9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
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Document P/N 200-228-0000
Revision 4, December 2013
Audio Selector Panel with VHF Communications Transceiver and
High-fidelity Stereo Intercom
System Installation and Operation Manual
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. 2013 ©
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.
FAA-TSO C139, TSO C169a (PARTIAL)
The product warranty is not valid unless this product is installed by an
Authorized PS Engineering dealer.
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 — FAA TSO ............................................................................................................. 1-2
1.1.1 PAR200 .................................................................................................................................................. 1-2
1.1.2 TRIG TY91-SERIES: .................................................................................................................................. 1-2
1.5 SPECIFICATIONS................................................................................................................................... 1-2
1.6 EQUIPMENT SUPPLIED ........................................................................................................................ 1-4
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED.................................................................................. 1-4
1.8 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 TRIG TY91 MOUNTING REQUIREMENTS ....................................................................................................... 2-2
2.3.4 AUDIO PANEL MOUNTING RACK INSTALLATION ........................................................................................... 2-2
2.4 CABLE HARNESS WIRING............................................................................................................................. 2-2
2.4.1 NOISE ...................................................................................................................................................... 2-2
2.4.2 AUDIO PANEL TRAY AND CONNECTOR ASSEMBLY........................................................................................ 2-3
2.4.3 AUDIO PANEL INTERFACE .......................................................................................................................... 2-3
2.5 TY91 VHF COM INTERFACE ..................................................................................................................... 2-4
2.5.1 TY91 CONNECTOR.................................................................................................................................... 2-4
2.5.2 INTERFACING THE TY91 AS SINGLE, COM 1 OR COM 2............................................................................... 2-4
2.5.3 ANTENNA CABLE ...................................................................................................................................... 2-5
2.5.4 TY91 TNC ANTENNA CONNECTION............................................................................................................ 2-5
2.5.5 VHF COMMUNICATIONS ANTENNA INSTALLATION ....................................................................................... 2-6
2.6 TELEPHONE (DUPLEX) FUNCTION FOR BLUETOOTH ® CAPABLE CELL PHONES ........................................ 2-6
2.6.1 PARING SEPARATE MUSIC AND TELEPHONE DEVICES...................................................................................... 2-7
2.6.2 TELEPHONE SIDETONE ............................................................................................................................... 2-7
2.6.3 "SWAP" MODE.......................................................................................................................................... 2-7
2.6.4 BACKLIGHTING ......................................................................................................................................... 2-7
2.6.5 UNSWITCHED INPUTS................................................................................................................................. 2-8
2.7 INTERCOM WIRING....................................................................................................................................... 2-8
2.7.1 MUSIC INPUTS .......................................................................................................................................... 2-8
2.7.2 MUSIC MUTING ......................................................................................................................................... 2-9
2.8 DISASSEMBLY .............................................................................................................................................. 2-9
2.9 ADJUSTMENTS ........................................................................................................................................... 2-10
2.10 MICROPHONE GAIN REDUCTION ............................................................................................................... 2-10
2.11 REASSEMBLY........................................................................................................................................... 2-11
2.12 COMMUNICATIONS ANTENNA INSTALLATION NOTES ................................................................................. 2-13
2.12.1 ANTENNA LOCATION............................................................................................................................. 2-13
2.13 TY91 ADJUSTMENTS ............................................................................................................................... 2-13
2.14 PAR200 PIN ASSIGNMENTS ...................................................................................................................... 2-15
2.15 POST INSTALLATION CHECKOUT .............................................................................................................. 2-16
2.16 UNIT INSTALLATION................................................................................................................................. 2-16
2.17 OPERATIONAL CHECKOUT....................................................................................................................... 2-16
2.17.1 TY91 CHECKOUT ................................................................................................................................. 2-17
2.17.2 TELEPHONE CHECKOUT..................................................................................................................... 2-17
2.18 FINAL INSPECTION................................................................................................................................... 2-17
Section III OPERATION................................................................. 3-1
3.1 SCOPE....................................................................................................................................................... 3-1
3.2 POWER AND FAIL SAFE (1) ........................................................................................................................... 3-1
3.2.1 TY91 RADIO POWER (AS COM 1 ONLY)...................................................................................................... 3-1
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page ii Rev. 4, Dec. 2013
3.2.2 ICS AND MUSIC VOLUME CONTROLS (1)..................................................................................................... 3-1
3.3 COMMUNICATIONS TRANSMIT (XMT) SELECTION (2)................................................................................... 3-2
3.4 COM AUDIO SELECTOR (3) ......................................................................................................................... 3-2
3.5 NAVAID AUDIO SELECTION (4) ...................................................................................................................... 3-2
3.6 VHF TRANSCEIVER CONTROL (5)................................................................................................................. 3-3
3.6.1 FREQUENCY SELECTION (6) ....................................................................................................................... 3-3
3.6.2 TUNING 8.33 KHZ CHANNEL SPACING ......................................................................................................... 3-4
3.6.3 RADIO VOLUME (7)................................................................................................................................... 3-5
3.6.4 RADIO SQUELCH ....................................................................................................................................... 3-5
3.6.5 COCKPIT SPEAKER..................................................................................................................................... 3-5
3.6.6 MONITOR MODE (WHEN PAR200 IS COM 1 OR STAND ALONE ONLY)............................................................. 3-6
3.7 INTERCOM OPERATION (8)........................................................................................................................... 3-6
3.7.1 INTELLIVOX® VOX-SQUELCH.................................................................................................................... 3-6
3.7.2 MONO HEADSETS IN STEREO INSTALLATION................................................................................................. 3-7
3.7.3 INTERCOM MODES (8) ............................................................................................................................... 3-7
3.8 TELEPHONE MODE ...................................................................................................................................... 3-8
3.8.1 BLUETOOTH TELEPHONE CONNECTION........................................................................................................ 3-8
3.8.2 TELEPHONE (TEL) OPERATION .................................................................................................................. 3-8
3.9 MUSIC INPUTS ............................................................................................................................................. 3-9
3.10 MUSIC MUTING (9).................................................................................................................................... 3-9
3.10.1 MUSIC 2 MUTE CONTROL...................................................................................................................... 3-10
3.10.2 LIQUID CRYSTAL DISPLAY CONTROL ...................................................................................................... 3-10
Section IV – Warranty and Service ......................................................... 4-1
4.1 WARRANTY ................................................................................................................................................. 4-1
4.2 FACTORY SERVICE....................................................................................................................................... 4-1
Appendix A – External PTT Hook Up .......................................................................................A
Appendix B – PAR200 Installation Drawings ....................................................................................... B
6.1 TY91 RADIO INSTALLATION DRAWINGS........................................................................................................... B
Appendix C – J1 Connector Interconnect ....................................................................................... C
Appendix D – J2 Connector Interconnect .......................................................................................D
Appendix E – Instructions for FAA Form 337 and continuing airworthiness ......................................................... E
9.1 INSTRUCTIONS FOR FAA FORM 337, AUDIO PANELS........................................................................................ E
9.2 INSTRUCTIONS FOR CONTINUING AIRWORTHINESS, AUDIO SYSTEM .................................................................. E
9.3 ICA FOR TRIG TY91/92 RADIO: ..................................................................................................................... E
Appendix F – RTCA DO160G Environmental Qualification Form ....................................................................... F
Rev Date Change
New June 2013 Release for TSO Submittal
1 July 2013 Update with FAA-TSO Information
1.1 August 2013 Changed A1 and A2 to N1 and N2
2 August 2013 Updated with 8.33 kHz channeling information
3 December 2013 Corrected wording in §2.15, changed note in §2.9 for small screws.
4 December 2013 Added Alternate TY91(L) Part number, harmonize TY91 pin descriptions, and ETSO information
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 1-1 Rev. 4, Dec. 2013
Section I – GENERAL INFORMATION
1.1 INTRODUCTION
The PAR200 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 defined mode annunciation and selection.
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 PAR200.
1.2 SCOPE
This manual provides detailed installation and operation instructions for the PS Engineering PAR200series of Audio Selector Panel/Intercom Systems. This includes the following units:
Model Description PS Engineering
Part Number
PAR200 Stereo Audio Selector Panel with control for VHF
Communications radio. Includes stereo intercom,
with Bluetooth Interface
050-228-0100
TY91(L) 00882-00-05
VHF Communications Transceiver
or
TY91(L) 01193-00-01
VHF Communications Transceiver
050-228-8744
1.3 EQUIPMENT DESCRIPTION
The PAR200 is a state-of-the-art audio isolation amplifier and audio selector that contains an automatic
voice activated (VOX) intercom system and serial data control/indication for a Trig VHF communications
receiver. It can switch two transceivers (Com 1, Com 2) and two receivers (Nav 1, Nav 2).
A Bluetooth ® TELEPHONE feature allows the PAR200 to interface the aircraft headset(s) and Bluetooth
enabled cellular devices.
Warning: Use of non-aviation approved cellular telephone equipment may be prohibited by regulation.
PS Engineering is not responsible for unauthorized airborne use of cellular telephones.
For airborne use, the PAR200 must be interfaced with an approved system.
There are four unswitched inputs, available for traffic or EGPWS, autopilot disconnect tones, and/or radar
altimeter warning.
Pushbutton switches select one of the communication transceivers for the pilot and copilot position, and
allows radio transmission. In "Split Mode" the PAR200 has the ability to allow the pilot to transmit on
Com 1 while the copilot can transmit on Com 2. A fail-safe mode connects the pilot headphone and microphone to COM 1 if power is removed for any reason, or if the power switch is placed in the Off (Failsafe) position. Unswitched input #1 is also provided to the pilot headphone in fail-safe
A four-station voice activated (VOX) intercom is included in the PAR200. 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 knob controls the intercom volume level for the all headsets, while the large knob controls the music
volume. Intercom squelch is automatic.
A concentric rotary data input knob on the right side of the unit controls less essential functions and configurations.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 1-2 Rev. 4, Dec. 2013
1.4 APPROVAL BASIS — FAA TSO
1.1.1 PAR200
The PAR200 Intercom is FAA approved under TSO C139 (Aircraft Audio Systems and Equipment) and
contains partial elements of TSO C169a (VHF Radio Communications Transceiver Equipment Operating
Within Radio Frequency Range 117.975 To 137.000 Megahertz).
The partial TSO applies to C169a, because the PAR200 unit provides control and display only for the
TY91-series of VHF communications equipment.
The PAR200-series Audio Selector Panels are FAA approved under TSO C139 (Aircraft Audio Systems
and Equipment). The VHF Communication Transceiver portion of the PAR200 is TSO approval under
TSO C169a.
The audio system complies with relevant portions of ED-14C/DO-160G (Environmental Conditions and
Test Procedures for Airborne Equipment), DO-254, (Design Assurance Guidance for Airborne Electronic
Hardware) and ED-18/DO-214 (Audio Systems Characteristics and Minimum Operational Performance
Standards for Aircraft Audio Systems).
NOTE:
The conditions and tests for TSO approval of this article are minimum performance standards.
Those installing this article, on or in a specific type or class of aircraft, must determine that the
aircraft installation conditions are within the TSO standards. The article may be installed only
following 14 CFR Part 43 or the applicable airworthiness requirements.
1.1.2 Trig TY91-Series:
The VHF Communication Radio (Trig Avionics TY91L)is EASA and FAA-approved under ETSO
210.10042695, Rev, B or Subsequent Revision, under 2C169a Class C, E, H1, H2, 4, 6, ETSO 2C128,
TSO C169a Class C, E, 4, 6, TSO C128a TSO-C169a, ETSO 2C169a Class C, E, H1, H2, 4, 6, ETSO
2C128, TSO C169a Class C, E, 4, 6, TSO C128a EUROCAE ED-23C, EUROCAE ED-67, EUROCAE
ED-14F (RTCA DO-160F), RTCA DO-186B, RTCA DO-207 ED-12B (RTCA DO-178B) Level B DO254 Level C
FCC Identification VZI00882
Applicable documents EUROCAE ED-23C, EUROCAE ED-67, EUROCAE ED-14F (RTCA DO-160F),
RTCA DO-186B, RTCA Software ED-12B (RTCA DO-178B) Level B Hardware DO-254 Level C
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 operation.
1.5 SPECIFICATIONS
Audio Selector/Intercom
FAA TSO C139
Communications Transceiver FAA TSO-C169a (PARTIAL)
Environmental Qualification DO-160G
A1C1BAESRXXXXXXZ B(XX)ABATTBXXA2E2 XXX
Operating Temperature Range:
-20º C to 55ºC , short term -40°C to +70°C
Altitude:
Up to 35,000 feet in an non-pressurized area
WEIGHT
PAR200 Unit
Rack with connectors
1.1 lb. (0..49 kg)
0.51 lb. (0.24 kg)
AUDIO PANEL POWER REQUIREMENTS (Including Internal Lighting):
Voltage:
11-33 VDC
Maximum Current: 2.5 Amp (Externally protected by a 3A pull-type
breaker)
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 1-3 Rev. 4, Dec. 2013
Audio Selector Specifications
Audio selector panel input impedance:
510
Input Isolation: -60 dB (min.)
Receiver Inputs: 4 (Com 1, Com 2, Nav 1, Nav 2)
Unswitched Inputs: 4
Transmitter Selections: 3 (Com 1, Com 2,
Com1/2)
Headphone Impedance:
150 – 1000
Headphone Output: 38 mW each headset, no clipping <1% THD typi-
cal into 150
Speaker Output (into 4 ) with no clipping
14 VDC:
28 VDC:
3 Watts (min.)
10 Watts (min.)
Microphone Impedance:
150 - 600
Intercom Specifications
Intercom Positions: 4 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
TY91 VHF Transceiver Specifications
Radio Type
Amplitude Modulation (AM) Aircraft Transceiver
Channels (Transmit & receive)
760 channels, 25KHz spacing
2280 channels, 8.33 kHz spacing
118.000 – 136.992MHz
Frequency Selection
On PAR200 Audio Panel
Frequency Display
Alpha/numeric LCD display (with backlighting) on
PAR200
Frequency control
PLL frequency synthesis, which is microprocessor
controlled Memory is store in non-volatile EPROM
Power consumption Receive (no signal)
Transmit
2.8W @ 14VDC
3.2A
Input Voltage
11-33 VDC 5A Circuit Breaker.
Power output
5 watts (nominal) VSWR Tolerance < 2:1 for best
operation (5:1 without damage)
Receiver sensitivity
-6dB SINAD @ 5µV (1KHz audio with 70% modulation)
Data Interface
RS232
Headset volume output
Nominal 100 milliwatts output to 600 Ω
Temperature range
-20 to +70 degrees Celsius
Stability
< +/- 4.00 ppm
Dimensions
W-2.5” x H-1.9” x D6.3” (plus 1.5” for harness)
W-66mm xH-48mm x D-160 (plus 35mm for
harness)
Weight
.77 lbs
.350 kg
FCC ID:
VZI00882
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 1-4 Rev. 4, Dec. 2013
1.6 EQUIPMENT SUPPLIED
1 ea. of the following items:
Model Description PS Part Number Trig P/N
PAR200 PAR200 Audio Panel with intercom and radio function control 050-228-0100
TY91(L) VHF Communications Transceiver 050-228-8744
00882-00-05
Installation Kit: 250-890-0000, containing:
Description Quantity Part Number
PAR200 installation rack assembly 1 430-890-0040
PAR200 Rack back plate 1 430-890-0050
44-pin connector kit 2 120-891-2045-
Backshell, connector 2 625-025-2465
Backshell Retainer 2 431-891-0100
4 40 X 7/16 screw w/nylon patch 4 475-440-0007
4 40 X 3/8 screw w/lock washer 4 475-440-1038
4 40 X 1/8 screw w/lock washer 2 475-440-0001
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
TY91 Installation Kit 250-228-0200, Containing:
Description Quantity Part Number
DB 25 Connector , Crimp type 1 425-025-0010
DB 25 Connector hood 1 625-025-0001
DB 25 Thumb Screws 4-40 x 1.94 2 475-002-0002
Crimp female sockets 25 425-020-5090
TNC Crimp Connector 1 425-400-1223
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED
a. Circuit Breaker: 1 ea; 3 amp PULL TYPE REQUIRED for PAR200
b. Circuit Breaker: 1 ea; 5 amp PULL TYPE REQUIRED for transceiver power (to TY91)
c. Headphone Jacks (up to 4 Stereo, as Required)
d. Microphone Jacks (up to 4 as Required)
e. Headphones, 150 (Stereo), up to 4 as required
f. Microphones, up to 4 as required
g. VHF Communication antenna 118-137 MHz, VSWR <2:1 (FAA-TSO approved is recommended)
h. Mounting hardware for TY91, as appropriate
i. Interconnect Wiring, coaxial cable (RG400 or RG142B or equivalent)
1.8 LICENSE REQUIREMENTS
In some localities other than the United States, an Aircraft Radio Station license may be required. In the
United States, you do not need a license to operate a two-way VHF radio aboard aircraft operating domestically. Aircraft operating domestically do not land in a foreign country or communicate via radio with
foreign ground stations. Flying in international or foreign airspace is permitted, so long as the previous
conditions are met. If you travel to a foreign destination, however, (e.g., Canada, Mexico, Bahamas, British Virgin Islands) a license is required. Visit http://wireless.fcc.gov for more information.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 2-1 Rev. 4, Dec. 2013
Section II - INSTALLATION
2.1 GENERAL INFORMATION
2.1.1 SCOPE
This section provides detailed installation and interconnection instructions for the PS Engineering
PAR200 Audio Selector Panel/Intercom/ with VHF communication radio controls.
Please read this manual carefully before beginning any installation to prevent damage and postinstallation problems. Installation of this equipment requires special tools and knowledge.
2.1.2 Certification Requirements
NOTE
The PAR200 Intercom is FAA approved under TSO C139 (Aircraft Audio Systems and Equipment) and
contains partial elements of TSO C169a (VHF Radio Communications Transceiver Equipment Operating
Within Radio Frequency Range 117.975 To 137.000 Megahertz).
The partial TSO applies to C169a, because the PAR200 unit provides control and display only for the
TY91-series of VHF communications equipment.
The conditions and tests for TSO approval of this article are minimum performance standards. Those
installing this article, on or in a specific type or class of aircraft, must determine that the aircraft in-
stallation conditions are within the TSO standards.
The article may be installed only following 14 CFR Part 43 or the applicable airworthiness require-
ments.
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
components supplied with the list in Section 1.6 (B). If any claim is to be made, save 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 Engineering 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 PAR200 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 adequate
cooling air provided.
2.3.2 Mounting Requirements
The PAR200 must be rigidly mounted to the instrument panel of the aircraft structure, within view and
reach of the pilot position(s). The unit may be mounted in any area where adequate clearance 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
current wires.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 2-2 Rev. 4, Dec. 2013
2.3.3 Trig TY91 mounting requirements
The TY91 remote VHF Communications radio is mounted to the aircraft structure with 4 ea #6-32 (not
supplied) screws through the mounting flange. Guidance can be found in AC 43.13-2B, Chapter 2.
Figure 2-1 TY91 VHF Transceiver (Remote Mount)
2.3.4 Audio Panel Mounting Rack Installation
Remove the audio panel 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. Carefully slide the unit free of the
tray. Set the unit aside in a safe location until needed. Install the tray using six 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.
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. Two- 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.
Custom factory wiring harnesses can be purchased from PS Engineering, call 865-988-9800 for details or
visit our website http://www.ps-engineering.com/downloads.shtml and click on Work Sheet for the appro-
priate product.
2.4.1 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 PAR200 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 connector, J2 pins 8 & 9, of the PAR200 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 PAR200 was designed in a RFI hardened chassis and has internal Electromagnetic Interference (EMI) filters on all inputs and outputs.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 2-3 Rev. 4, Dec. 2013
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
airframe that are detected by the audio system. Follow the wiring diagram very carefully to help ensure 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 center
of the back plate.
Radiated signals can be a factor when low level microphone signals are "bundled" with current carrying
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.
2.4.1.1 Music Inputs and Noise
PAR200 units utilize differential music inputs 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 ground inputs on the
PAR200. The power for IFE and audio panel should be a common bus.
If a music jack is installed for Music 1 or 2, we strongly recommend isolating the jack from airframe
ground, by using an insulated mounting plate.
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 Audio Panel Tray and Connector Assembly
The rack connectors mate with two 44-pin connectors in the PAR200. The connectors are a sub-miniature
crimp-type, and require the use a hand crimp tool, from table below (or equiv.). The connectors are
mounted to the tray back plate with #4-40 screws (475-440-1038), from the inside of the tray and the
mounting block, 431-891-0100. Ensure that proper strain relief and chafing precautions are made during
wiring and installation, using the cable clamp (625-001-0002).
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 PAR200 Connector Pin crimping tools
Manufacturer Crimping Tool Positioner Extraction tool
Mil-Spec M22520/2-01 M22520/2-08
Daniels AFM8 K13-2
Table 2-2 TY91 Connector Crimping tools
2.4.3 Audio Panel interface
The PAR200 is designed to interface with standard aircraft avionics, and presents a 500 receiver impedance. For best results, a twisted-shielded cable is recommended from the avionics audio source to the
audio panel, with the shield grounded at the audio panel end.
Inputs N1 and N2 can be used to control navigation receiver audio, J1 Pins 17 WRT 18 and J1 19 WRT
20, respectively.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 2-4 Rev. 4, Dec. 2013
Some avionics do not provide a separate audio low, and may introduce additional electrical noise into the
system. For best results, connect the audio low from the audio panel to the radio ground, using one conductor of the twisted-shielded cable.
2.5 TY91 VHF COM Interface
2.5.1 TY91 Connector (Trig TY91(L) -05 only)
The TY91 has a 25-pin crimp type connector.
1 Com Audio Low
2 COM Audio High
3 No Connect
4 No Connect
5 RS232RX (data in-TX)
6 RS232TX (data out-RX)
7 No Connect
8 No Connect
9 Aircraft Ground
10 No Connect
11 No Connect
12 Controller Radio Power
13 Radio On
14 No Connect
15 COM Mic Key
16 No Connect
17 No Connect
18 Transmit Interlock
19 Airframe Ground
20 No Connect
21 No Connect
22 Ground (Not Used)
23 COM Mic Audio Hi
24 Aircraft Power
25 Aircraft Power
2.5.2 Interfacing the TY91(L) as Single, COM 1 or COM 2
The PAR200/ Trig TY91(L) can be configured to be a stand-alone COM, or as COM 1 or COM 2 in a
multiple radio installation. In this case, PS Engineering recommends that the PAR200/TY91(L) be used
as COM 2. In the event of a failure, the PAR200 will be in fail-safe, and COM 1 can be used.
If the TY91(L) is used as COM 1, the PAR200 can fail-safe to it, because it is divided internally as audio
panel and COM control. In addition, the TY91(L) power supply is provided by an independent circuit
breaker and power supply in the PAR200. See § 3.2.1 for operational information.
The PAR200 must be configured at installation to be used as COM 1 or COM 2, by removing the top
cover, and placing the DIP switches as shown in Figure §2-4 (page 2-11).
COM 1 OFF J4 Switch 6
COM 2 ON
Table 2-3 Radio Selection
When properly selected, the PAR200 LCD display will read either COM 1, or COM 2.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
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2.5.3 Antenna Cable
Use a high quality 50 ohm coaxial cable, such as RG400 or RG142B. When routing the cable, ensure that
you:
Route the cable away from sources of heat.
Route the cable away from potential interference sources such as ignition wiring, 400Hz genera-
tors, fluorescent lighting and electric motors.
Allow a minimum separation of 300mm (12 inches) from an ADF antenna cable.
Keep the cable run as short as possible.
Avoid routing the cable round tight bends.
Avoid kinking the cable even temporarily during installation.
Secure the cable so that it cannot interfere with other systems.
2.5.4 TY91 TNC Antenna connection
The VHF Com radio uses a solder/crimp TNC connector, Amphenol 31-2.
This section describes the technique for attaching the antenna cable to the supplied TNC connector.
The supplied connector can be completed using a wide range of commercial crimp tools (for example the
Tyco 5-1814800-3). The die apertures for the inner pin and the outer shield should be approximately 1.72
mm and 5.41 mm respectively.
1. Strip back the coax cable to the dimensions in the table, as shown in the diagram below. Slide 25
mm (1 inch) of heat shrink tubing over the cable.
2. Slide the outer crimp sleeve over the cable – it must go on before securing the center contact.
3. Crimp the center contact to the cable.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
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4. Insert the cable into the connector – the centre contact should click into place in the body, the in-
ner shield should be inside the body of the connector and the outer shield should be outside the
body.
5. Crimp the outer sleeve over the shield.
6. Slide heat shrink tubing forward (flush to connector) and heat to shrink the tubing.
2.5.5 VHF Communications Antenna Installation
The antenna should be installed according to the manufacturer’s instructions. The following considerations should be taken into account when locating the Antenna.
The antenna should be well removed from any projections, the engine(s) and propeller(s). It
should also be well removed from landing gear doors, access doors or others openings which will
break the ground plane for the antenna.
Avoid mounting the antenna within 2 feet of a GPS antenna, and as far as practical from any
ELT antenna.
If the simultaneous use of two radio units is required then each antenna should be as far apart as
practicable for maximum isolation. We would recommend placing one antenna on top and one
on the bottom of the airframe. The Transmit Interlock function should also be used in this case
(section 5.6.8).
Where practical, plan the antenna location to keep the cable lengths as short as possible and
avoid sharp bends in the cable to minimize the VSWR.
Electrical connection to the antenna should be protected to avoid loss of efficiency as a result of the presence of liquids or moisture. All antenna feeders shall be installed in such a way that a minimum of RF
energy is radiated inside the aircraft.
2.5.5.1 Antenna Ground Plane
When a conventional aircraft monopole antenna is used it relies on a ground plane for correct behavior.
For ideal performance the ground plane should be as large as practical; in any case at least one square
meter. In a metal skinned aircraft this is usually easy to accomplish, but is more difficult in a composite
or fabric skinned aircraft. In these cases a metallic ground plane should be fabricated and mounted under
the antenna.
The thickness of the material used to construct the ground plane is not critical, providing it is sufficiently
conductive. A variety of proprietary mesh and grid solutions are available. Refer to Advisory Circular
AC43.13-2B, Chapter 3.
2.6 TELEPHONE (Duplex) Function for Bluetooth ® capable Cell Phones
The TELEPHONE mode in the PAR200 is also compatible with cellular telephones with Bluetooth®.
hands-free headset interface. There is no wiring required, all functions are handled in the Bluetooth telephone.
The PAR200 Bluetooth® interface is always “discoverable”, so you just need to search for the PAR200
from your Bluetooth-equipped phone or music source. The default access code is 0000, if needed. Once
the PAR200 has been “paired” with your Bluetooth device.
The telephone is distribution as dictated by the ISO, ALL, CREW.
ISO mode - only the Pilot is on the telephone.
CREW mode - only the Pilot and Copilot are on the telephone.
ALL mode - everyone is on the telephone.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
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You can answer a call when you hear the “telephone ringing” in your headset. To answer the phone call
will require you to have access to your phone and selecting the answer function of that telephone. There is
no front panel button that will allow you to answer the phone.
2.6.1 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 music source must be paired first, before the telephone, if the telephone
also has music streaming capability. Otherwise, the Smartphone will also take over the music streaming.
Only one can be a phone. If the telephone can provide both telephone and streaming music, when the
phone is connected, it will automatically disconnect the music device. If it is possible to turn off the music
streaming function on the telephone, then both the telephone and a separate Bluetooth® enabled music
device can be use at the same time.
If Bluetooth connections become unreliable or do not connect, you may need to reset the PAR200. Turn
the PAR200 off, press & hold the N1 & N2 buttons while turning the unit back on, continue to hold the
N1 & N2 for 3 seconds.
NOTE
FCC Regulations (47 CFR 22.925) prohibit airborne operation of cellular phones;
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 ground). When any aircraft leaves the
ground, all cellular telephones on board that aircraft must be turned off. The use of cellular telephones
while aircraft is on the ground is subject to FAA regulations.
FAA Regulation 14 CFR 91.21(5) allows for use of portable electronic devices 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.
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 www.ps-engineering.com.
2.6.2 Telephone sidetone
The PAR200 will provide cell phone sidetone (your side of the telephone conversation) in the factory configuration. Some telephones do provide sidetone the PAR200 can be configured to remove this sidetone by
placing the DIP switch in the proper configuration.
Cell phone sidetone created by audio panel OFF J5 Switch 6
No cell phone sidetone ON
Table 2-4 Telephone sidetone switch
2.6.3 "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 and 2 by depressing this switch without having to
turn the mic selector switch. This yoke-mounted switch eliminates the need to remove your hands from
the yoke to change transceivers.
2.6.4 Backlighting
The PAR200 has an automatic dimming of the pushbutton annunciation LEDs controlled by a photocell.
Control of the unit backlighting is through the aircraft avionics dimmer. For 12-Volt aircraft, connect J2
Pins 6 and 7 to the aircraft dimmer bus, and pin 5 to ground.
The LCD display backlighting is controlled by the automatic photocell dimming. In addition, the text inverts for nighttime mode when the ambient light is low.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
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If an external dimmer control is not used, a constant back light illumination can be established for nighttime viewing. Pin 6 or 7 (depending on system voltage) must be tied to power (J2, pin 8 or 9) for the back
lighting system to work. The photocell mounted in the unit face will automatically adjust the intensity of
the push-button annunciation green LEDs.
2.6.5 Unswitched inputs
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 and copilot regardless of the audio configuration, and
will mute the entertainment inputs based on the mode. These 510 Ω inputs can be used for altimeter DH
audio, GPS waypoint audio, autopilot disconnect tones, or any other critical audio signal. Unswitched #1
is always presented to the crew headphones, and is available to the pilot in fail-safe (off) mode.
Unswitched
Input
Hear in
Fail Safe
Hear in
Crew Headset
Gain
1 Yes Yes 1:1(fixed)
2 No Yes 1:1(fixed)
3 No Yes Adjustable
4 No Yes 1:1(fixed)
Table 2-5 Unswitched input table
J1, pins 31, 29 and J2 pin 15 are unswitched, unmuted inputs # 1, 3 and 4, respectively. These inputs are
presented to the pilot and copilot 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, autopilot
disconnect tones, or any other critical audio signal.
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.
Unswitched #1 is presented to the pilot headphone in fail-safe (off) mode.
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 control the volume
level of that unswitched input from 50% to 200% of the input level. Refer to Adjustments section.
2.7 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.
NOTE
The system harness can be custom made by PS Engineering, Inc. Simply call the factory or www.ps-
engineering.com to obtain a wire harness work sheet. The harness will be made to your specifications and
fully functionally tested. Harness can be ordered with jack, or without the intercom jacks installed, for
easier wire routing through the aircraft.
2.7.1 Music Inputs
The PAR200 has two INDEPENDENT inputs wired into the rear connectors, in addition to the Bluetooth® music streaming (which is presented as Music 1). Music input number 1 is J2 pins 23 (left channel) and 24 (right channel), with respect to pin 25, and Music number 2 is connected to 26 (left channel),
27 (right channel), with respect to 28.
Music #1 is available to the pilot and copilot positions, only, in normal configuration. Music 1 can be hear
by all aircraft occupants, if Music 1 all headsets is activated. See §2.7.1.1
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 2-9 Rev. 4, Dec. 2013
Music 2 is only heard by the passengers.
See § 3.9 for music distribution information.
NO T E
Us e t h e l o w l e v e l out p ut of an y ad di t ion a l e n t e rt ai nm en t d evi c e t o con n e ct to th e a udi o pa n e l . Ma xi m um si gn al l evel is 3 VAC p- p. DO N O T use a spe a ke r - l evel ou t pu t ,
th is wil l cau s e i n t er n a l da m a g e i n t h e au d io pa n el .
2.7.1.1 Music 1 all headsets (J2, Pin 22)
If J2, Pin 22 is connected to aircraft ground, Music 1 will also be heard in the passengers’ headsets. Music
2 will be disabled when J2, Pin 22 is grounded.
2.7.2 Music muting
The PAR200-system incorporates a "Soft Mute™" system. This will mute the music devices during intercom conversation or radio reception. The four muting modes are controlled by the front panel “Mute”
button. See §3.9 for more information.
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.
All entertainment devices must be switched off for both takeoff and landing.
2.7.2.1 Music 2 Mute (J2 Pin 13 & 14)
Connecting J2 pin 13 to pin 14 (or ground) through a SPST switch places the music #2 music source into
the Karaoke Mode. In this mode, incoming music and intercom conversation will not mute the music for
the passengers’ intercom net. This allows uninterrupted music during casual conversation.
2.8 Disassembly
Remove the top cover, by removing five (5) Phillips head screws from the PAR200 top.
NOTE: IF PRESENT, THE SCREW IN THE REAR OF THE PANEL IS A DIFFERENT
LENGTH THAN THE OTHER FOUR. IF PRESENT, YOU MUST REINSTALL THE SHORTER
LENGTH SCREW BACK IN THE SAME LOCATION OR DAMAGE WILL OCCUR..
There is a spacer on the screw on the front right corner that will fall out. Save and retain for later.
Figure 2-2 Screw Location and disassembly
Long screws
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
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2.9 Adjustments
The PAR200 is factory adjusted to accommodate the typical requirements for most aircraft configurations.
There are three adjustments under the top cover (see §2.8) that allow the installer to tailor the specific
functions.
Unswitched Input 3 Volume, adjust from 50% to 200% of input value. Turn counterclockwise to
increase gain.
TEL VOL- The received telephone volume. The unit is set at the factory for 75% of volume. Turn
Clockwise to increase the TEL receive volume.
LCD CST: adjusts display contrast to suit individual preferences and ambient light.
SPR
VOL
US3
VOL
J1
TEL
VOL
LCD
CST
Figure 2-3 – PAR200 Adjustments
2.10 Microphone gain reduction
For installations in very noisy aircraft, a reduction in the intercom microphone input gain may be desirable. The PAR200 has two DIP switches located on the main board that can switch the inputs to a lower
gain setting.
Remove the top cover (see §2.8 above), and locate the two DIP switches near the mounting rod at the rear
of the unit.
NOTE:
If top cover is removed
for ANY reason, you
MUST replace the cover
screws with the proper
length, otherwise damage
will result.
Shorter Screw may
be present
DIP Switches
(inside)
Unswitched 3
LCD Contrast
TEL VOL
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
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Figure 2-4 DIP switches
Change the settings as shown in the table below.
Switch Noisy Cockpit Normal Cockpit Switch Bank
Pilot Microphone
1 OFF ON
2 ON OFF
Copilot Microphone
3 OFF ON
J5
4 ON OFF
Passenger 1 Microphone
1 OFF ON
2 ON OFF
Passenger 2 Microphone
3 OFF ON
J4
4 ON OFF
Table 2-6 Microphone gain settings
Carefully reassemble the unit.
2.11 Reassembly
1. Using the nylon spacer removed in step 2, compress the spacer so it becomes ob-
long.
1
2
3
4
5
6
ON
OFF
ON
OFF
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
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Figure #3
a. Install one long screw through the top lid, near the front edge on the power
supply board side, and add then add the nylon spacer from § 2.8.
Figure #4
4. Place the lid back on the unit aligning holes.
5. Install qty. 3 more long thread screws into the lid.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
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2.12 Communications Antenna Installation Notes
2.12.1 Antenna Location
For best results while in Split Mode, we recommend that the one VHF communications antenna is located
on top of the aircraft while the other communications antenna is installed on the bottom. Any antenna
relocation must be accomplished in accordance with AC 43.13-2B, aircraft manufacturers’ recommendations, and other FAA-approved technical data.
WARNING
It is probable that radio interference will occur in the split mode when the frequencies of the two aircraft radios are adjacent, and/or the antennas are physically close together. PS Engineering makes
no expressed or implied warranties regarding the suitability of the PAR200 in Split Mode.
2.13 TY91(L) Adjustments
2.13.1.1 TY91(L) Sidetone Level
The radio transmit sidetone level is adjustable via the PAR200.
Push and hold the right hand knob until the volume screen appears. Then hold the
“MUTE” button on the left side until a sidetone level adjustment screen appears. Turn the
small knob to increase or decrease the sidetone level from the TY91(L).
2.13.1.2 Radio Frequency spacing, 25 kHz or 8.33 kHz
Push and hold the right hand knob until the volume screen appears. Then hold the
“MUTE” button on the left side until a sidetone level/channel spacing screen appears.
Turn the large knob to select either 25 kHz spacing or 8.33 kHz spacing.
1. Push/hold for >1 second.
2. After the volume screen appears, hold Mute until
SIDETONE screen appears
3. Adjust sidetone level
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
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2.13.1.3 Channel Assignment under 8.33 kHz spacing:
The following table provides an example of the 8.33 Channel assignments as displayed on the PAR200,
when in the 8.33 mode.
Bandwidth (kHz) Frequency Displayed
25 118.00000 118.000
8.33 118.00000 118.005
8.33 118.00833 118.010
8.33 118.01666 118.015
25 118.02500 118.025
8.33 118.02500 118.030
8.33 118.03333 118.035
8.33 118.04166 118.040
25 118.05000 118.050
8.33 118.05000 118.055
8.33 118.05833 118.060
8.33 118.06666 118.065
25 118.07500 118.075
8.33 118.07500 118.080
8.33 118.08333 118.085
8.33 118.09166 118.090
25 118.10000 118.100
8.33 118.10000 118.105
This format is continued through to 136.990
8.33 136.99166 136.990
1. Push/hold for >1 second.
2. After the volume screen appears, hold
mute until SIDETONE screen appears
3. Select either 25 kHz or 8.33 kHz with
large knob/underscore cursor
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
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2.14 PAR200 Pin assignments
J1 Function J2 Function
1 No Connect 1 Pilot Phones Lo
2 No Connect 2 Copilot Phones Lo
3 No Connect 3 Copilot Phones (L)
4 No Connect 4 Copilot Phones (R)
5 No Connect 5 Lights lo
6 No Connect 6 12/28 V Lights
7 No Connect 7 12/28 V Lights
8 No Connect 8 Aircraft Power (12 VDC)
9 Com 1 Audio 9 Aircraft Power(12 VDC)
10 Com 1 Audio Lo 10 Aircraft Ground
11 Com 1 Mic 11 Aircraft Ground
12 Com 1 Mic Key 12 Radio On Control
13 Com 2 Audio 13 Music 2 Mute Inhibit
14 Com 2 Audio Lo 14 Music 2 Mute Inhibit Lo
15 Com 2 Mic 15 Unswitched #4
16 No connect 16 Pilot Phones (L)
17 Nav 1 Audio 17 RS232 RXD
18 Nav 1 Audio Lo 18 No connect
19 Nav 2 Audio 19 No connect
20 Nav 2 Audio Lo 20 Swap
21 No Connect 21 Swap Low
22 Unswitched #3 Lo 22 Music 1 All Headsets
23 No Connect 23 Music 1 (L)
24 No Connect 24 Music 1 (R)
25 No Connect 25 Music 1 Lo
26 No Connect 26 Music 2 (L)
27 No Connect 27 Music 2 (R)
28 No Connect 28 Music 2 Lo
29 Unswitched #3 29 RS232 TX
30 Com 2 Mic Key 30 +12 VDC Radio In
31 Unswitched Audio 1 31 Pilot Phones (Rt)
32 Unswitched Lo 32 Copilot Mic Audio
33 Pilot Mic Audio 33 Copilot Mic PTT
34 Pilot Mic PTT 34 Copilot Mic Lo
35 Pilot Mic Lo 35 Pass 1 Mic Audio
36 No Connect 36 Pass 1 Mic Audio Lo
37 No Connect 37 Pass 2 Mic Audio
38 No Connect 38 Pass 2 Mic Audio Lo
39 No Connect 39 No Connect
40 Pass HP (L) 40 Unswitched #4 Lo
41 Pass HP (R) 41 No Connect
42 Pass HP Lo 42 +12 VDC Radio Lo
43 Unswitched 2 Lo 43 Speaker Ground
44 Unswitched 2 Audio 44 Speaker Output
PS Engineering Inc. ®
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2.15 Post Installation 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.
2.16 Unit Installation
To install the PAR200, 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. Internal damage will result.
2.17 Operational Checkout
NOTE
The IntelliVox® is designed for ambient noise levels of 80 dB or above. Therefore some clipping may occur 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 position, with the
audio panel power off. The Com audio will be present in one ear cup only.
4. Switch on the unit by pressing the volume (VOL) knob.
5. Check intercom operation.
6. Push the Com 1 Xmt select button (lower row).
7. Verify that both of the C1 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 microphone
PTT installation.
8. Verify proper transmit and receive operation from the copilot position, noting that the copilot PTT
switch allows proper transmission on the selected transceiver. Verify that the C1 Xmt button blinks
when transmitting.
9. Verify that pushing the C2 button causes the button to illuminate, and the Com 2 receiver to be heard.
Verify operation on Com 1 from the pilot position.
10. Repeat for Com 2
11. Press and hold the C1 Xmt button. While holding the Com 1 button, press the Com 2 Xmt button.
This places the unit in “Split Mode;” Verify that the pilot can transmit and receive on Com 1, while
the copilot transmits and receives on Com 2.
12. Verify proper operation of all receiver sources by selecting them using the appropriate means. The N1
and N2 indicators illuminate to show which navigation audio source is in use.
13. Verify that the appropriate LED in the lower button row blinks when either push to talk is keyed.
14. Verify proper Intercom system operation in the ALL, ISO and CREW modes (see Table 3-1).
15. Verify that the audio selector panel system does not adversely affect any other aircraft system by sys-
tematically switching the unit on and off, while monitoring the other avionics and electrical equipment on the aircraft.
PS Engineering Inc. ®
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2.17.1 TY91 Checkout
2.17.1.1 Ground check:
1. Connect an in-line type watt meter and verify that the antenna VSWR does not exceed 2:1 across
the frequency band from 118.000 to 137.000 MHz.
2. Select the frequency of a local communications facility and verify that the receiver output is clear
and intelligible.
3. Establish communication with a local facility and verify that the transmission is reliable, and
quality is clear and intelligible. Verify that sidetone is present for the appropriate crewmembers
and passengers (depending on intercom mode).
4. If appropriate, verify selection of 8.33 kHz channel selection. Refer to §3.6.1.2
2.17.1.2 Flight check:
1. Maintain at least 1500 feet AGL, and establish reliable contact with a facility at least 25 nm
away.
2. Contact a facility within five nm and verify reliable contact.
3. Open the radio squelch by pushing the right knob for more than 2 seconds (or until the volume
and squelch bars appear), and listen for any unusual electrical noise that might reduce the communications receiver sensitivity.
4. Verify operation at both high and low end of the frequency band (118.000 to 136.975 MHz) if
possible.
2.17.2 TELEPHONE Checkout
On the ground (not flying), activate the TELEPHONE mode using the Bluetooth device. 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
place any person heard by the pilot on the intercom, also heard on the telephone.
2.18 Final Inspection
Verify that the wiring is bundled away from all controls and no part of the installation interferes with aircraft 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 accordance 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.
Return completed warranty registration application to PS Engineering, or complete online at www.psengineering.com.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 3-1 Rev. 4, Dec. 2013
Section III OPERATION
3.1 SCOPE
This section provides detailed operating instructions for the PS Engineering PAR200, Audio Selector
Panel/Intercom/VHF Communication Control Systems. Please read it carefully before using the equipment
so that you can take full advantage of its capabilities.
The following is divided into sections covering the basic operating areas of the PAR200 systems. They are
Communications Transceiver Selection, Audio Selector, Intercom, VHF COM, music, telephone, and display.
Figure 3-1 PAR200 Operating controls
3.2 Power and Fail Safe (1)
Unit power is turned on and off by pushing the volume (left) 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 portion will revert to fail-safe mode.
The power switch controls all audio selector panel functions and the intercom. All pushbutton selections
and menu modes (except Bluetooth telephone association) will be remembered and return to the last state
when turned on.
3.2.1 TY91(L) Radio power (as COM 1 only)
The power supply for the TY91 communication transceiver is separate from the audio panel power and
control. When the TY91 is installed as COM 1, or as a stand-alone COM, it can be controlled separately
in the event of a problem in the audio panel portion, or audio panel power.
If the audio panel is turned off by the left knob (or the audio panel breaker is opened), the display will
indicate “Push radio knob within 6 (countdown) seconds to keep radio on” If the knob is not pushed, the
com radio will also turn off, but if the data knob is pushed within, the radio display, volume and frequency
control will remain active.
3.2.1.1 Radio Power, TY91(L) as COM 2
If the Trig TY91 is configured as Com 2, it will turn off when the audio panel is off, and the pilot will be
connected directly to Com 1.
3.2.2 ICS and Music Volume Controls (1)
The inner knob (ICS) controls the volume of the intercom audio. It does not affect the radio, telephone, or
music volume.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 3-2 Rev. 4, Dec. 2013
The outer knob (♫) controls the volume of the Music 1 input (and Bluetooth music). It has no effect on the
radio, intercom, telephone, or Music 2 input for the passengers.
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.
3.3 Communications Transmit (XMT) Selection (2)
The two buttons C1 and C2 (# 2) in the XMT section control which communications radio 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. A green LED above the button illuminates
to indicate that the audio is selected.
The PAR200-Series has an automatic com receiver 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 transmitter by pressing the COM 2 transmitter selector pushbutton. See that the associated Com 2 receive pushbutton indicator light that is located immediately above the Com 2 transmitter
pushbutton turns green. This guarantees that the pilot will always hear the audio from the transceiver selected for transmit.
The PAR200 “remembers” the receiver selection, so that when switching transmitters from COM 1 to COM
2, if COM 2 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.
When switching from COM 1 to COM 2 while Com 2 was not previously selected, COM 1 audio will be
switched off. In essence, switching the mic selector will not override prior selection of COM receiver audio.
3.3.1.1 Split Mode
The split mode can be activated at any time by pressing the C1 and C2 XMT buttons at the same time.
This places the pilot on COM 1 and the Copilot on COM 2.
Pilot on COM 2 and Copilot on COM 1 is not possible.
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 in the Split mode, particularly on adjacent frequencies. PS
Engineering makes no warranty about the suitability of Split Mode in all aircraft conditions.
3.3.1.2 Swap Mode (Switch from Com 1 to Com 2 remotely)
With a yoke mounted, normally open momentary switch, the pilot can change from the current Com
transceiver to the other by depressing this switch. To cancel "Swap Mode," the pilot may either press the
yoke mounted switch again, or select a different Com with the XMT buttons.
3.4 COM Audio Selector (3)
Communication audio from the other radio, not selected for transmit, can be heard by pressing the associated RCV button. You will always hear the audio from the selected transceiver.
In SPLIT mode, only the pilot will hear selected navigation audio (N1 & N2).
3.5 Navaid Audio selection (4)
VHF Navigation receiver audio is selected through two momentary, push-button, backlit switches.
The users can identify which receivers are selected by noting which green LEDs are lit above the button.
Navigation aid audio push buttons are labeled N1 & N2.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 3-3 Rev. 4, Dec. 2013
Other audio sources such as Marker Beacon, ADF or DME audio if installed are available if interfaced
through an unswitched input.
3.6 VHF Transceiver control (5)
The right side of the PAR200 is dedicated to control of the VHF communications transceiver. Frequency
selection is always directed to the STANDBY side of the display.
To change the radio volume, defeat the automatic radio squelch, or turn the cockpit speaker on or off,
push and hold the frequency-select knob for one second, until the display changes to the menu.
3.6.1 Frequency Selection (6)
Turn the large (outer) knob to change the frequency whole MHz, and the smaller, inner knob to change
the .100 MHz frequency.
Push the small knob momentarily to transfer standby frequency to the active frequency.
Figure 3-2 Frequency Control
3.6.1.1 Frequency Memory Storage
The PAR200 will store five frequencies for future recall.
To store frequencies:
1. Enter the desired frequency it the STBY frequency.
2. Press and hold the N1 button until the display changes FREQ SELECT, to show only the
STBY side.
3. Momentarily push the small (kHz) knob to display the list of locations.
4. Turn the small knob to select the location (1 through 5).
5. Either momentarily push the small knob again, or do nothing; the display will revert and the fre-
quency is stored in that location.
To recall stored frequencies:
1. Press and Hold the N2 button until the display changes to FREQ RECALL.
2. Using the small knob, select the desired location in MEM field.
3. Push the small knob to accept this as STBY frequency. NOTE: If you do not push the small knob
the frequency will not change to the stored, and reverts to STBY.
Push momentarily
to transfer.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 3-4 Rev. 4, Dec. 2013
3.6.2 Tuning 8.33 kHz channel Spacing
Push and hold the right hand knob until the volume screen appears. Then hold the
“MUTE” button on the left side until a sidetone level/channel spacing screen appears.
Turn the large knob to select either 25 kHz spacing or 8.33 kHz spacing.
3.6.2.1 Channel Assignment under 8.33 kHz spacing:
The following table provides an example of the 8.33 Channel assignments as displayed on the PAR200,
when in the 8.33 mode.
Bandwidth (kHz) Frequency Displayed
25 118.00000 118.000
8.33 118.00000 118.005
8.33 118.00833 118.010
8.33 118.01666 118.015
25 118.02500 118.025
8.33 118.02500 118.030
8.33 118.03333 118.035
8.33 118.04166 118.040
25 118.05000 118.050
8.33 118.05000 118.055
8.33 118.05833 118.060
8.33 118.06666 118.065
25 118.07500 118.075
8.33 118.07500 118.080
8.33 118.08333 118.085
8.33 118.09166 118.090
N1
1. Push/hold for >1 second.
2. After the volume screen appears up, hold
mute until SIDETONE screen appears
3. Select either 25 kHz or 8.33 kHz with
large knob/underscore cursor
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 3-5 Rev. 4, Dec. 2013
Bandwidth (kHz) Frequency Displayed
25 118.10000 118.100
8.33 118.10000 118.105
This format is continued through to 136.990
8.33 136.99166 136.990
3.6.3 Radio Volume (7)
Push and hold the small frequency-select knob for one second, until the display changes to the menu.
Turn the large knob to adjust the aircraft radio volume.
You can push the knob again to return to the frequency display, or the display will revert automatically
after five seconds without any activity.
3.6.4 Radio Squelch
To defeat the automatic radio squelch, push and hold the frequency knob until the display changes to
ASQ OFF, which defeats the squelch and you will hear any weak signals.
Press the right hand side rotary selector knob again until you get the ASQ ON, to restore the Automatic
Squelch.
Figure 3-3 Radio Squelch on/off
3.6.5 Cockpit Speaker
When the cockpit speaker is turned on, any receiver audio selected will be heard in the speaker. Any
unswitched audio will always be present in the cockpit speaker regardless of the speaker on/off selection.
To activate the cockpit speaker, push and hold the frequency knob until the display changes. Push the
small momentarily to move the cursor under the SPR OFF display. Turn the larger knob clockwise unto
the SPR is ON.
Push/hold for >1
sec.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
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Figure 3-4 Cockpit Speaker Control
3.6.6 Monitor Mode (when PAR200 is COM 1 or stand alone only)
If the TY91 is interface as a stand alone COM or as COM 1, the radio’s standby frequency monitor can be
used. To activate the monitor mode, press and hold the C2 RCV button until “MON” appears in the display.
When MON is active, the receiver is tuned to the Standby frequency and passes received audio on that
channel. When the Active frequency receives a signal, the signal from the active frequency is automatically provided to the audio.
Both active and standby frequencies are monitored at the same time for a signal. A signal can be received
on either the active or the standby frequency.
While receiving a signal on the active frequency - the standby channel is NOT monitored.
While receiving a signal on the standby frequency - the active channel is periodically monitored. If a sig-
nal is found on the active frequency the TY91 will revert to the active frequency. After a signal has been
received, the TY91 will return to monitoring both frequencies.
The standby monitoring frequency sends an audible “ticking” to make you aware which is the active &
standby. It will be important to remember which frequency is active and which is standby, to avoid answering a transmission on the standby frequency by transmitting a response on the active frequency.
3.7 Intercom Operation (8)
3.7.1 IntelliVox® VOX-Squelch
No manual adjustment of the IntelliVox® squelch control is possible. Through individual signal processors, the ambient noise appearing in all four microphones is constantly being sampled. Non-voice signals
are blocked. When someone speaks, only their microphone circuit opens, placing their voice on the intercom. The intercom can be configured for high noise environment by internal switching. See § 2.10 for
more information.
The system is designed to block continuous tones; therefore people humming or whistling in monotone
may be blocked after a few moments.
Push/hold for >1
sec.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
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200-228-0000 Page 3-7 Rev. 4, Dec. 2013
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.
Table 3-1 Mic Muff ™ Part Numbers
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
Lightspeed All 90015
Peltor 7003
7004
90010
90015
Pilot 11-20 & 11-90 90015
Sennheiser 90015
Telex Airman 750, Echelon
AIR3000
90015
90010
3.7.2 Mono headsets in Stereo Installation
The pilot and copilot positions work with stereo or mono headsets. All passenger headsets are connected
in parallel. Therefore, if a monaural headset is plugged in to a PAR200 Stereo installation, one channel
will be shorted. Although no damage to the unit will occur, passengers with stereo headsets will only hear
in one ear, unless they switch to the “MONO” mode on their headset.
3.7.3 Intercom Modes (8)
The “ICS” pushbutton switch on the left side of the panel provides the selection
of the three intercom modes.
This button cycles through the intercom modes, from left to right, then right to
left as: ISO, ALL CRW and CRW, ALL, ISO. An LED behind the text shows
which mode is currently active.
ISO: The pilot is isolated from the intercom and is connected only to the aircraft
radio system. He will hear the aircraft radio reception (and sidetone during radio transmissions). Copilot
will hear passengers’ intercom and music, while passengers will hear copilot intercom and music. Neither
will hear aircraft radio receptions or pilot transmissions.
When the audio panel is put into the “Split Mode” (pilot on COM 1, copilot on COM 2), the intercom
automatically enters the ISO mode to prevent confusion with two intercom conversations. The intercom
can be changed to the CRW or ALL mode if desired.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
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200-228-0000 Page 3-8 Rev. 4, Dec. 2013
ALL: All parties will hear the aircraft radio and intercom. Crew and passengers will hear selected music.
During any radio or intercom communications, the music volume automatically decreases. The music volume increases gradually back to the original level after communications have been completed.
CREW: Pilot and copilot are connected on one intercom channel and have exclusive access to the aircraft
radios. They may also listen to Music 1. Passengers can continue to communicate with themselves without
interrupting the Crew and may listen to music as configured.
3.8 Telephone Mode
3.8.1 Bluetooth Telephone Connection
Before the PAR200 can be used in TELEPHONE mode with a wireless Bluetooth connection, the unit
must be associated with a specific phone.
Activate the “seek device” function on the cell phone, and then enter the access code “0000” when the
phone detects the “PAR200” on the list of available devices.
When the PAR200 is paired with the Bluetooth device, the letters “BT” appears in the display.
This process will be necessary for any phone to be used, and only one cell phone can be associated with
the audio panel at a time. If the additional phones are associated with the PAR200 at the same time, only
the first phone will transfer audio to the panel.
If the Bluetooth connection fails to reconnect, or becomes unreliable for any reason, you can reset all
connections by turning off the PAR200, holding the N1 and N2 buttons down, and turning the unit back
on. This clears out all paired devices.
PS Engineering recommends this clearing process if you’re having difficulties interfacing the PAR200
audio panel to your Bluetooth phone or device.
3.8.2 Telephone (TEL) Operation
When the Bluetooth-enabled phone receives an incoming call, the PAR200 will play a ring tone. Answer
the call from your telephone handset. The PAR200 exits the telephone mode automatically when the
cellular phone hangs up.
In TELEPHONE mode, the pilot microphone and headphones are connected to the cell phone. The pilot
PTT will switch the pilot mic to the selected com transceiver, and allow continued aircraft
communications to continue.
The copilot will also be able to transmit on the other selected radio with his PTT as well.
Entering the TEL mode connects the telephone to the users as follows:
In ALL intercom mode, all crew and passengers will be heard on the phone when they speak. Com and
other selected radio audio is also heard in the headsets. If the pilot or copilot pushes the radio PTT, their
microphone will be transferred to the selected Com radio. The telephone party will not hear ATC communications, and vice versa.
In CREW mode, only the pilot and copilot are connected to the telephone. Passengers will not hear the
telephone. The pilot and copilot will also have transmit capability on the other selected transceiver.
In ISO intercom mode, when the PAR200 is in the TEL mode, the pilot position is in the "Phone Booth."
Only the pilot will hear the telephone, and only he will be heard. He will also have access to Com 1 or 2,
and will transmit on that radio using the PTT. All selected audio is provided to the pilot.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 3-9 Rev. 4, Dec. 2013
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.
WARNING
Federal Communications Commission regulation 47 CFR 22.925 prohibits the use of 800MHz Cellular
handsets in any aircraft that is airborne. Violation of this rule could result in suspension of service and/or
a fine.
3.9 Music Inputs
The PAR200 has two independent music inputs at the rear connector. The PAR200 also has the ability to
receive streaming music from a Bluetooth-enabled device. If both inputs are active, both will be heard in
the headset at the same time, there is not any prioritization.
Music #1 will be normally heard by the pilot and copilot positions ONLY. Music 2 is ONLY available to
the two passenger positions.
Music #1 can also be distributed to the passengers using the rear connector control (See § 2.7.1.1). The
streamed music in the PAR200 is also Music 1.
Music Distribution
Mode
Standard Music
Distribution
Music 1
All Headsets
Music Source
ICS Mode
All Crew ISO All Crew ISO
Music 1 & (Blue-
tooth) Input
Crew Crew Copilot Crew
& Pass.
Crew &
Pass.
Copilot&
Pass.
Music 2 Input Pass. Pass. Pass.
NONE NONE NONE
Figure 3-5 Music distribution
NOTE:
All music devices should be turned off for take off, landing, or any critical phase of flight. FAA Regulation 14 CFR
91.21 restricts the use of portable electronic devices.
§91.21 “(a) Except as provided in paragraph (b) of this section, no person may operate, nor may any operator 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
3.10 Music Muting (9)
There are two SoftMute™ muting circuits. The front panel "Mute" button has four modes, and
controls the Mute function for music 1. Music 2 muting is controlled by an external switch, and
has two modes, mute on and mute off.
The SoftMute™ circuit will cut the music out whenever there is conversation on the radio, the
intercom, or both, depending on the “Mute” mode selected. When that conversation stops, the
music returns to the previous level comfortably, over a second or so.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Page 3-10 Rev. 4, Dec. 2013
The Music 1 mute mode functions are controlled through sequential pushes of the Mute button, and include LED indication of the mode selected.
MUTE ON - music will mute with either intercom or radio – MUTE ON button is lit.
RADIO MUTE – Intercom will not mute music, radio will mute music. RAD LED indicator is on
INTERCOM MUTE - Radio will not mute music, intercom will mute music - MUTE ICS LED is ON.
MUTE OFF - “Karaoke” mode - music will not mute except during outgoing transmissions.- All Indi-
cators off.
♫ Music
Intercom Radio LED INDICATOR
Mute ON Muted Muted ON
Mute OFF ♫ ♫ None
Radio Mute ♫ Muted RAD
ICS Mute Muted ♫ ICS
The passenger’s intercom also has a SoftMute™ circuit. If the passengers hear the radio, or talk on the
intercom, the music will mute. If the audio panel is in CREW mode, then the radio reception will not affect the passenger music.
3.10.1 Music 2 Mute Control
Passengers also have a Karaoke Mode. If the passengers are listening to the music 2 input, their Karaoke
Mode is activated by an external switch. See § 2.7.2.1.
If the passengers are listening to the Music 1 input, their Karaoke Mode is controlled by the front panel
“Mute” button.
3.10.2 Liquid Crystal Display Control
The contrast on the LCD display has been factory set, but you can tweak by using a service adjustment
located inside of the unit. See § 2.10 for adjustment information.
PS Engineering Inc. ®
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200-228-0000 Page 4-1 Rev. 4, Dec. 2013
Section IV – Warranty and Service
4.1 Warranty
In order for the factory warranty to be valid, the installations must be accomplished under the supervision of an authorized PS Engineering dealer. If the unit is being installed by a non-certified individual in an experimental aircraft, a PS Engineering authorized dealer, or 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 two (2) years from the date of sale. During the two-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.
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 unreasonable 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 exclusion
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 two-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 Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Appendix A Rev. 4, Dec. 2013
Appendix A – External PTT Hook Up
Part of the installation includes the installation of PTT (Push To Talk) switches that allow the use of your
aircraft radio for communications transmissions.
There are three possible configurations; you must select the case that best fits your installation.
NOTE: Only the person who presses their PTT switch will be heard over the radio.
CASE I
The PTT is built into the pilot and copilot yokes
Simply install the plugs from the headset into the aircraft headphone jacks. Then use the yoke mounted
PTT to transmit. No other action is required.
CASE II
Built in PTT only on the pilot side only
This configuration requires a modified external PTT switch plugged into the copilot's mic jack. (See Details Below) When the copilot's PTT is depressed, this activates an internal relay that switches the mic
audio to the aircraft radio from the pilot to the copilot.
Case III
No built in PTT switch at all.
Two built-in PTT must be installed, or two external, modified PTT switches will be required for both the
pilot and copilot. Modifications to the PTT are required. (See details below)
Push To Talk Modifications
When received from the manufacturer, an after-market PTT switch opens the mic audio path to the "ring"
connection of the PTT mic plug until the button is pressed. When the PTT is between the intercom and
the headset, the intercom function will not work unless the PTT switch is depressed. A simple modification can be performed to allow proper intercom operation. NOTE: This mod does not alter normal operation.
Below are some examples of typical modifications. Contact the PTT manufacturer for more details if necessary.
Procedures for David Clark PTT
Unscrew the round black plastic cover from the jack.
Connect the joined black wires to the red wire.
Replace the round black plastic cover.
Procedures for Telex PT-200
Unscrew the round black plastic cover from the jack.
Cut the red wire in the middle of the wire.
Strip both ends of the insulation.
Solder the two ends to the ground lug to the PTT jack.
Replace the round black plastic cover.
Procedures for Telex PT-300
Unscrew the round black plastic cover from the plug jack.
Remove the heat shrink material from the joined black wires.
Solder these two wires to the lug that has a white wire already soldered to it.
Replace the round black plastic cover
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Appendix B Rev. 4, Dec. 2013
Appendix B – PAR200 Installation Drawings
J2 J1
Viewed from Back
15
30
44
1
16
31
15
30
44
1
16
31
Ground Lug
Ground Lug
475-44 0-0001 (x2)
Back plate assy
475-00 9-0001
ground lug (x2)
475-44 0-0001 (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
Tray and cutout dimensions
Caut i on: Ap pl y ste a dy p r e s sur e to t h e be z el wh i l e scr ewi n g t h e un it i n t o t h e tr a y t o
en s ur e e v e n sea t i n g of t h e u n i t a n d c o nn ect or s .
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Appendix B Rev. 4, Dec. 2013
6.1 TY91 Radio Installation Drawings
Not to Scale. Dimensions in millimeters, (inches)
(6.30)
(
1.89)
(
3.54
)
(
.85)
(
5.44
)
(Ø.187
(
2.52
) (
1.25)
(
1.18
)
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
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200-228-0000 Appendix D June 2013
Appendix C – J1 Connector Interconnect
Figure 7-1 J1 connections, TY91(L)-05 as COM 2
Com 1 Audio Hi
Com 1 Mic Key
Com 1 Audio Lo
COM 1
Communications
Transc eiver
COM 2
Communications
Transc eiver
(TY91 -05 )
Nav 1 Audio Hi
Nav 1 Audio Lo
VHF Nav 1
Nav 2 Audio Hi
Nav 2 Audio Lo
VHF Nav 2
Unswitched Input #1 Hi
Unswitched Audio Lo
Unswitched Audio #1
Unswitched Input #2 Hi
Unswitched Audio Lo
Unswitched Audio #2
Pilot Mic Audio Hi
Pilot Mic PTT
Pilot Mic Lo
9
10
11
12
Com 1 Mic Audio Hi
Com 2 Audio Hi
Com 2 Mic Key
Com 2 Audio Lo
13
14
15
30
Com 2 Mic Audio Hi
17
18
19
20
17
29
31
32
44
43
33
34
35
Notes:
1. All shields should be grounded at audio panel only.
Other end remains f loating.
2. PAR20 0 Power, and Ground wires shall be #22 gage wire
TY91 Power and Ground shall be 20 AW G
Lighting and TY91interface # 22 AW G, other wires minimum #24 AWG
3. All mic and headphone jacks must be isolated fro m ground.
4. All shielded wires must be MIL 22750 or 275 00.
5. Unswitched inputs are a lways presented to
crew headphones, rega rdless of SPR switch or PTT .
Unswitched #3 is adjustable
6. TY91 interfa ced as COM 2.
All connections for T Y91(L) R adio shown for c onvenience .
Pilot PTT
PAR200 Connector, J1 (Sub-D 44-pin, male on tray)
Unswitched Input #3 Hi
Unswitched Audio Lo
Unswitched Audio #3
29
See Note 5
Pass. Phones (R)
Pass Phones (L)
Pass. Phones Lo
Pass. 1 PhonesJack
Pass. 2 Phones Jack
23
41
40
42
RS232 TX
RS232 RX
2
1
23
15
6
5
J2
See Note 2, 6
11-33 VDC
12
30
42
Radio On
Radio Power
Radio Ground
13
12
9
19
24
25
Airframe Ground
5A
Figure 7-2 PAR200 Using TY91(L) as COM1 or stand alone
Com 1 Audio Hi
Com 1 Mic Key
Com 1 Audio Lo
COM 2
Communications
Transceiver
COM 1
Communications
Transceiver
(TY91)
9
10
11
12
Com 1 Mic Audio Hi
Com 2 Audio Hi
Com 2 Mic Key
Com 2 Audio Lo
13
14
15
30
Com 2 Mic Audio Hi
17
29
12
30
42
RS232 TX
RS232 RX
2
1
23
15
6
5
Radio On
Radio Power
Radio Ground
13
12
9
19
24
25
J2
See Note 2, 6
11-33 VDC
J1
5A
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Appendix D Rev. 4, Dec. 2013
Appendix D – J2 Connector Interconnect
20
31
16
1
35
36
24
23
25
4
3
2
Copilot Phones (R)
Copilot Phones (L)
Copilot Phones Lo
Pass. 1 Mic Jack
Pass. Mic Lo
Pass. Mic Hi
37
38
Pass. 2 Mic Jack
Pass. Mic Lo
Pass. Mic Hi
32
33
34
Copilot Mic Audio
Copilot PTT
Copilot Mic Lo
Copilot PTT
Copilot Mic Jack
14
13
Ent. #2 Mute
PAR200 J2 CONNECTOR
(Sub-D 44-pin male on tray)
Pass Music
27
26
28
Music #2 Audio (R)
Music #2 Audio (L)
Music #2 Audio Lo
Notes:
Music #1 Audio (R)
Music #1 Audio (L)
Music #1 Audio Lo
Crew Music
7
6
5
Copilot PhonesJack
Pilot Phones (R)
Pilot Phones (L)
Pilot Phones Lo
Pilot PhonesJack
Backlighting
See Sect. 2.4.2
8
9
Ground Lug
Airframe Ground
11-33 VDC
29
17
44
43
Swap
Switch
Swap
10
11
1. All Power, and Ground wires must be #22 gage wire
Lighting #22 AWG, other wires minimum #24 AWG.
2. All shields should be grounded at audio panel only,
other end remains floating
3. Pins 8 and 9 connected through a 3 A breaker to aircraft power
for the audio panel.
Breakers must be pull-type.
4. All shielded wires must be MIL 22750 or 27500.
5. For music distribution information, see Section 2.5.1.
6. Use care when connecting music signal and ground inputs.
Failure to properly interface music can result in
added noise. Do not connect Music # 1 or Music #2 to ground. Theseare differential
audio inputs. Refer to 2.4.1.1.
7. Connecting J2-13 to ground (or J2-13 to J2-14) will prevent the Music 2 input from
muting with intercom or radio.
8. Connecting J2-22 to ground (or J2-22 to J2-14) places Muisc #1 in all headsets.
9. Pin 16 (pilot Phones Left) has COM 1 and unswitched audio in failsafe,
and must be connected to the tip contact, and used if a mono installation.
Unswitched Input #4 Hi
Unswitched Audio Lo
Unswitched Audio #4
15
40
7
6
5
28 V Lights Hi
28-Volt lights lo
7
6
5
14 V Lights Hi
14-Volt lights lo
See Note 7
3A Breaker
See Note 3
Backlighting
See Sect. 2.4.2
RS232 TXD
RS232 RXD
Communications
Transceiver
(TY91 -05)
5
6
13
12
9
19
12
30
42
Radio On
Radio Power
Radio Ground
Speaker Hi
Speaker Lo
22
Music 1 All Headsets
See Note 8
See Note 6
(R) = Right Channel Audio
(L) = Left Channel Audio
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Appendix E Rev. 4, Dec. 2013
Appendix E – Instructions for FAA Form 337 and continuing airworthiness
9.1 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 PAR200, you may use the following text as a guide.
Installed audio selector and 6-place intercom, PS Engineering PAR200, part number 050-228-(XXXX) in (
location ) at station . Installed per AC43.13-2B, Chapter 2, paragraph 23 (Instrument Panel Mounting). Installed per PS Engineering Installation Operators Manual p/n 200-228-(XXXX), revision (), dated (
).
These units are FAA-Approved under TSO C139 for audio amplifiers, and a partial TSO C169a for communications transceivers, and meets appropriate environmental qualifications outlined in RTCA DO-160G as appropriate for this aircraft.
Interface to existing aircraft radios in accordance with installation manual and in compliance with practices
listed in AC43.13-2B, 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 PAR200 added.
Aircraft equipment list, weights and balance amended. Compass compensation checked. A copy of the operation instructions, contained in PS Engineering document 202-228-( ), revision ( ), dated ( ), is placed in the
aircraft records. All work accomplished listed on Work Order .
9.2 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 VHF communications con-
troller 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 informa-
tion
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 Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Appendix E Rev. 4, Dec. 2013
9.3 ICA for Trig TY91/92 Radio:
Other than for periodic functional checks required by the regulations, the TY91/TY92 VHF radio has
been designed and manufactured to allow “on condition maintenance”. This means that there are no periodic service requirements necessary to maintain continued airworthiness, and no maintenance is required
until the equipment does not properly perform its intended function. When service is required, a complete
performance test should be accomplished following any repair action. Repairs should only be carried out
in accordance with Trig Avionics Limited service procedures.
PS Engineering Inc. ®
PAR200 Audio Selector Panel, COM radio Controller and Intercom System
Installation and Operator’s Manual
200-228-0000 Appendix F Rev. 4, Dec. 2013
Appendix F – RTCA DO160G Environmental Qualification Form
Audio Selector Panel/Intercom/Communications Transceiver Controller
Part Number: 050-228-( )
FAA TSO Number: C139, C169a
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 & C1
-55° C Survival, -20°C Low Oper
ating (A1)
-40 Low Short Term Operating
+85°C Survival, +70°C High Short Time Operating + 55
˚C
High Operating
Not Applicable, no cooling required
35,000’ unpressurized (C1)
Not Applicable
Not Applicable
Temperature variation 5.2 Equipment tested to Category B (5˚/Minute)
Humidity 6.0 Equipment tested to Category A
Shock 7.0 Equipment tested Standard B
Operational 7.2 Equipment tested to Category E
Crash Safety 7.3 Equipment tested to Category E
Vibration 8.0 Equipment tested to Category S & R
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(X)(X)
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 TT
Radio Frequency Emission 21.0 Equipment tested to Category M
Lightning Induced Transient
Susceptibility
22.0 Equipment tested to Category XXA2E2
Lightning Direct Effects 23.0 Category X, not tested
Icing 24.0 Category X, not tested
ESD 25.0 Category X, not tested
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