN ASSIGNMENTS ......................................................................................................................... 2-10
2.10 WIRING CHECKOUT ................................................................ .......................................................................... 2-11
2.11 UNIT INSTALLATION ......................................................................................................................................... 2-11
2.12 OPERATIONAL CHECKOUT ............................................................................................................................... 2-11
2.12.1 REQUIRED TEST EQUIPMENT ........................................................................................ 2-11
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page ii Rev. 2, May 2016
2.12.2 AUDIO PANEL TEST ...................................................................................................... 2-11
2.12.3 MARKER CHECKOUT .................................................................................................... 2-12
2.12.4 BLUETOOTH TELEPHONE CHECKOUT ........................................................................... 2-12
2.12.5 INTERNAL RECORDER CHECKOUT ................................................................................ 2-12
2.13 FINAL INSPECTION ................................ ............................................................................................................ 2-12
Section III OPERATION.......................................................... 3-1
3.1 SCOPE ............................................................................................................................................................... 3-1
3.2 COMMUNICATIONS TRANSMIT (XMT) SELECTION (2)................................................................ ....................... 3-1
3.1 COMMUNICATIONS RECEIVER (RCV) SELECTION (3) ....................................................................................... 3-1
3.2 AUDIO SELECTOR (4).......................................................................................................................................... 3-2
3.3 BLUETOOTH TELEPHONE.................................................................................................................................... 3-2
3.3.1 PASSENGER ON CELL PHONE ............................................................................................. 3-3
3.3.2 CELL PHONE SIDETONE .................................................................................................... 3-3
3.4 COCKPIT SPEAKER (5) ................................................................................................................................ ........ 3-3
3.4.1 PUBLIC ADDRESS FUNCTION ............................................................................................ 3-3
3.5 MARKER BEACON OPERATION (9) (APPLIES TO -0514 & -0515 ONLY).............................................................. 3-3
3.5.1 MARKER TEST AND MUTE................................................................................................ 3-4
3.5.2 EXTERNAL MARKER AUDIO INPUT .................................................................................. 3-4
3.6 INTERCOM OPERATION....................................................................................................................................... 3-4
3.6.1 INTELLIVOX® VOX-SQUELCH.......................................................................................... 3-4
3.6.2 INTERCOM VOLUME CONTROL (7) ................................................................................... 3-5
3.6.3 INTERCOM MODES (8) ...................................................................................................... 3-5
3.7 MUSIC AND MUSIC MUTING (6) .......................................................................................................................... 3-6
3.8 BLUETOOTH® INTERFACE .................................................................................................................................. 3-7
3.8.1 PAIRING AND UNPAIRING BLUETOOTH DEVICES .............................................................. 3-7
3.9 INTERNAL RECORDER AND PLAYBACK ............................................................................................................... 3-7
Section IV – Warranty and Service ................................................. 4-1
4.1 WARRANTY ................................................................................................................................ ......................... 4-1
4.2 FACTORY SERVICE .............................................................................................................................................. 4-1
Appendix A – PMA8000E Installation Drawings .................................................................................A
Appendix B –PMA8000E Radio Interconnect .................................................................................. B
Appendix C – PMA8000E Audio Interconnect ..................................................................................C
Appendix D – Instructions for FAA Form 337 and continuing airworthiness ...................................D
8.1 INSTRUCTIONS FOR FAA FORM 337, AUDIO PANELS ........................................................................................... D
8.2 INSTRUCTIONS FOR CONTINUING AIRWORTHINESS , AUDIO SYSTEM ................................................................... D
Appendix E – RTCA DO160D Environmental Qualification Form ........................................................ E
Rev
Date
Change
0
March 2015
Release of PMA8000E
1
August 2015
Change Music behavior to turn music off when ISO mode is invoked on intercom §3.6.3
2
May 2016
Clarify Marker Audio Input for -0414 and -0415 versions (§2.6.5, §3.1.2)
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 1-1 Rev. 2, May 2016
Section I – GENERAL INFORMATION
1.1 INTRODUCTION
The PMA8000E represents another evolutionary step in cockpit audio control and intercommunications
utility. Using our patented IntelliVox® design and pilot programmable configurations, this marks the next
level of audio control. The unit is designed for outstanding ergonomics and visually def ined mode annunciation and selection. The PMA8000E is specifically designed to be used in a dual audio panel environment;
where the pilot and copilot positions have independent control over the radio audio control. The
PMA8000E units communicate information between the units to make the operation logical and utilitarian,
and avoid operations that are inconsistent with radio and cockpit communication practices.
Before installing and/or using this product, please read this manual completely. This will ensure that you
will take full advantage of all the advanced features in the PMA8000E.
1.2 SCOPE
This manual provides detailed installation and operation instructions for the PS Engineering PMA8000Eseries of Audio Selector Panel/Intercom Systems. This includes the following units:
Unit Part Number
Backlighting
Bezel
Marker Beacon
CVR Output
050-890-0414
14/28 VDC
BlackNoYes
050-890-0415
5 VDC
BlackNoYes
050-890-0514
14/28 VDC
Black
Yes
Yes
050-890-0515
5 VDC
Black
Yes
Yes
Each ship set requires two units and installation kits.
1.3 EQUIPMENT DESCRIPTION
The PMA8000E is a state-of-the-art audio isolation amplifier and audio selector that contains an automatic
voice activated (VOX) intercom system and integral marker beacon receiver. It can switch three transceivers (COM 1, COM 2, COM 3) and six receivers (NAV 1, NAV 2, ADF, AUX (DME), and MKR.
The PMA8000E was designed specifically for installations requiring Dual Audio Panels, because the pr imary audio panel sends status information to the secondary audio panel to prevent undesirable operation
modes such as simultaneous transmission on the same radio by both crew members, and primary control
over the intercom modes.
A full duplex telephone interface allows the PMA8000E to act as an audio connection between aircraft
headphone and microphones and specific aircraft approved (FAA/FCC) equipment with the Bluetooth®
interface.
Warning: Use of non-aviation approved cellular telephone equipment may be prohibited by FCC regulation.
PS Engineering is not responsible for unauthorized airborne use of cellular telephones.
For airborne use, the PMA8000E must be interfaced with an approved system.
There are four unswitched inputs, available for traffic or EGPWS, autopilot disconnect, and/or radar altim eter warning. Unswitched input 3 is adjustable, see page § 2.4.8
Pushbuttons select the receiver audio source provided to the headphones. A SPR button allows the user to
listen to the receiver(s) selected on the cabin speaker. Except for the unswitched inputs, all speaker aud io is
muted during transmit. Unswitched inputs 1, 3, and 4 are always presented to the aircraft speaker.
Unswitched input 2 will be presented to the speaker when the SPR push button has been selected. Pushbutton switches select one of the communication transceivers.
A fail-safe mode connects the crewmembers’ headphone and microphone to COM 1 if power is removed
for any reason, or if the power switch is placed in the Off (Fail -safe) position.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 1-2 Rev. 2, May 2016
NOTE: Both crew members are connected to COM 1 in fail -safe. There is no priority, and in some cases
microphone loading may make it necessary to unplug one crew member’s microphone for optimum tran smission quality.
A voice activated (VOX) intercom is included in the PMA8000E. This system has PS Engineering’s patented IntelliVox® circuitry that eliminates manual adjustments. The intercom system incorporates pilot
isolate, all and crew modes, two independent stereo music inputs with "SoftMute™". Intercom volume
control is through two concentric front panel knobs and a pushbutton intercom mode switch. The small
volume knob controls the intercom level for the pilot and copilot, while the large knob on the copilot audio
panel controls the passenger intercom volume. Intercom squelch is automatic.
A 3-light, 75 MHz Marker Beacon receiver is integrated in certain versions of the PMA8000E (-0514, -
0515). This provides the necessary Marker Beacon lights and audio indications necessary for that portion of
an Instrument Landing System (ILS) approach. A pushbutton labeled MKR allows the pilot select high or
low sensitivity as well as test and mute modes.
In the PMA8000E, a Bluetooth® wireless interface is available for wireless telephone and music connection.
1.4 APPROVAL BASIS
FAA TSO Approval.
The PMA8000E-series Audio Selector Panels are FAA approved under TSO C50c (Audio Ampli fiers) and
TSO C35d (Marker Beacon Receivers), ETSO C50C/ and 2C53d.
All systems comply with relevant portions of EUROCAE RTCA MPS WG No. 7/70, DO -143 and (Marker
Beacon Receivers), ED-14C/DO-160C (Environmental Conditions and Test Procedures for Airborne
Equipment), ED12B/DO-178B, Level D (Software Considerations for Airborne Equipment ) and ED-
18/DO-214 (Audio Systems Characteristics and Minimum Operational Performance Standards for Aircraft
Audio Systems).
Operation is subject to the following conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired oper ation.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 1-3 Rev. 2, May 2016
1.5 SPECIFICATIONS
TSO COMPLIANCE
Marker Beacon:
FAA TSO C35d, Class A ETSO 2C35d
Audio Selector/Intercom:
FAA TSO C50c, Class 1a ETSO C50c
APPLICABLE DOCUMENTS:
RTCA/DO-214 RTCA/DO-143 RTCA/DO-160D
Depth behind panel 7.15 in. (18.16 cm)
WEIGHT
PMA8000E Unit
Rack with connectors
1.34 lb. (0.61 kg)
0.51 lb. (0.24 kg)
POWER REQUIREMENTS (Including Internal Lighting):
Voltage:
11 to 33 VDC
Maximum Current:
2.5 Amp (Externally protected by a 5A pull-type breaker)
Audio Selector Specifications
Audio selector panel input impedance:
510
Input Isolation:
-60 dB (min.)
Speaker Muting:
-60 dB (min.)
Speaker Output (into 4 ) with no clipping
14 VDC:
28 VDC:
3 Watts (min.)
10 Watts (min.)
Receiver Inputs:
9 (COM 1, COM 2, COM 3, NAV 1, NAV 2, ADF,
DME, MKR, AUX)
Unswitched Inputs:
4
Transmitter Selections:
6 (COM 1, COM 2, COM 3
Com1/2 COM 1/3, COM 2/3)
Speaker Impedance:
4
Headphone Impedance:
150 – 1000
Headphone Output:
38 mW each headset, no clipping <1% THD typical
Microphone Impedance:
150 - 600
Bluetooth Radio (PMA8000E -0304 only)
Class 3, FCC ID QOQWT32AE
Intercom Specifications
Intercom Positions:
6 places (with individual IntelliVox® circuits)
Music Inputs:
2, (Independent, Stereo)
Music Muting:
>-30 dB "Soft Mute" when COM or intercom active.
Distortion:
<1% THD @ 38 mW into 150
Mic Freq. Response, 3 dB:
300 Hz - 6000 Hz
Music Freq. Response, 3 dB:
10 Hz – 26 kHz
MARKER BEACON RECEIVER (-0514 & -0515):
Frequency:
75 MHz Crystal Controlled
Sensitivity:
Low:
High:
Capable of: (preset at factory for field application)
1000 Volts (Hard) (360 to 570 V soft)
200 Volts (Hard) (130 to 200 V soft)
Selectivity:
-6 dB at ±10 kHz
-40 dB at ±120 kHz
External Lamp Output:
7.5 (±4 VDC unloaded, at maximum brightness) VDC
positive when active, max. current 125 mA
MM Sense:
Active high (4.5 ± 1.0VDC)
ENVIRONMENTAL Qualifications:
Operating Temperature Range:
Altitude:
DIMENSIONS:
RTCA/DO-178B DO-254
A1D1CABSMXXXXXXZBABATBXXE2XXX
-15º C to 55ºC
Up to 50,000 feet in an non-pressurized area
Height: 1.3 in. (3.3 cm) Width: 6.25 in. (15.9 cm)
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 1-4 Rev. 2, May 2016
1.6 EQUIPMENT SUPPLIED
One ship set includes 2 ea. of the following units:
Model
Description
Part Number
PMA8000E
Stereo Audio Selector Panel, Bluetooth® interface and Internal Recorder Sy stem. This supports three com transceivers.
Designed specifically for Dual Audio Panel Installation.
2 ea. 050-890-0414
PMA8000E
Same as above, with 5VDC backlighting
2 ea 050-890-0415
PMA8000E
Stereo Audio Selector Panel with Marker Beacon, Bluetooth® interface and
Internal Recorder System. This supports three com transceivers.
Designed specifically for Dual Audio Panel Installation.
2 ea. 050-890-0514
PMA8000E
Same as above, with 5VDC backlighting
2 ea 050-890-0515
PMA8000E Installation Kit: 250-890-0000 (2 kits required for dual installation)
Description
Quantity
Part Number
Installation rack assembly
1
430-890-0040
Rack back plate
1
430-890-0050
44-pin connector kit
2
120-891-2045
Backshell, connector
2
625-025-2465
Backshell Mounting Blocks
2
431-891-0100
4 40 X 7/16 screw w/nylon patch
4
475-440-0007
4 40 X 3/8 screw w/nylon patch
4
475-440-1038
4-40 x ¼” screw with lock washer
2
475-440-0001
Grounding Solder Lug
2
475-009-0001
Cable Clamp
1
625-001-0002
#6-32 x ½” Flat head Philips screw
6
475-632-0012
#6-32 Clip Nut
6
475-630-0002
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED
a. Circuit Breaker: 1 ea; 5 amp PULL TYPE REQUIRED for PMA8000E
b. Speaker, 4
c. Headphone Jacks (Stereo, as Required)
d. Microphone Jacks (as Required)
e. Headphones, 150 (Stereo), up to 6 as required
f. Microphones, up to 6 as required
g. Marker Antenna (75 MHz, VSWR <1:1.5, and appropriate for the airspeed)
h. Interconnect Wiring
1.8 OPTIONAL ITEMS
a. Music Patch Cord, 3.5mm to 2.5mm, PS Part Number 425-006-2535
b. Passenger intercom unit, IntelliPAX, if desired 11636Remote
1.9 LICENSE REQUIREMENTS
None
PMA8000E Bluetooth™ Radio approval:
FCC ID: QOQWT32AE
Industry Canada ID: 5123A-BGTWT32AE
CE EMC Directive 89/336/EEC as amended by Directives 92/31/EEC and 93/68/EEC
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-1 Rev. 2, May 2016
Section II - INSTALLATION
2.1 GENERAL INFORMATION
2.1.1 SCOPE
This section provides detailed installation and interconnection instructions for the PS Engineering
PMA8000E Audio Selector Panel/Intercom/ with internal Marker Beacon.
Please read this manual carefully before beginning any installation to prevent damage and post -installation
problems. Installation of this equipment requires special tools, test equipment (refer to section 2.12.1)
and knowledge as required by 14 CFR 65.81 (b).
2.1.2 Certification Requirements
NOTE
The PMA8000E requires specialized knowledge and tools for an effective installation. An appropr iately
rated Certified Aircraft Repair Station must install this equipment in accordance with applicable regulations. PS Engineering, Incorporated warranty is not valid unless the equipment is installed by an authorized
PS Engineering, Incorporated dealer.
Failure to follow any of the installation instructions, or installation by a non-certified individual or agency
will void the warranty, and may result in an unairworthy installation.
2.2 Unpacking and Preliminary Inspection
Use care when unpacking the equipment. Inspect the units and parts supplied for visible signs of shipping
damage. Examine the unit for loose or broken buttons, bent knobs, etc. Verify the correct quantity of co mponents supplied with the list in Section 1.6. If any claim is to be made, sav e the shipping material and contact the freight carrier. Do NOT return units damaged in shipping to PS Engineering. If the unit or accessories show any sign of external shipping damage, contact PS Engineering to arrange for a replacement.
Under no circumstances attempt to install a damaged unit in an aircraft. Equipment returned to PS Eng ineering for any other reason should be shipped in the original PS Engineering packaging, or other UPS
approved packaging.
2.3 Equipment Installation Procedures
2.3.1 Cooling Requirements
Forced air-cooling of the PMA8000E is not required. However, the units should be kept away from heat
producing sources (i.e. defrost or heater ducts, dropping resistors, heat producing avionics) without ad equate cooling air provided.
2.3.2 Mounting Requirements
Each PMA8000E must be rigidly mounted to the instrument panel of the aircraft structure, within view and
reach of the flight crew position. Installation must comply with FAA Advisory Circular AC 43.13 -2B, or
other FAA-approved aircraft technical data. The unit may be mounted in any area where adequate clea rance for the unit and associated wiring bundle exist.
To prevent noise, avoid installing the unit close to high current devices or systems with high -voltage pulse
type outputs, such as DME or transponders. Avoid running the interconnecting bundles near any high cu rrent wires.
2.3.3 Audio Panel Mounting Rack Installation
Remove the unit from the mounting tray by unscrewing the 3/32" hex -head screw that is in the center of the
unit. Use caution to avoid hitting the photo-detector lens which is located directly above the hex-head
screw. Carefully slide the unit free of the tray. Set the unit aside in a safe location until needed. Install the
tray using six #6-32 clip nuts (475-630-0002), and six FHP #6-32 x ½" screws (475-632-0012). The audio
selector panel must be supported at front and rear of the mounting tray.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-2 Rev. 2, May 2016
2.3.4 Audio Panel Tray and Connector Assembly
The rack back plates mate with two 44-pin connectors in each PMA8000E. The connectors are a subminiature crimp-type, and require the use a hand crimp tool, from table below (or equiv.). The 44 pin connectors are mounted to the tray back plate (430-890-0050) with quantity 4, #4-40 x 3/8” screws (475-440-
1038) and the quantity 2, back shell retainer mounting blocks (431-891-0100). Ensure that proper strain
relief and chafing precautions are made during wiring and installation, using the cable clamp (625 -001-
0002).
Because the connector back shell (625-025-2465) is a single piece, the harness should be passed through
the shell before the pins are inserted into the connector.
Two grounding solder lugs are provided (475-009-0001) for each unit, which may be attached to the rear
mounting plate with 2 ea #4-40 x ¼” (475-440-0001) screws with captivated lock washers. These provide a
convenient location to connect the shield ground terminations.
Manufacturer
Crimping Tool
Positioner
Extraction tool
AMP
601966-1
601966-6
91067-1
Daniels
AFM8
K42
M24308-1
ITT-Cannon
995-0001-584
995-0001-739
91067-1
Table 2-1 Connector Pin crimping tools
2.4 Cable Harness Wiring
Referring to the appropriate Appendix, assemble a wiring harness as required for the installation. All wires
must be MIL-SPEC in accordance with current regulations. T wo- and three-conductor shielded wire must
be used where indicated, and be MIL-C-27500 or equivalent specification. Proper stripping, shielding and
soldering technique must be used at all times. It is imperative that correct wire be used.
Refer to FAA Advisory Circular 43.13-2B for more information. Failure to use correct techniques may
result in improper operation, electrical noise or unit failure. Damage caused by improper installation will
void the PS Engineering warranty.
2.4.1 Electrical Noise
Due to the variety and the high power of radio equipment often found in today's general aviation aircraft,
there is a potential for both radiated and conducted noise interference.
The PMA8000E power supply is specifically designed to reduce conducted electrical noise on the aircraft
power bus by at least 50dB. Although this is a large amount of attenuation, it may not eliminate all noise,
particularly if the amplitude of noise is very high. There must be at least 13.8 VDC present at the connec tor, J2 pins 8 & 9, of the PMA8000E for the power supply to work in its designed regulation. Otherwise, it
cannot adequately attenuate power line noise. Shielding can reduce or prevent radiated noise (i.e., beacon,
electric gyros, switching power supplies, etc.) However, installation combinations can occur where interference is possible. The PMA8000E was designed in a RFI hardened chassis and has internal Electromagnetic Interference (EMI) filters on all inputs and outputs.
Ground loop noise occurs when there are two or more ground paths for the same signal (i.e., airframe and
ground return wire). Large cyclic loads such as strobes, inverters, etc., can inject noise signals onto the ai rframe that are detected by the audio system. Follow the wiring diagram very carefully to help ensu re a minimum of ground loop potential. Use only Mil Spec shielded wires (MIL -C-275000, or better). Under no
circumstances combine a microphone and headphone wiring into the same shielded bundle. Always use a
2- or 3-conductor, shield wire as shown on the installation-wiring diagram.
The shields can be daisy-chained together, and then connected to the ground lugs mounted on the back
plate shown in Appendix B.
Radiated signals can be a factor when low level microphone signals are "bundled" with current carryi ng
power wires. Keep these cables physically separated. It is very important that you use insulated washers to
isolate the ground return path from the airframe to all headphone and microphone jacks.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-3 Rev. 2, May 2016
2.4.1.1 Music Inputs and Noise
PMA8000E units utilize a differential input to help prevent noise from entering the music system. This
feature is usually transparent to the installer; however, it is important that the appropriate music signal and
ground connections are made directly to the dedicated music signal and grou nd inputs on the PMA8000E.
The power for IFE and audio panel should be a common bus.
If a music jack instead of a music source is installed for Music 1 or 2, we recommend grounding the jack to
airframe ground.
NOTE
Adding a high-performance audio control system, particularly in conjunction with high-performance active
noise canceling headsets, cannot improve on older avionics that were designed for cabin -speaker use. PS
Engineering makes no claim that the audio panel will provide a noise -free audio quality under all installation conditions, particularly with older avionics.
2.4.2 Power
The PMA8000E is compatible with both 14 and 28 Volt DC systems. A five (5) Amp circuit breaker is
required for all installations. Power and ground wires should be #22 connected t o J2 Pins 8 and 9 on each
audio panel. Connect airframe ground to J2 Pin 10 and 11 only, in each audio panel. No dropping resistors
are required.
2.4.3 Audio Panel interface
The PMA8000E is designed to interface with standard aircraft avionics, with a 510 receiver impedance.
For best results, a twisted-shielded cable is recommended from the avionics audio source to the audio pa nel, with the shield grounded at the audio panel end.
Some avionics do not provide a separate audio low, and may introduce additional ele ctrical noise into the
system. For best results, connect the audio low from the audio panel to the radio ground, using one condu ctor of the twisted-shielded cable.
2.4.4 Cockpit Speaker
Each PMA8000E contains a cockpit speaker amplifier. Any radio audio source will be presented to the
cockpit speaker when the SPR button is selected.
NOTE: Do NOT connect both audio panels directly to a single cockpit speaker. This could damage
the audio panel. A dedicated cockpit speaker is recommended for each audio panel.
2.4.5 Backlighting
The PMA8000E has an automatic dimming of the pushbutton green annunciation LEDs and marker lamps
controlled by a photocell. Control of the unit white backlighting is through the aircraft avionics dimmer.
For 14 V (or 5 VDC p/n 050-890-0415, only) aircraft, connect J2 Pins 6 and 7 to the aircraft dimmer bus,
and pin 5 to ground. For 28-volt systems, connect pin 7 to the aircraft dimmer, and pins 5 and 6 to ground.
2.4.6 Unswitched inputs
PMA8000E, J1, pins 31, 29 and J2 pin 15 are unswitched, unmuted (by transmitter keying), inputs # 1, 3
and 4, respectively. These inputs are presented to the pilot audio panel and copilot audio panel regardless of
the audio configuration, and will always mute the entertainment inputs. These 510Ω inputs can be used for
altimeter DH audio, GPS waypoint audio, and autopilot disconnect tones, or any other critical audio signal.
Unswitched #1 is always present to the speaker and crew headphones Unswitched 3 and 4 inputs are always
presented to the crew headphones and to the aircraft speaker.
Unswitched
Input
Hear in
Fail Safe
Hear in
Crew Headset
SPR button
Select
Gain
1
Yes
Yes
No
1:1(fixed)2No
Yes
Yes
1:1(fixed)
3NoYes
No
Adjustable
4NoYes
No
1:1(fixed)
Table 2-2 Unswitched input table
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-4 Rev. 2, May 2016
Unswitched #2, J1 pin 44 is unswitched is always connected to the crew member’s headphone. However,
this unswitched audio is only presented to the aircraft speaker when the SPR push button has been selected.
The audio low for unswitched #4 (J2, pin 15) should be connected to a convenient audio low. However, this
should NOT be connected to Music Low.
NOTE
Inputs 1, 2 and 4 are fixed (1:1), and any audio level adjustments must be made at the input source.
Unswitched #3 has a variable adjustment control located on the bottom side of the unit. This control allows
you to adjust the volume level of that unswitched input. Refer to Adjustments section.
2.4.7 "Swap" Mode
When a momentary, normally open, push-button switch is connected between pin 20 on the J2 connector
and aircraft ground, the user can switch between COM 1, COM 2 and COM 3 by pressing this switch without having to change the xmt selector on the audio panel. This yoke-mounted switch eliminates the need to
remove your hands from the yoke to change transceivers. The transfer of TX indication from COM 1 to
COM 2 and COM 3 shows that the swap has been initiated.
Swap selection of COM 3 (COM 1, COM 2, COM 3, or COM 1 and COM 2 only) is a user-selectable option. Holding the remote “swap” button, pr ess and release the COM 3 RCV button to enable or disable the
COM 3 in the swap rotation.
2.4.8 Bluetooth Telephone Function
The PMA8000E is compatible with most Bluetooth® enabled devices for making and receiving telephone
calls through the aircraft audio system.
The pilot’s Bluetooth device is presented to the pilot’s audio panel ( PMA8000E Pilot) only. Music and
telephone is not shared.
The copilot’s Bluetooth device is presented to the copilot’s audio panel ( PMA8000E Copilot), and provided
music for the copilot and any passengers that may be connected to an intercom expansion unit. The copilots’ cellular telephone can also be shared with the pilot. See § 3.4.
2.4.8.1 Cell phone Sidetone
As shipped from PS Engineering, the PMA8000E provides cellular telephone sidetone (the user’s voice fed
back to the headset). Some cell phones do provide sidetone. In PMA8000E audio panels, Telephone
sidetone can be disabled by pressing the AUX button for more than one second. NOTE: This will not pro-
vide cellular telephone sidetone in ISOLATE intercom mode, because the intercom signal is not available
to the pilot.
NOTE
Unauthorized use of unapproved cellular telephone devices in aircraft is subject to FCC enforcement a ction, which may include a $10,000 fine per incident.
FCC Regulation 47 CFR § 22.925 Prohibition on airborne operation of cellular telephones .
Cellular telephones installed in or carried aboard airplanes, balloons or any other type of aircraft must not
be operated while such aircraft are airborne (not touching the groun d). When any aircraft leaves the ground,
all cellular telephones on board that aircraft must be turned off.
PS Engineering, Inc. does not endorse using unapproved cellular telephone equipment in flight, and takes
no responsibility for the user’s action.
PS Engineering does not guarantee compatibility with personal cellular telephones. For a list of phones that
have been tested, visit http://www.ps-engineering.com/support.
2.4.9 Public Address Mode
By pressing the Mute and SPR pushbuttons at the same time, the PMA8000E will be placed into public
address (PA) mode. In this mode, the pilot will be talking over the cockpit speaker when he presses his PTT
switch. Copilot will still continue on the selected COM radio.
When the Public Address is enabled, J2 Pin 19 will go low, providing a logic level that can be used to i ncorporate a speaker-switching scheme. This 50 mA circuit (10Ω Z) can control a switching means such as a
relay that would transfer the speaker output amplifier from the cockpit speaker to drive another cabin
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-5 Rev. 2, May 2016
speaker. If the PA mode is used with a microphone in proximity to an active cockpit speaker, feedback
might result.
K2
1
5
9
13
14
+28V
Copilot ACP
J2-44
Speaker Out
J2-19
PA Control
Cockpit
Speaker
PA Speaker
Pilot ACP
J2-44
J2-19
K2
1
5
9
13
14
+28V
Speaker Out
PA Control
Cockpit
Speaker
K2
13
14
+28V
2-1 Public Address Switching Relay example
NOTE: Do NOT connect both audio panels directly to a single PA speaker. This could damage the
audio panel.
2.4.10 PA Mute (J2, Pin 12)
Pin 12 of J2 is a TTL logic output that is pulled low during PTT operation.
2.4.11 Miscellaneous Logic Output (J2, Pin 18)
Pin 18 of the J2 connector is pulled to ground whenever the AUX button is depressed. This serves as a co ntrol line for external devices that the pilot wishes to control.
2.4.12 Marker High Sensitivity (J2 Pin 13)
The PMA8000E defaults to LOW marker sensitivity of 1000µVolts. If High marker beacon sensitivity is
desired, J2 Pin 13 can be connected to ground (or J2 pin 14), through a switch, to set the marker beacon
threshold sensitivity to 200 µVolts.
2.4.13 Dual Audio Panel Connections
The PMA8000E has specific interconnection between the two audio panels, which we refer to as P ilot’s, or
Primary; and Copilot’s, or Secondary.
2.4.13.1 Crosstie (x-tie) Audio
Audio cross tie containing the other crewmember and passenger intercom, as appropriate s elected by intercom mode, is transferred between audio panels on J2, Pin 3 (audio output to the other audio panel) and J2
Pin 32 (Audio input from the other audio panel). Connect Pins 2 to 32 on the other panel.
2.4.13.2 Serial Data (J2 Pins 24 & 26)
A serial communication bus communicated mode information between the primary and secondary panels.
J1 Pins 24 and 26 are the serial data connections. Connect Pin 24 (Data +) to Pin 24 on the other panel, and
Pin 26 to Pin 26 (Data –).
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
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2.4.13.3 PTT Sense
Each audio panel needs to know if the other unit is transmitting. The J2, Pin 33 on each audio panel senses
that the other crew member is transmitting, and will block any attempt by the copilot’s panel to simultan eously transmit on the same radio as the pilot.
2.4.13.4 Secondary Audio Panel Strap (J2, Pin 17)
This pin is permanently connected to ground and determines which panel is considered the secondary (or
copilot’s). This strap must be installed on the copilot box only for proper operation.
NOTE: The pilot and copilot PMA8000E units are interchangeable, because this pin alters the functionality
of the unit installed in that position.
2.4.14 CVR Output (J2, Pin 4)
The PMA8000E contains an output for Cockpit Voice Recorder. This audio output contains the intercom
audio presented to the crewmember associated with the audio panel, as well as the selected radio audio and
unswitched audio. This audio output is complaint with 14 CFR §23.1457 and §25.1457 (a)(1), (3), (4), and
(5).
2.5 Intercom wiring
See Appendix C and D for intercom connection configurations. It is critical to the proper operation of this
system to have this connector wiring made in accordance with these diagrams. Use 2- and 3-conductor,
MIL-spec cable as shown. Connect the shields at the audio panel end only, and tie to the audio low inputs
as shown.
2.5.1 Entertainment Inputs
The PMA8000E incorporates a four-mode "Soft Mute™" system. This will mute the entertainment devices
during ICS and/or radio conversation. See Section 3.8 for more information.
Press the Mute switch to activate the Karaoke mode for the crewmember connected to the audio panel (di sabling crew SoftMute™). Turning down the entertainment volume allows the pilot to place the entertai nment into the background while having the radios in the foreground and eliminates the constant interruption
of the music while still keeping the radios a priority.
NO T E
Us e t he l o w l e v e l o u t put o f a n y add i t ion a l en t e r tai n m e nt d e vice t o c o n nec t t o t h e a udio p ane l . Ma x i mum s i gna l l eve l i s 3 V A C p - p . D O NOT use a spe a k e r - l e ve l o utp u t ,
thi s wil l c aus e i nte r n al d a mage i n t h e aud i o pa n e l .
2.5.1.1 Pilot, Copilot, and Passenger music
In a dual installation, the Pilot audio panel has music input from the rear connector (Entertainment. #1 A udio), and Bluetooth® input. This is only Music #1, and localized to the Pilot’s audio panel.
The Copilot’s audio panel has inputs from Music 1 and Music 2. Music input 1 can be heard by the copilot.
Music input 2 can be heard by the passengers only.
2.5.2 Entertainment muting
The PMA8000E-system incorporates a "Soft Mute™" system. This will mute the entertainment devices
during ICS or radio conversation. See Section 3.8 for more information.
Press the Mute switch to activate Karaoke mode (disabling crew SoftMute™). Turning down the e ntertainment volume allows the pilot to place the entertainment into the background while having the radios in
the foreground and eliminates the constant interruption of the music while still keeping the radios a priority.
CAUTION
Local oscillators and internal signals from entertainment equipment can cause undesired interference with
other aircraft systems. Before takeoff, operate the entertainment devices to determine if there is any adverse
effect within the aircraft systems. If any unusual operation is noted in flight, immediately switch off the
entertainment devices.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-7 Rev. 2, May 2016
All additional entertainment devices must be switched off for both takeoff and landing.
When the intercom is put into the ISO Mode, music will be stopped.
2.5.2.1 Annunciation and recorder playback
The pilot and copilot can hear the Function Key annunciations. If the customer wants to exclude playback
and function key annunciation playback from the copilot position, contact PS Engineering for more info r-
mation.
2.5.3 Playback Button Installation
Internal Recorder can be played back from the front panel. A remote momentary, normally open (NO) push
button switch may be installed if desired. This will allow you to remotely activate the Recording System
playback. This switch can be located anywhere in cockpit convenient to the pilot's reach. The NO switch
should be connected to pin 22 of J2 of the PMA8000E, and ground. When installed, this button will act as
in § 3.13.
2.5.4 Passenger Intercom Expansion (IntelliPAX)
The PMA8000E can support one or two, six-place intercom expansion units (PS Part Number 11636R), for
up to 12 passengers. These expansion units are connected to the copilot’s PMA8000E.
In the dual installation with expansion, the passengers can speak to each other at all times, and the intercom
mode control allows for intercom communications with the copilot or both crew members. See section
3.7.3 for operating information.
2.6 Marker Beacon Installation
PMA8000E units with part numbers 050-890-0514 and -0515 contain a 75 MHz Marker beacon receiv-
er/indicator.
2.6.1 Marker Antenna Installation
A marker beacon antenna, appropriate to the type and speed of the aircraft, is required (not included). Refer
to aircraft and antenna manufacturer's installation instructions, as well as AC43.13-2B (or later revision),
Chapter 3, for information on proper antenna installation techniques. The marker beacon antenna must be
mounted on the bottom of the aircraft.
2.6.2 External Marker Lights
For installations that require external marker beacon lights, there are three outputs that can driv e 12-Volt
lamps only. The external output lamps are driven high (typically + 7.0 VDC 4.0 VDC unloaded, at MAX
brightness) when active. Maximum source current per lamp is 125 mA. Voltage varies with photocell
dimming.
2.6.3 Middle Marker Sense
A Middle Marker Sense output signal is available from the PMA8000 to certain flight control systems. This
function will not operate during the test mode. This output will go to +4.5 VDC ( 1.0 VDC) when a valid
Middle Marker signal is received. This output is J1, pin 39.
2.6.4 Marker Sensitivity switch (J2 Pin 13)
The PMA8000E defaults to LOW marker sensitivity of 1000µVolts. If High marker beacon sensitivity is
desired, J2 Pin 13 can be connected to ground (or J2 pin 14), through a switch, to set the marker beacon
threshold sensitivity to 200 µVolts.
NOTE: J2 Pin 13 must be connected if Marker High Sensitivity is desired
2.6.5 Marker Audio Input
For units without the internal receiver (050-890-0414 and -0415) and audio
signals from external marker receivers can be input to J1-21 with respect to J1-
22. This will appear in the headset output when the MKR button is pressed.
PS Engineering
Installation and Operator’s Manual
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-8 Rev. 2, May 2016
2.7 Adjustments
The PMA8000E is factory adjusted to accommodate the typical requirements for most aircraft configur a-
tions. There are three adjustments in the top cover that allow the installer to tailor the specific functions.
Figure 2-2- PMA8000E Adjustments, top cover
Speaker Volume- Turn adjustment clockwise to increase cabin speaker output.
Marker Beacon Volume, turn adjustment counterclockwise to increase marker beacon audio level.
TEL volume, turn adjustment Clockwise to increase the incoming telephone audio.
ANN VOL– controls the level of the playback audio. (Top cover must be removed).
Unswitched Input 3 Volume, adjust from 50% to 200% of input value. (Bottom cover must be r e-
moved).
Front
of unit
PS Engineering
Installation and Operator’s Manual
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-9 Rev. 2, May 2016
Figure 2-3 – Unswitched 3 Audio Level (bottom cover removed)
2.8 Communications Antenna Installation Notes
For best results while in Split Mode, it is recommended that the one VHF communications antenna is loca ted on top of the aircraft while the other communications antenna is installed on the bottom. Any antenna
relocation must be accomplished in accordance w ith AC 43.13-2B, aircraft manufacturers’ recommendations and FAA-approved technical data.
WARNING
It is probable that radio interference will occur in the split mode when the frequencies of the two ai rcraft radios are adjacent, and/or the antennas are physically close together. PS Engineering makes no
expressed or implied warranties regarding the suitability of the PMA8000E in Split Mode.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-10 Rev. 2, May 2016
2.9 PMA8000E Pin assignments
J1
Function
J2
Function
1
MKR Ant
1
Pilot Phones Low
2
MKR Ant Low
2
No Connect
3
Com 3 Audio Hi
3
X-tie Audio Out
4
COM 3 Low
4
CVR Audio Out (Hi)
5
COM 3 Mic Audio Hi
5
Lights Low
6
COM 3 Mic Key
6
14V/5V Lights Hi//28 V Lights Low
7
ADF Audio In
7
14/28/5 V Lights Hi
8
ADF Audio Low
8
11-33 VDC Aircraft Power
9
COM 1 Audio Hi
9
11-33 VDC Aircraft Power
10
COM 1 Low
10
Airframe Ground
11
COM 1 Mic Audio Hi
11
Airframe Ground
12
COM 1 Mic Key
12
PA Mute
13
COM 2 Audio Hi
13
MKR HI Sense
14
COM 2 Low
14
MKR HI Sense Low
15
COM 2 Mic Audio Hi
15
Unsw 4 Aud Hi
16
No Connect
16
Pilot Phones (L)
17
NAV 1 Audio Hi
17
Copilot Panel Strap (Copilot unit only)
18
NAV 1 Low
18
No Connect
19
NAV 2 Audio Hi
19
PA Active
20
NAV 2 Low
20
Swap
21
DME Audio Hi (MKR Audio Hi*)
21
Swap Low
22
DME Low (MKR Audio Lo*)
22
IRS Playback
23
Aux Audio Hi
23
Ent. #1 Audio 1 (L)
24
Data +
24
Ent. #1 Audio 1 (R)
25
No connect
25
Ent. #1 Audio Low
26
Data -
26
Ent. #2 Audio 1 (L) (Copilot Unit only)
27
Speaker Load
27
Ent. #2 Audio 1 (R) (Copilot Unit only)
28
Speaker Load
28
Ent. #2 Audio Low (Copilot Unit only)
29
Unsw 3 Aud Hi
29
No Connect
30
COM 2 Mic Key
30
No Connect
31
Unsw 1 Aud Hi
31
Pilot Phones (R)
32
UnswAud 1 Low
32
X-tie Audio Input
33
Pilot Mic Audio
33
PTT Sense
34
Pilot PTT
34
Pilot/Copilot Mic Low
35
Pilot Mic Low
35
Expansion #1 Audio Input
36
Ext IM MKR- White
36
Expansion Low
37
Ext OM MKR- Blue
37
Expansion #2 Audio Input
38
Ext MM MKR- Amber
38
Expansion Low
39
MM Sense
39
Expansion #1 Power
40
Expansion Audio Output (L)
40
Unswitched #4 Low
41
Expansion Audio Output (R)
41
Expansion #2 Power
42
No Connect
42
CVR Audio Low
43
Unsw Aud 2 Low
43
Speaker Low
44
Unsw Aud 2 Hi
44
Speaker Hi
PMA8000E Functions Only *NO marker receiver versions ( -0414 & -0415)
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 2-11 Rev. 2, May 2016
2.10 Wiring Checkout
After wiring is complete, verify power is ONLY on pins 8 and 9 of the J2 and airframe ground on connector pins 10 and 11. Failure to do so will cause serious internal damage and void PS Engineering's warranty.
2.11 Unit Installation
To install the PMA8000E, gently slide the unit into the mounting rack until the hold-down screw is engaged. While applying gentle pressure to the face of the unit, tighten the 3/32" hex-head in the center of the
unit until it is secure. DO NOT OVER TIGHTEN.
CAUTION
Apply steady pressure to the bezel while screwing the unit into the tray to ensure even seating of the unit
and connectors. WARNING Do not over-tighten the lock down screw while installing the unit in tray. In-
ternal damage will result.
2.12 Operational Checkout
2.12.1 Required Test Equipment
In order to return an aircraft to service after installation of the PMA8000E, the installer must have access to
a Marker Beacon signal generator:
a. IFR NAV401L, NAV402AP, IFR4000
b. TIC T-30D, T-36C
Equivalent test equipment is acceptable as long as the testing requirements can be met.
2.12.2 Audio Panel Test
NOTE
The IntelliVox® is designed for ambient noise levels of 80 dB or above. Therefore some clipping may o ccur in a quiet cabin, such as without the engine running, in a hangar. This is normal.
1. Apply power to the aircraft and avionics.
2. Plug headsets into the pilot, copilot, and occupied passenger positions.
3. Verify fail-safe operation by receiving and transmitting on com 1 from the pilot & copilot position,
with the audio panel power off. The COM audio will be present in one ear cup only.
4. Switch on the units by pressing the volume (VOL) knob on both audio panels.
5. Verify both panels are in CREW mode.
6. Check intercom operation.
7. Push the COM 1 Xmt select button (lower row) on both audio panels.
8. Verify that both of the COM 1 buttons light. Verify that transmit button LED (Light Emitting Diode)
near the mic selector is not blinking. If the LED is blinking, stop testing and troubleshoot the micr ophone PTT installation.
9. Verify proper transmit and receive operation from the copilot s audio panel, noting that the copilot PTT
switch allows proper transmission on the selected transceiver. Verify that the COM 1 Xmt button
blinks when transmitting.
10. Verify that pushing the COM 2 button causes the button to illuminate, and the COM 2 receiver to be
heard. Verify operation on COM 1 from the pilot position.
11. Repeat for COM 2
12. Repeat for COM 3
13. Verify proper operation of all receiver sources by selecting them using the appropriate button. The
button illuminates to show which source is in use.
14. Push the SPR button. Verify that all selected audio is heard in the cockpit speaker. Verify that the a udio mutes when the mic is keyed.
15. Verify that the appropriate LED in the lower button row blinks when either push to talk is keyed.
16. Verify proper Intercom system operation in the ALL, ISO and CREW modes (see page 3-3).
17. Verify that the audio selector panel system does not adversely affect any other aircraft system by sy stematically switching the unit on and off, while monitoring the other avionics and electrical equipmen t
on the aircraft.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
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2.12.3 Marker Checkout
1. Connect a ramp generator at the antenna end of the marker coax. With the unit under test in HI sens itivity, verify that a430 Volts, modulated 95% with 1300 Hz, signal will illuminate the amber (M)
marker light, and that marker audio is present in the headphones when the Marker Audio (MKR) pushbutton has been depressed. Select SPR for speaker to verify marker audio availability on the cabin
speaker. Verify that the white (I) and blue (O) lights will illuminate within 3dB of the amber lamp,
with 3000 HZ and 400 Hz applied, respectively.
2. Repeat with the unit in High sensitivity (P2, Pin 13 grounded), with 160 V applied.
3. Connect the marker antenna and verify proper operation.
4. For -0141 & -0415, press the MKR button and verify audio from external receiver is present.
2.12.4 Bluetooth Telephone Checkout
Verify that the PMA8000E will “pair” with a Bluetooth device, and interface with cellular phone and Music source. See section 3.12 for more information. Verify that the pilot headset is connected to the cellular
telephone system (if installed). Verify that by using the pilot side PTT, the pilot can transmit on the other
selected radio (COM 1 or COM 2). The telephone function will allow any person heard by the pilot on the
intercom, also heard on the telephone.
2.12.5 Internal Recorder Checkout
With headset plugged into pilot’s side jacks, tune COM 1 to local frequency, such as FSS or ATC ground.
Select COM 1 on mic selector switch, and record several incoming radio transmissions.
Note: The recorder will not play back a recording while the COM is active.
Press the COM receiver pushbutton that corresponds to the selected radio transmitter and hold for approximately one second. This action will then automatically play back the last recorded message. Press and
HOLD the button again to stop the play back, and then momentarily press again to play prior messages.
This audio should appear in the pilot’s headset only and only be incoming transmissions from the selected
transceiver. Depress the audio panel or yoke mounted playback switch, and verify that messages play, in
the order received. Repeat for COM 2 and COM 3. The playback will be stopped by audio on the selected
com. The message can be replayed from the beginning, and audio received durin g the playback will not be
stored.
Repeat for copilot’s audio panel.
2.13 Final Inspection
Verify that the wiring is bundled away from all controls and no part of the installation interferes with ai rcraft control operation. Move all controls through their full range while examining the installation to see
that no mechanical interference exists. Verify that the cables are secured to the aircraft structure in accor dance with good practices, with adequate strain relief. Ensure that there are no kinks or sharp bends in the
cables and coaxial cables. Verify that the cables are not exposed to any sharp edges or rough surfaces, and
that all contact points are protected from abrasion.
Complete documentation that may be required, such as a logbook entry, weight and balanc e computation
and FAA Form 337. Sample text for FAA Form 337, and instructions for continuing airworthiness can be
found in Appendix F. Return completed warranty registration application to PS Engineering, or complete
online at www.ps-engineering.com.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 3-1 Rev. 2, May 2016
Section III OPERATION
3.1 SCOPE
This section provides detailed operating instructions for the PS Engineering PMA8000E, Audio Selector
Panel/Marker Beacon Receiver/Intercom Systems. Please read it carefully before using the equipment so
that you can take full advantage of its capabilities.
This section is divided into sections covering the basic operating areas of the PMA8000E systems. They are
Communications Transceiver Selection, Audio Selector, Intercom, Marker Beacon Receiver and special
functions, including the Bluetooth® functionality in the PMA8000E.
Figure 3-1 PMA8000E Operating Controls
Unit power is turned on and off by pushing the volume knob. In the OFF or "EMG" position, the pilot headset is connected directly to COM 1 as well as unswitched input #1. This allows communication capability
regardless of unit condition. Any time power is removed or turned OFF, the audio selector will revert to failsafe mode.
NOTE: Both crew members are connected to COM 1 in fail-safe. There is no priority, and in some cases
microphone loading may make it necessary to unplug one crew member’s microphone for optimum tran smission quality.
The power switch controls all audio selector panel functions, intercom and marker beacon receiver. All
pushbutton selections will be remembered and return to the last state when turned on.
3.2 Communications Transmit (XMT) Selection (2)
There are three pushbuttons associated with the transmitter selection. Th e three lower buttons (# 2) control
which transceiver is selected for transmit. The top row of pushbuttons (# 3) allows selection of the receiver
audio. Push the lower button to select the desired COM transmitter.
Only one transmitter can be selected by ea ch crew member at a time. If both the pilot and copilot select the
same transmitter, the pilot will have priority for radio push -to-talk.
3.1 Communications Receiver (RCV) Selection (3)
The PMA8000E-Series has an automatic selector system. Audio from the selected transceiver is automatically heard in the headsets and speaker (if selected). You can check this function by switching from COM 1
transmitter to COM 2 or COM 3 transmitter by pressing the transmitter selector pushbutton. See that the
associated COM 2 or 3 receive pushbutton indicator light that is located immediately in the transmitter
pushbutton turns green. This guarantees that the pilot will always hear the audio from the transceiver selected for transmit.
When switching from COM 1 transmitter to COM 2 or COM 3 while that COM receiver was not previous-
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
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200-890-0304 Page 3-2 Rev. 2, May 2016
ly selected, the COM 1 audio will be switched off.
The PMA8000E “remembers” the receiver selection, so that when switching transmitters from COM 1 to
COM 2, if COM 2 or COM 3 audio was previously selected, COM 1 audio will continue to be heard. This
eliminates the pilot having to switch COM 1 audio back on, after changing transmitters.
In essence, switching the mic selector will not override prior selection of COM receiver audio.
3.1.1.1 Dual Transmission
The PMA8000E systems allow independent operation of the transmitters and receivers for the pilot and
copilot audio panels.
The system gives priority to the pilot’s radio Push-To-Talk (PTT). If the copilot it transmitting, and the
pilot presses his PTT, the pilot’s microphone will be heard over the selected com transmitter.
NO T E
Due to the nature of VHF communications signals, and the size constraints in general aviation aircraft, it is
probable that there will be some bleed-over when both flight crew membes transmit at the same time on
different radios, particularly on adjacent frequencies. PS Engineering makes no warranty about the
suitability of dual transmit in all aircraft conditions.
3.1.1.2 Swap Mode (Switch from COM 1 to COM 2 or COM 3 remotely)
With a yoke mounted, normally open momentary switch, the user can change from the current COM transceiver to the other by depressing this switch. To cancel "Swap Mode," the user may either press the yoke
mounted switch again, or select a different COM with the XMT buttons. The PMA8000E can be configured by the user to either Swap COM 1/COM 2, or COM 1/COM 2/COM 3. To change this function, press
and hold the swap switch, and push and release the COM 3 RCV button momentarily.
3.1.1.3 Stuck Microphone Protection
The PMA8000E will sense if the pilot or copilot radio PTT remains keyed for more than 32 seconds. When
a stuck mic is detected, the key input is ignored, and the other crewmember can transmit normally. If the
stuck microphone key becomes ungrounded, normal operation is restor ed.
3.2 Audio Selector (4)
Communication audio from the other radio, not selected for transmit, can be heard by pressing the associa ted RCV button. You will always hear the audio from the selected transceiver.
Navigation receiver audio is selected through five momentary, push-button, backlit switches.
The users can identify which receivers are selected by noting which green switch LEDs are lit. Navigation
aid audio push buttons are labeled NAV 1, NAV 2, ADF and AUX (auxiliary). DME audio (if present) will
come through when the AUX button is selected. When one of these buttons is pressed, the mode is active,
and the LED will illuminate. Press the switch again and it will be "off" and remove that receiver from the
audio output.
Marker Audio (MKR) can be selected by a momentary press of the MKR button. (9)
3.3 Bluetooth Telephone
In a dual PMA8000E Installation, the pilot’s Bluetooth transceiver services music for the pilot only. It is
possible to share the Bluetooth telephone connects with the copilot’s panel in the CREW intercom mode. In
the ISO mode, the pilot’s cell phone does not provide sidetone on the Bluetooth connection, the pilot will
not hear himself on the telephone, even if sidetone enabled per §3.4.1.
Warning:
United States FCC Regulations contained in 47 CFR § 22.925 contain prohibition on airborne operation of
cellular telephones. “Cellular telephones installed in or carried aboard airplanes, balloons or any other type
of aircraft must not be operated while such aircraft are airborne (not touching the gr ound). When any aircraft leaves the ground, all cellular telephones on board that aircraft must be turned off.”
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 3-3 Rev. 2, May 2016
If pilot would like privacy, selecting the ISO mode on the pilot’s audio panel will connect his Bluetooth
telephone alone.
If the pilot would like to include the copilot, then select the CREW mode which will allow pilot and copilot
to speak on the pilot’s phone call.
The pilot will still have complete access to the aircraft radios, and will transmit on the selected com when
the radio push-to-talk is used.
The copilot can connect a Bluetooth telephone to the copilot’s audio panel.
If copilot would like privacy, selecting the ISO mode on the copilot’s audio panel will connect his Blu etooth telephone alone.
If the copilot would like to include the pi lot then selecting the CREW mode will allow pilot and copilot to
speak on the copilot’s phone call.
3.3.1 Passenger on cell phone
The cell phone follows the intercom mode, so if the passengers wish to be included on the conversation, the
crewmember selects HLD PAX on the audio panel to add passengers to the Bluetooth cell phone convers ation.
NOTE
Because the cell-phone uses an intercom circuit, all stations on that circuit will lose intercom capability
when the cell phone is in use, but will be heard if the phone is connected.
3.3.2 Cell phone Sidetone
As shipped, the PMA8000E audio panels provide cellular telephone sidetone (the user’s voice in the hea dset). Some cell phones provide their own sidetone. In PMA8000E audio panels, telephone sidetone can be
disabled by pressing the AUX button for more than one second. Cell phone sidetone generated by the audio
panel is not available when the audio panels are selected to the ISO mode.
NOTE: Because the sidetone is generated by the PMA8000E intercom, there will never be any sidetone
audio available in ISO mode for either box.
3.4 Cockpit Speaker (5)
The SPR in the lower right section stands for speaker. This switch will place all selected audio on the
cockpit speaker when this switch is selected.
Unswitched audio, (the inputs dedicated to autopilot disconnect, altimeter warning, etc.) will come through
the speaker regardless of the speaker button position.
Depending on installation, important audio annunciations such as radar altimeter or autopilot disconnect
will come over the speaker even if it is not selected, while other unswitched, but muted inputs, such as GPS
alerts, will only be present if the SPR button is selected. Consult your professional avionics installer for
these important configuration details.
3.4.1 Public Address Function
To activate PA function, press SPR button for more than one second one the desired audio panel. The crewmember microphone will be heard on the associated
speaker when that crewmember’s PTT is used. The other pilot can continue to use their
audio panel normally.
During Public Address, the SPR button will flash. To exit PA mode, push and hold SPR again. This feature
is reset at power cycles.
Additional relay switching and speakers may be required for cabin public address.
3.5 Marker Beacon Operation (9) (Applies to -0514 & -0515 only)
The Marker Beacon Receiver uses visual and audio indicators to alert you when the aircraft passes over a
75 MHz transmitter.
The Blue lamp, labeled “O”, is the Outer Marker lamp and has an associated 400 -Hertz 'dash' tone. The
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 3-4 Rev. 2, May 2016
lamp and tone will be keyed at a rate of two tones/flashes per second when the aircraft is in the range of the
Outer Marker Beacon.
The Amber lamp, labeled “M”, is the Middle Marker lamp and is coupled with a 1300 Hertz tone. It is
keyed alternately with short 'dot' and long 'dash' bursts at 95 combinations per minute.
The White lamp, labeled “I”, is the Inner marker and has a 3000 Hertz 'dot' tone. The lamp and tone will be
keyed at a rate of six times per second.
The audio from the Marker Beacon Receiver can be heard by pushing the "MKR" push-button switch momentarily.
A marker AUD LED will indicate the marker beacon audio has been selected.
To adjust the volume level, there is a service adjustment located on the top of the unit.
3.5.1 The Marker Sensitivity is controlled by an external switch, labeled MKR HI sense.
When switched to ground, the marker receiver is in high sensitivity, otherwise, the
marker is in LOW sense by default, and the “LOW” indicator on the audio panel is
illuminated. Marker Test and Mute
Holding the MKR button for one second activates marker test lamp, labeled " T/M" for Test/Mute and illuminates all three lamps simultaneously to assure the lamps (internal and exte rnal) are in working order.
T/M does not activate MM autopilot sense o utput.
Pressing the MKR button (“T/M”) for one second will also cause the marker audio to mute for that beacon.
The next beacon received will re -activate the audio.
3.5.2 External Marker Audio Input
For units without the internal receiver (050-890-0414 and -0415) and audio
signals from external marker receivers will appear in the headset output when
the MKR button is pressed.
3.6 Intercom Operation
3.6.1 IntelliVox® VOX-Squelch
No adjustment of the IntelliVox® squelch control is necessary. There is no field adjustment. Through three
individual signal processors, the ambient noise appearing in all six microphones is constantly being sa mpled. Non-voice signals are blocked. When someone speaks, only their microphone circuit opens, placing
their voice on the intercom. The system is designed to block continuous tones; therefore people humming
or whistling in monotone may be blocked after a few moments.
For consistent performance, any headset microphone must be placed within ¼-inch of your lips, preferably against
them. (ref: RTCA/DO-214, 1.3.1.1 (a)).
NOTE
It is also a good idea to keep the microphone out of a direct wind path. Moving your head through a vent air
stream may cause the IntelliVox® to open momentarily. This is normal.
The IntelliVox® is designed to work with normal aircraft cabin noise levels (70 dB and above). It loves
airplane noise! Therefore, it may not recognize speech and clip syllables in a quiet cabin, such as in the
hangar, or without the engine running. This is normal.
For optimum microphone performance, PS Engineering recommends installation of a Microphone Muff Kit
from Oregon Aero (1-800-888-6910). This will not only optimize VOX performance, but will improve the
overall clarity of all your communications.
Manufacturer
Model
Mic Muff™ Part Number
Bose
Dynamic
Electret
M87 Dynamic
90010
90015
90020
David Clark
H10-30
H10-20, H10-40
H10-13.4
90010
90015
90015
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 3-5 Rev. 2, May 2016
Manufacturer
Model
Mic Muff™ Part Number
Lightspeed
All
90015
Peltor
7003
7004
90010
90015
Pilot
11-20 & 11-90
90015
Sennheiser
90015
Telex
Airman 750, Echelon
AIR3000
90015
90010
Table 3-1 Mic Muff ™ Part Numbers
3.6.2 Intercom Volume Control (7)
The inner volume control knob adjusts the loudness of the intercom for the crewmember connected to the
audio panel. It has no effect on selected radio levels, music input levels or passengers' volume level.
The outer volume control knob controls intercom volume for any passengers connected to the copilot’s
audio panel. It has no effect on radio or music levels. Pilot’s outer knob is not active, and does not affect
passenger intercom volume.
Adjust the radios and intercom volume for a comfortable listening level. Most general aviation headsets
today have built-in volume controls; therefore, volume also can be further adjusted at the individual headset.
3.6.3 Intercom Modes (8)
In each audio panel, a short press of the ICS button toggles between Is olate (ISO) and Crew (CRW) intercom modes.
In ISO mode, the pilot or copilot will hear selected radios, unswitched
audio. They do not hear any intercom audio. . Music will be stopped if
playing.
In CRW mode, the pilot and copilot audio intercom stations are connected. Each crew member continues to
hear their selected receiver and unswitched audio connected to their audio panel. They can l isten to the music connected to their panel.
Either audio panel can activate the CREW mode, and if either crew member pushes the ICS button to the
ISO mode, then both panels will enter the ISO mode.
Intercom mode is indicated by green ISO or CRW LEDs.
3.6.3.1 Passenger intercom
If equipped with an expansion unit, passengers can be added to the intercom by holding the ICS button for
more than one second. When passengers are on the intercom, the PAX LED is also illuminated, along with
the ISO or CREW green LED.
To place all aircraft stations on the intercom, the audio panels should be in CRW and PAX (long press e ither ICS button on either audio panel).
Any time the ICS button is pressed momentarily, the intercom mode will drop the passengers. The next
press of the ICS button will toggle between ISO and CRW. The passengers can also be removed from the
crew intercom by holding the ICS button for more than one second.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 3-6 Rev. 2, May 2016
Passenger intercom is only available if an IntelliPAX Intercom module is used.
3.7 Music and Music Muting (6)
The PMA8000E has two independent music inputs at the rear connector. The PMA8000E also has the ability to receive streaming music from a Bluetooth-enabled device.
Music 1 will be heard by the crewmember positions in each audio panel. The Bluetooth streamed music in
the PMA8000E is also Music 1.
NOTE:
All music devices should be turned off for takeoff, landing, or any critical phase of flight.
FAA Regulation 14 CFR 91.21 restricts the use of portable electronic devices.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 3-7 Rev. 2, May 2016
§91.21 “(a) Except as provided in paragraph (b) of this section, no person may operate, nor may any oper a-
tor or pilot in command of an aircraft allow the operation of, any portable electronic device on any of the
following U.S.-registered civil aircraft. . .
“(b)(5) Any other portable electronic device that the operator of the aircraft has determined will not cause
interference with the navigation or communication system of the aircraft on which it is to be used. ”
You can refer to Advisory Circular 91.21-1A for more information, at http://www.faa.gov
The front panel "Mute" button controls the Mute on or off function for Music 1.
The SoftMute™ circuit will cut the music out whenever the re is conversation on the radio, the intercom, or
both, depending on the “Mute” mode selected. When that conversation stops, the music returns to the pr evious level comfortably, over a second or so.
3.8 Bluetooth® interface
NOTE: As delivered by the factory, Bluetooth is disabled in the PMA8000E. A specific sequence of keystrokes is required to activate the Bluetooth Module. This allows operators to prevent crew access to Blu etooth functions if desired.
The PMA8000E has a Bluetooth interface. The audio panel is always “discoverable,” so you just need to
search for the PMA8000E from your Bluetooth-equipped phone or music source. The default access code is
“0000”, if needed. Once the PMA8000E has been “paired” with your Bluetooth device, the TEL distribution will act as described in § 3.11.
Calls are answered or made from the telephone handset. You can disconnect from the handset.
3.8.1 Pairing and unpairing Bluetooth devices
The PMA8000E can be paired with up to eight individual devices. When that number is exceeded, o ne device will be automatically un-paired to allow the new device. The device eliminated will be selected at random by the Bluetooth module. Hint, if your old phone is not recognized by the PMA8000E, you may simply
need to re-pair.
3.8.1.1 Paring separate music and telephone devices
It is possible to use a different music source (iPad, iPod with Bluetooth adapter, Bluetooth enabled laptop,
etc) and telephone. However, the telephone source must be paired first, before the music, if the telephone
also has music streaming capability. Note: iPhones will probably take control over other music devices. In
Droid you may select music or phone only. With Blackberry, you may have to manually select the
PMA8000E as audio source for each call.
3.9 Internal Recorder and Playback
The PMA8000E comes equipped with an internal recorder. This digital system stores the last incoming
audio from the radio you have selected for transmit. It can store as many of 8 incoming messages, and up to
60 seconds of audio. The pilot and copilot hear the playback. It is also possible to modify the unit to exclude the copilot from the playback, and annunciation playback. Contact PS Engineering for more details.
Recording is automatic. To play back the last recorded message, press and hold the COM Recei ve pushbutton associated with the selected radio transmitter for about one (1) second. You can either wait for the me ssage to finish playing before accessing the prior message, or cancel the current playback and step bac kward. To cancel the playback, press and hold the COM receive playback button for two seconds (2). The
next time the button is pressed for one (1) second, the next earlier message will be heard. The playback
will stop whenever there is more incoming selected com audio, and the message can be replayed
from the beginning by pressing the selected COM Receive button again for 1 second
Figure 3-2 Playback Controls
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Page 4-1 Rev. 2, May 2016
Section IV – Warranty and Service
4.1 Warranty
In order for the factory warranty to be valid, the installations in a certified aircraft must be accomplished by
an FAA-(or other ICAO agency) certified avionics shop and authorized PS Engineering dealer. If the unit
is being installed by a non-certified individual in an experimental aircraft, a factory-made intercom harness
must be used for the warranty to be valid.
PS Engineering, Inc. warrants this product to be free from defect in material and workmanship for a period
of three (3) years from the date of sale. During the first twelve (12) months of the three-year warranty period, PS Engineering, Inc., at its option, will send a replacement unit at our expense if the unit should be
determined to be defective after consultation with a factory technician. For the remaining twenty-four (24)
months of the three-year warranty period, PS Engineering, Inc., at its option, will send a similar replacement unit at the customers expense if the unit should be determined to be defective after consultation with
an authorized PS Engineering dealer.
All transportation charges for returning the defective units are the responsibility of the purchaser . All domestic transportation charges for returning the exchange or repaired unit to the purchaser will be borne by
PS Engineering, Inc. The risk of loss or damage to the product is borne by the party making the shipment,
unless the purchaser requests a specific method of shipment. In this case, the purchaser assumes the risk of
loss.
This warranty is not transferable. Any implied warranties expire at the expiration date of this warranty. PS
Engineering SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. This
warranty does not cover a defect that has resulted from improper handling, storage or preservation, or u nreasonable use or maintenance as determined by us. This warranty is void if there is any attempt to dissemble this product without factory authorization. This warranty gives you specific legal rights, and you may
also have other rights, which may vary from state to state. Some states do not allow the exclus ion of limitation of incidental or consequential damages, so the above limitation or exclusions may not apply to you.
All items repaired or replaced under this warranty are warranted for the remainder of the original warranty
period. PS Engineering, Inc. reserves the rights to make modifications or improvements to the product
without obligation to perform like modifications or improvements to previously manufactured products.
4.2 Factory Service
The units are covered by a three-year limited warranty. See warranty information. Call PS Engineering, Inc.
at (865) 988-9800 before you return any unit. This will allow the service technician to provide any other
suggestions for identifying the problem and recommend possible solutions.
After discussing the problem with the technician and you obtain a Return Authorization Number, ship
product to:
PS Engineering, Inc.
Attn: Service Department
9800 Martel Rd
Lenoir City, TN 37772
(865) 988-9800 FAX (865) 988-6619
Email: support@ps-engineering.com
Units that arrive without an RMA number, or telephone number for a responsible contact, will be
returned un-repaired. PS Engineering is not responsible for items sent via US Mail.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Appendix A Rev. 2, May 2016
Appendix A – PMA8000E Installation Drawings
J2 J1
Viewed from Back
15
30
44
1
16
31
15
30
44
1
16
31
Ground Lug
475-009-0001 (x2)
Screw 4-40 x 1/4"
475-440-0001 (x2)
Back plate assy
475-009-0001
ground lug (x2)
475-440-0001 (x2)
Screw w/washer
Ground lug detail
Rear plate detail (not to scale)
0.37in
3.87in
5.53in
6.04in
0.36in
0.96in
1.28 in
6.31in
1.28in
Ca u t i on : Appl y stea d y pr e s sure t o t h e bez e l wh i l e sc r e wing t he u n it i n t o t h e tra y to
ens u r e e v e n se a t ing o f t h e unit a nd c o nne c t o rs.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Appendix B November 2011
Appendix B –PMA8000E Radio Interconnect
NOTE 19
NOTE 23
NOTE 23
J1
29
44
43
3
4
5
6
31
32
13
14
15
30
9
10
11
12
NAV
1
Com #1 Com #2 Com #3
NAV
2
DME
UNSW
1
UNSW
2
Com 3 Mic Key
Com 3 Lo
Com 3 Mic Audio Hi
Com 3 Audio Hi
Com 2 Mic Audio Hi
Com 2 Lo
Com 2 Mic Key
Com 2 Audio Hi
Com 1 Mic Audio Hi
Unsw 1 Aud Hi
Unsw Aud 1 Lo
Com 1 Lo
Com 1 Mic Key
Com 1 Audio Hi
Nav 1 Lo
Nav 1 Audio Hi
Nav 2 Lo
Nav 2 Audio Hi
UNSW
3
UNSW
4
AUX
17
18
19
20
ADF
ADF Lo
ADF Audio Hi
7
8
DME Lo
DME Audio Hi
21
22
AUX Audio Hi
AUX Lo
23
Unsw 2 Aud Hi
Unsw Aud 2 Lo
Unsw 3 Aud Hi
Unsw Aud 3 Lo
Unsw 4 Aud Hi
Unsw Aud 4 Lo
15
36
29
44
43
3
4
5
6
31
32
13
14
15
30
9
10
11
12
Com 3 Mic Key
Com 3 Lo
Com 3 Mic Audio Hi
Com 3 Audio Hi
Com 2 Mic Audio Hi
Com 2 Lo
Com 2 Mic Key
Com 2 Audio Hi
Com 1 Mic Audio Hi
Unsw 1 Aud Hi
Unsw Aud 1 Lo
Com 1 Lo
Com 1 Mic Key
Com 1 Audio Hi
Nav 1 Lo
Nav 1 Audio Hi
Nav 2 Lo
Nav 2 Audio Hi
17
18
19
20
ADF Lo
ADF Audio Hi
7
8
DME Lo
DME Audio Hi
21
22
AUX Audio Hi
AUX Lo
23
Unsw 2 Aud Hi
Unsw Aud 2 Lo
Unsw 3 Aud Hi
Unsw Aud 3 Lo
Unsw 4 Aud Hi
Unsw Aud 4 Lo
15
36
Data +
24
26
Data -
24
26
Data +
Data -
MKR Ant.
RG-58A/U Coax
36
37
38
39
Ext. Marker Lamp (Blue)
Ext. Marker Lamp (White)
Ext. Marker Lamp (Amber)
MM Sense Input
White Lamp Output
Blue Lamp Output
Amber Lamp
MM Sense
Ext. Marker Indicator
1
2
27
28
Speaker Load
Speaker Load
MKR Ant.
RG-58A/U Coax
36
37
38
39
Ext. Marker Lamp (Blue)
Ext. Marker Lamp (White)
Ext. Marker Lamp (Amber)
MM Sense Output
White Lamp Output
Blue Lamp Output
Amber Lamp
MM Sense
1
2
27
28
Speaker Load
Speaker Load
Ext. Marker Indicator
MKR Ant. Gnd
MKR Ant. Gnd
NOTE 17, 16
NOTE 22
NOTE 22
NOTES 16, 17
NOTE 16, 17
J1
NOTE 18
NOTE 18
PMA8000E
J2 Conn.
PMA8000E
J2 Conn.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Appendix C Rev. 2, May 2016
Appendix C – PMA8000E Audio Interconnect
22
20
31
16
1
24
23
25
32
33
34
X-tie Audio Out
PTT Sense
Pilot Mic Lo
12
Playback
PMA8000E J2
CONNECTOR
(Sub-D
44-pin male on tray)
19
________
PAActive
Ent. #1 Audio (R)
Ent. #1 Audio (L)
Ent. #1 Audio Lo
Ent. #1 Input
5
6
7
Pilot Phones (R)
Pilot Phones (L)
Pilot Phones Lo
Pilot PhonesJack
14/28/5 Volt Lights Hi
14 V Lights Hi/28V Lights lo
Lights Lo
8
9
Ground Lug
Airframe Ground
11-33 VDC
PA Mute
Speaker Hi
Speaker Lo
44
43
Swap
Switch
Swap
10
11
Cockpit Speaker
7
6
5
28 V Lights Hi
28-Volt lights lo
7
6
5
14V/5V Lights Hi
14V/5V lights lo
5A Breaker
See Note3
Note 8
20
31
16
1
24
23
25
32
33
34
Playback
19
PA Active
Ent. #1 Audio (R)
Ent. #1 Audio (L)
Ent. #1 Audio Lo
Ent. #1 Input
5
6
7
Copilot Phones (R)
Copilot Phones (L)
Copilot Phones Lo
Copilot PhonesJack
14/28/5 Volt Lights Hi
14 V Lights Hi/28V Lights lo
Lights Lo
8
9
11-33 VDC
Speaker Hi
Speaker Lo
44
43
Swap
Cockpit Speaker
5A Breaker
See Note3
Note 12
33
34
35
Pilot Mic Audio
Pilot PTT
Pilot Mic Lo
Pilot Mic Jack
J1
J2
33
34
35
Copilot Mic Audio
Copilot PTT
Mic Lo
Copilot Mic Jack
J2
J1
PTT Sense
MKR Low Sense
14
13
Copilot Mic Low
MKR Low Sense
14
13
Copilot Panel
17
No Connect
22
Pilot's Panel
Copilot's Panel
35
37
3
X-tie Audio Input
3
X-tie Audio In X-tie Audio Out
35
36
39
Expansion Unit #1
Expansion Lo
Expansion Audio Input
Ground Lug
10
11
40
41
15
2
3
14
1
Expansion Audio Output (L)
Expansion Audio Output (R)
PMA8000E J1
Expansion Power
37
38
41
Expansion Unit #2
Expansion Lo
Expansion Audio Input
15
2
3
14
1
Expansion Audio Output (L)
Expansion Audio Output (R)
Expansion Power
27
26
28
Ent. #2 Audio (R)
Ent. #2 Audio (L)
Ent. #2 Audio Lo
Ent. #2 Input
MKR Low Sense Gnd
MKR Low Sense Gnd
4
CVR Out
42
CVR Low
4
42
CVR Out
CVR Low
Note 8
NOTE 5
NOTE 5
NOTE 4
NOTE 6
NOTES 9, 14
NOTE 21
NOTE 10
NOTE 9, 14
NOTE 20
NOTE 8
NOTE 7
AIRFRAME
GROUND
NOTE 20
NOTE 5
NOTE 5
NOTE 10
NOTE 12
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Appendix C Rev. 2, May 2016
INTERCONNECT NOTES:
1. All wiring must conform to MIL STD 22750 or 27500.
2. All wiring must be #24 AWG or larger, unless otherwise noted.
3. Pins 8 and 9 connected through a 5 A breaker Power and Ground to be #22 AWG or larger. For
best results, power and ground wires should be twisted together for greater noise immunity.
4. All shields should be grounded at respective audio panel only as shown, other end remains floating.
5. All phone and mic jacks must be floating from ground.
6. Passengers’ intercom expansion unit is connected to copilot audio panel as shown. Each expansion can support up to 6 passengers.
7. Pin 17 is grounded on copilot panel only.
8. Optional switch for IRS playback.
9. Music 1 in pilot’s panel is only available to the pilot station. Music 1 in copilot panel is available
to that station
Music 2 is only connected to copilot’s audio panel, and feeds the expansion unit only. For music
distribution information, see § 2.5.1
10. PA Mute is a TTL level logic output that is pulled low when PTT active. Pin 19 is switched to
ground when the PA mode is activated, placing pilot microphone on speaker output while pilot
PTT active. See Sect 2.4.12
11. Reserved
12. For music distribution information, see Section 2.5.1.
13. Reserved
14. Use care when connecting music signal and ground inputs. Refer to section 2.4.1.1 for more i nformation. Failure to properly interface music can result in added noise.
15. Reserved
16. Unswitched #2 is selectable over the cockpit speaker
17. Unswitched input #3 is adjustable
18. Audio from external marker received should be input to J -1 Pin 21, with respect to J1-Pin 22
(DME input), for -0414 & -0415 versions.
19. Serial Data Interface
20. Grounding Pin 13 places marker Receiver in High Sense mode.
21. For lighting details see §2.4.5
22. Speaker loads may be required on some older transceivers, consult radio manufacturer.
23. Marker output goes positive when marker lamp is active. Contact PS Engineering to interface to
Sandel SN3308.
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Appendix D Rev. 2, May 2016
Appendix D – Instructions for FAA Form 337 and continuing air-
worthiness
8.1 Instructions for FAA Form 337, Audio Panels
One method of airworthiness approval is through an FAA Form 337, Major Repair and Alteration (Airframe, Powerplant, Propeller, or Appliance) In the case of the PMA8000E, you may use the following text as a guide.
Installed audio selector and 6-place intercom, PS Engineering PMA8000E, part number 050-890-(XXXX) in ( location )
at station . Installed per AC43.13-2, Chapter 2, paragraph 23 (Instrument Panel Mounting). Installed per PS E ngineering Installation Operators Manual p/n 200-890-(XXXX), revision (), dated ( ).
These units are FAA-Approved under TSO C50c for audio amplifiers, and/or TSO C35d for Marker Beacon Receivers,
and meets appropriate environmental qualifications outlined in RTCA DO -160D as appropriate or this aircraft.
Interface to existing aircraft radios in accordance with installation manual and in compliance with practices listed in
AC43.13-2, Chapter 2. All wires are Mil -Spec 22759 or 27500. Connection to aircraft dimmer bus is
____________________. Power is supplied to the unit through a 3A circuit breaker (type and part number), and total
electrical load does not exceed % of the electrical system capacity with the PMA8000E added.
Aircraft equipment list, weights and balance amended. Compass compensation checked. A copy of the operation instru ctions, contained in PS Engineering document 202-890-( ), revision ( ), dated ( ), is placed in the aircraft records. All work
accomplished listed on Work Order .
8.2 Instructions for Continuing Airworthiness, Audio System
Sample ICA Checklist for PS Engineering Audio System:
Section
Item
Information
1
Introduction
Installation of audio control panel with integrated marker beacon receiver and
intercommunications system.
2
Description
Installation as described in manufacturer’s installation manual referenced on
FAA Form 337, including interface with other avionics audio as required.
3
Controls
See installation and operator’s guide referenced on FAA Form 337.
4
Servicing
None Required
5
Maintenance Instructions
On Condition, no special instructions
6
Troubleshooting
In the event of a unit problem, place the unit into “off,” “fail -safe” and/or
“emergency” mode. This allows pilot communications using COM 1. Follow
checkout instructions in the installation manual referenced on the FAA Form
337. For a specific unit fault, contact the manufacturer at (865) 988 -9800 for
special instructions.
7
Removal and replacement information
Removal: Using a 3/32” Allen-head wrench, carefully unscrew the locking
screw located in the center of the unit. While turning the wrench CCW, gently
pull on the EDGES of the bezel until the unit is free from the mounting tray.
Installation: Engage the locking screw at the back. Turn the locking screw CW,
while applying slight pressure to the edges of the bezel. Do not over tighten!
8
Diagrams
Not applicable
9
Special Inspection Requirements
Not Applicable
10
Protective Treatments
Not Applicable
11
Structural Data
Not Applicable
12
Special Tools
None
13
Not Applicable
Not Applicable
14
Recommended Overhaul Periods
None
15
Airworthiness Limitations
Not Applicable
16
Revision
To be determined by installer
PS Engineering
PMA8000E Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0304 Appendix E Rev. 2, May 2016
Appendix E – RTCA DO160D Environmental Qualification Form
Audio Selector Panel/Intercom/Marker Beacon Receiver
Part Number: 050-890-( )
FAA TSO Number: C50c, C35d
Manufacturer: PS Engineering Incorporated 9800 Martel Road Lenoir City TN 37772
Conditions
Section
Conducted Tests
Temperature and Altitude
Low Temperature
High Temperature
In-flight Loss of Cooling
Altitude
Decompression
Overpressure
4.0
4.5.1
4.5.2
4.5.4
4.6.1
4.6.2
4.6.3
Equipment tested to CAT A1 & D1
-55° C Survival, -15°C Low Operating (A1)
+85°C Survival, +70°C High Short Time Operating
Not Applicable, no cooling required
50,000’ unpressurized (D1)
Not Applicable
Not Applicable
22.0
Equipment tested to Category XXE2
Lightning Direct Effects
23.0
Category X, not tested
Icing
24.0
Category X, not tested
ESD
25.0
Category X, not tested
Temperature variation 5.2 Equipment tested to Category C
Humidity 6.0 Equipment tested to Category A
Shock 7.0 Equipment tested to Operational test only
Operational 7.2 Equipment tested to Operational test only
Crash Safety 7.3 Equipment tested to Operational test only
Vibration 8.0 Equipment tested to Category S, Zone M
Explosion 9.0 Category X, not tested
Waterproofness 10.0 Category X, not tested
Fluids Susceptibility 11.0 Category X, not tested
Sand and Dust 12.0 Category X, not tested
Fungus 13.0 Category X, not tested
Salt Spray 14.0 Category X, not tested
Magnetic Effect 15.0 Equipment tested to Category Z
Power input 16.0 Equipment tested to Category B
Voltage Spike 17.0 Equipment tested to Category A
Audio Frequency Susceptibility 18.0 Equipment tested to Category B
Induced Frequency Susceptibility 19.0 Equipment tested to Category A
Radio Frequency Susceptibility 20.0 Equipment tested to Category T
Radio Frequency Emission 21.0 Equipment tested to Category B
Lightning Induced Transient Susceptibility
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