Any reproduction or retransmittal of this publication, or any portion thereof, without the expressed written permission of PS Engi- neering, 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.
Table of Contents SECTION I - GENERAL INFORMATION..............1-1 INTRODUCTION......................1-1 SCOPE ..........................1-1 EQUIPMENT DESCRIPTION ..................1-1 APPROVAL BASIS -...................... 1-1 SPECIFICATIONS......................1-2 EQUIPMENT SUPPLIED ..................... 1-2 EQUIPMENT REQUIRED BUT NOT SUPPLIED ............ 1-3 LICENSE REQUIREMENTS ..................1-3 SECTION II - INSTALLATION..................2-1 GENERAL INFORMATION ..................
Section I - GENERAL INFORMATION INTRODUCTION The PA50 is an accessory device designed to accept four audio inputs and present a single summed output. This accommodates the proliferation of unswitched priority audio signals in aviation, and the limited avail- ability of unswitched audio inputs to the aircraft system.
PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual SPECIFICATIONS Specifications ENVIRONMENTAL CONDITIONS: Temperature Range: Operating: -15º C to 55º C Storage: -40º C to 85º C Altitude: Up to 50,000 feet in an unpressurized area of the aircraft.
PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual PA50 Installation Kit: Part Number Description Quantity 425-025-0006 DB25 Female 200-150-0100 Operator's and Installation Manual EQUIPMENT REQUIRED BUT NOT SUPPLIED Circuit Breaker: 1 ea. 1 amp. Input signal source, (in ex TAWS alert signal)
Section 1.6. 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 ac- cessories shows any sign of external shipping damage, contact PS Engineering to arrange for a replace- ment.
Connector Assembly The rear of the PA50 contains a male DB25 connector. In the parts kit is a female shell with qty. 12 crimp type pins. The appropriate crimper is Paladin PA1440. Ensure that proper strain relief and chafing precau- tions are made during wiring and installation.
2.6.1 Operational Checkout Apply power to the aircraft and avionics. Verify that the audio signal connected to the PA50 are provided to the aircraft’s audio system. Verify that the unit is fully functional and in condition for safe operation. Final Inspection Verify that the wiring is bundled away from all controls and no part of the installation interferes with air- craft control operation.
PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual Section III OPERATION GENERAL INFORMATION There are no external operational controls on the PA50, only one internal volume control that affects all four audio inputs. 200-150-0100 Page 3-1 October 2006...
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.
PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual PA50 Sub-D DB-25 Male Power In 11-33 VDC Ground Audio Panel Audio Output Hi Unsw. Input Aux 1 Aux 1 Input Hi Audio Output Aux 2 Aux 2 Input Hi...
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