9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
P
P
A
A
R
R
2
2
0
0
0
0
WWiitthh TTrriigg AAvviioonniiccss TTYY9911((LL))
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
200-228-0000 Page 2-5 Rev. 4, Dec. 2013
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
200-228-0000 Page 2-6 Rev. 4, Dec. 2013
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.
Loading...