PS Engineering PAC24 Installation And Operation Manual
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PS Engineering PAC24 Installation And Operation Manual

Audio control panel and intercom system
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Audio Control Panel and Intercom System
JAA-Approved JTSO C50c
In certified aircraft, warranty is not valid unless this product is installed by an
Any reproduction or retransmittal of this publication, or any portion thereof, without the expressed written permission of PS Engineer-
ing, 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 info@ps-engineering.com.
9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
PAC24
Installation
Operation Manual
FAA-Approved TSO C50c
Document P/N 200-240-0010
Revision 24, Dec. 2013
Authorized PS Engineering dealer.
PS Engineering, Inc. 2013 ©
Copyright Notice
and

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Summary of Contents for PS Engineering PAC24

  • Page 1 Any reproduction or retransmittal of this publication, or any portion thereof, without the expressed written permission of PS Engineer- ing, 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 info@ps-engineering.com.

  • Page 2: Table Of Contents

    UTPUT LAYBACK BUTTON NSTALLATION PTION UNITS ONLY ............................2-12 DJUSTMENTS ................... 2-13 OMMUNICATIONS NTENNA NSTALLATION OTES ......................2-13 ELECOMMUNICATIONS INTERFACE PAC24 P .......................... 2-15 IN ASSIGNMENTS ........................ 2-16 NSTALLATION HECKOUT 2.10 ..........................2-16 NSTALLATION 2.10.1 ........................2-16 PERATIONAL HECKOUT 2.11 , -0200 -0400) ..........
  • Page 3 PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual 3.5.2 “C ” ............................3-3 LICK ..............................3-3 PLIT 3.6.1 ........................3-3 PLIT INGLE PANEL 3.6.2 ........................3-4 PLIT ANEL 3.6.3 (-04XX)....................3-4 PLIT BSERVER ANEL ..........................

  • Page 4: Section I General Information

    Special Mission Application Units, Vertical 050-240-0503 Where the functions are identical to all units, it will be referred to herein as a PAC24. Otherwise, the ap- plicable units will be specified. NOTE: Observer configuration units cannot be mixed with Standard configuration units.

  • Page 5: Approval Basis

    Push button switches select the communication transceivers in use for the pilot and copilot position, and allow radio transmission. In "Split Mode" the PAC24 has the ability to allow the pilot and copilot to oper- ate different transceivers independently. The Com 5/TEL mode (selected at installation) allows the pilot to use the audio panel for duplex operation, such as with aviation-specific cellular telephones.

  • Page 6: Equipment Supplied

    Description Part Number PAC24 PAC24 Audio Control Panel with intercom 050-240-0100 PAC24 Option 1 PAC24 Audio Control Panel with intercom and digital recorder, 050-240-0200 PAC24 Observer PAC24 Audio Control Panel for Observer installation 050-240-0400 PAC24 Observer Option 1 PAC24 Audio Control Panel for Observer with recorder...

  • Page 7: Equipment Required But Not Supplied

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual PAC24 Installation Kit: 250-240-0001 Description Quantity Part Number PAC24 installation rack assembly 475-240-0040 Molex Connector Shell w/key, 50 pin, key 17/18 120-425-5002 Gold Plated Crimp Pins...

  • Page 8: Section Ii - Installation

    2.3.1 Cooling Requirements Forced air cooling of the PAC24 is not required. However the unit should be kept away from heat produc- ing sources (i.e. defrost or heater ducts, dropping resistors, heat producing avionics) without adequate cooling air provided. Outside, ram air cooling of the unit is not permitted, and may result in damage.
  • Page 9 PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual To access the DIP switches, remove the top cover by removing the two (2) screws at the sides holding the cover in place. DIP Switches Figure 2-1 DIP Switch locations...
  • Page 10 PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual PAC24 Rear Connector CVR Audio Playback Pass 3 Expansion power Pass 1 Mic Expansion in Pass 2 Mic Expansion out 14V light Hi Swap 28V light hi...
  • Page 11 Pass 3 / Expansion – J3, pin a configuration (S2) As shipped, the PAC24 is 5-place intercom, and the ability to convert the system from a 5-place intercom to use an expansion unit that will allow up to 8 places on the intercom per audio panel.
  • Page 12 CVR / IRS Control – J3, pin 2 configuration (S2 PAC24 units can be equipped with an optional Intercom Recording System (IRS, P/N –0200, -0401), which will store up to 60 seconds of radio traffic (on the transceiver selected for transmit). The playback control is a normally open switch connected to ground, which triggers the stored audio.

  • Page 13: Dip Switch Cross Reference

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual 14 V Aircraft 28 V aircraft Pin 18= 14 V input Pin 18=Swap Pin U=Swap Pin U =28 V input 2.3.2.9 Expansion Mode / Telephone configuration (S5)
  • Page 14 PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Table 2-2 Single Audio Panel DIP switch settings Dual PAC24 - Pilot Panel- 28 Volt Aircraft Dual PAC24- Copilot Panel- 28 Volt Air- craft notes notes J4- On/ J5- Pins 1 &...

  • Page 15: Mounting Requirements

    2.3.4 Mounting Requirements The PAC24 must be rigidly mounted to the instrument panel of the aircraft structure and within view and reach of the pilot position(s). Installation must comply with FAA Advisory Circular AC 43.13-2A. The unit may be mounted in any area where adequate clearance for the unit and associated wiring bundle exist.

  • Page 16: Existing Kma 24H Installation

    THE CONNECTIONS BETWEEN THE AUDIO PANELS MUST BE LEFT INTACT. This includes Pins V to V (Key Enable), 21 to 24 (Isolate /Isolate 22) and Y to Y (Private). PS Engineering uses these lines for data bus communications between panels.

  • Page 17: Audio Panel Interface

    2.4.5 Audio Panel interface The PAC24 is designed to interface with standard aircraft avionics, and presents a 500 receiver imped- ance. For best results, a twisted-shielded cable is recommended from the avionics audio source to the au- dio panel, with the shield grounded at the audio panel end.

  • Page 18: 2.4.12 Intercom Wiring

    2.4.12.1 Push to talk intercom The PAC24 can be used as an IntelliVox® intercom, or, as a keyed intercom. Switching J3 pin W to ground will inhibit the IntelliVox® and the intercom squelch will not open until the ICS PTT switch is activated.

  • Page 19: Cvr Output/Playback Button Installation (Pin 2- Option 1 Units Only)

    The normally open switch must be con- nected to pin 2 of J3 of the PAC24, and ground. This pin is shared with the CVR output; therefore the internal DIP switched must be correctly configured (see above).

  • Page 20: Communications Antenna Installation Notes

    Com 5 when the appropriate PTT is activated. If telephone mode is selected by the internal DIP switch, (S4 Switch 4, see §2.3.2.9) the PAC24 is forced into Com 5- Duplex mode. This mode is designed to operate with telecommunications systems. Intercom Audio streams are pro- vided to the COM 5 output, the PTT for Com 5 is inactive, and audio from Com 5 is presented to the headset.
  • Page 21 PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Cellular Plug (typical) Cellular Phone Tip= Microphone out Interconnect Ring= Speaker audio Base=Ground PAC24 Connector Com 5 Audio COM 5 Mic Input Audio Lo 1/8" Cellular Jack...

  • Page 22: Pac24 Pin Assignments

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual PAC24 Pin assignments J3 Connector Alternate Functions Speaker Lo (See Instructions) Aircraft Ground CVR Output Playback PA Speaker Com 1 Mic Aud Com 1 Mic Key...

  • Page 23: Post Installation Checkout

    Unit Installation To install the PAC24, 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.

  • Page 24: Internal Recorder Checkout (Optional Units Only, -0200 And -0400)

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual 18. 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 equip- ment on the aircraft.

  • Page 25: Section Iii Operation

    Audio Selector Panel/Intercom Systems. Please read it carefully before using the equipment so that you can take full advantage of its capabilities. This section is divided into three sections covering the basic operating areas of the PAC24 systems. They are transceiver selection, audio selector, and intercom.

  • Page 26: Dual Panel Fail Safe Operation

    There are 10 pushbuttons associated with the communications transceivers. The lower buttons control which transceiver is selected for transmit. The PAC24 gives priority to the pilot’s PTT. If the copilot it transmitting, and the pilot presses his PTT, the pilot’s microphone will be heard over the selected com transmitter.

  • Page 27: Receive Audio Selector (1)

    3.5.2 Key “Click” The PAC24 is equipped with a “click” function that provides an aural feedback to the user in addition to the tactile button push. This sound can be enabled or disabled by simultaneously holding the COM 1 and COM 2 buttons in for at least 5 seconds.

  • Page 28: Split Mode, Dual Panel

    In a dual panel installation, both pilots have access to any combination of transceivers. Because there is cross communication, each PAC24 knows the other unit’s transmitter selection. The audio panel desig- nated as “Pilot’s” will have transmission priority over the panel designated as copilot’s, when both panels are keyed for transmit on the same radio.

  • Page 29: Volume Control (3)

    We recommend turning the IntelliPax volume control completely CCW (lowest) and then using the PAC24 panel volume control to adjust the passengers’ vol- ume. If the remote IntelliPax expansion (11606R) is used, the PAC24 volume control is used to adjust the passengers’ volume.

  • Page 30: Entertainment Input

    3.7.3.2 Dual Installation Intercom Modes : (Up Position): The primary pilot connected to the PAC24 is isolated from the intercom and is con- nected only to the aircraft radio system. He will hear the selected aircraft radio reception (and sidetone during radio transmissions).

  • Page 31: Internal Recorder System (Option 1 Units Only)

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual In a single installation, the intercom mode select switch determines who is on the phone: ISO - pilot CREW - pilot and copilot and passengers ALL - pilot, copilot, passengers In a standard dual installation, the pilot and copilot can select TEL (Com 5) mode independently by press- ing their respective COM5 Xmt button.

  • Page 32: Section Iv- Warranty And Service

    PS Engineering, Inc. The risk of loss or damage to the product is borne by the party making the ship- ment, unless the purchaser requests a specific method of shipment. In this case, the purchaser assumes the risk of loss.

  • Page 33: Appendix A - Installation Drawing

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix A – Installation Drawing 6.165 6.298 (OUTSIDE) (INSIDE) OF THE UNIT 6.485 Key between 17 and 18 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 (INSIDE) 1.248...

  • Page 34: Appendix B Single Interconnect Wiring (Does Not Apply To 050-240-0400, -0401)

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix B Single Interconnect Wiring (does not apply to 050-240-0400, -0401) 200-240-0010 Appendix B Rev. 24, Dec. 2013...

  • Page 35: Appendix B Dual Interconnect Radio Wiring (All Units)

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix B Dual Interconnect Radio Wiring (all units) UNSW UNSW Com #1 Com #2 Com #3 Com #4 Com #5 (Note 17) (Note 13) Com 1 Audio Hi...

  • Page 36: Dual Pac24 Crew Audio Wiring, Standard (-0100) Units Only

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Dual PAC24 Crew Audio Wiring, Standard (-0100) Units only Playback/ CVR (Note 12) Pilot's PAC24 Copilot's PAC24 Playback (Note 12) P/N 050-240-0100 P/N 050-240-0100 Playback Pilot Mic Audio Hi...

  • Page 37: Dual Pac24Intercom Audio Wiring With Observer Configuration Units (050-240-0400, -0401 Only)

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Dual PAC24intercom audio wiring with Observer Configuration Units (050-240-0400, -0401 ONLY) Pilot ICS key Crew Audio Panel Observer Audio Panel Pilot Mic Audio Hi Observer Mic Audio Hi...

  • Page 38: Dual Pac24Intercom Audio Wiring With Observer Configuration (050-240-0400, -0401 Only) And Expansion Units

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Dual PAC24intercom audio wiring with Observer Configuration (050-240-0400, -0401 ONLY) and expansion units CVR Output CVR Output Pilot Mic Audio Hi Observer Mic Audio Hi PAC24 Observer Unit...

  • Page 39: Appendix C- Instructions For Faa Form 337 And Continuing Airworthiness

    One method of airworthiness approval is through an FAA Form 337, Major Repair and Alteration (Airframe, Power- plant, Propeller, or Appliance) In the case of the PAC24, you may use the following text as a guide. Installed audio selector and 6-place intercom, PS Engineering PAC24, part number 050-240- (XXX) in ( location ) at station .

  • Page 40: Appendix D - Rtca Do160D (Eurocae Ed-14) Environmental Qualification Form

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix D – RTCA DO160D (EUROCAE ED-14) Environ- mental Qualification Form Audio Selector Panel/Intercom Part Number: 050-240-0XXX FAA TSO Number: C50c, Class A, Manufacturer: PS Engineering Incorporated 9800 Martel Road...

  • Page 41: Appendix F, External Ptt Hook Up

    PS Engineering PAC24 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix F, 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.

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