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PS Engineering Inc. ®  

PAC15EX Audio Selector Panel and Intercom System 

Installation and Operator’s Manual 

200-015-0000 

Page 2-8 

New, Oct. 2012 

 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 spacers from § 2.8. 

 

 Figure #4 

 

4.

 

 Place the lid back on the unit aligning holes.  

5.

 

 Install qty. 2 more long thread screws into the lid.  

 

 

Summary of Contents for PAC15EX

Page 1: ...duction 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 email contact ps engineering com For use in Experimental LSA Non certified aircraft ONLY Not intended for ins...

Page 2: ...G REQUIREMENTS 2 1 2 3 2 MOUNTING REQUIREMENTS 2 1 2 3 3 AUDIO CONTROLLER MOUNTING RACK INSTALLATION 2 1 2 4 CABLE HARNESS WIRING 2 3 2 4 1 NOISE 2 3 2 4 2 AUDIO CONTROLLER TRAY AND CONNECTOR ASSEMBLY 2 4 2 4 3 INPUT POWER 2 4 2 4 4 AUDIO CONTROLLER INTERFACE 2 4 2 4 5 SWAP MODE 2 4 2 4 6 UNSWITCHED INPUTS 2 4 2 5 INTERCOM WIRING 2 5 2 5 1 ENTERTAINMENT INPUTS 2 5 2 5 2 ENTERTAINMENT MUTING 2 5 2 ...

Page 3: ...3 2 3 5 NAVAID AUDIO SELECTION 4 3 2 3 6 INTERCOM OPERATION 8 3 2 3 6 1 INTELLIVOX VOX SQUELCH 3 2 3 6 2 INTERCOM VOLUME CONTROL 7 3 3 3 6 3 INTERCOM MODES 8 3 3 3 7 MUSIC MUTING 9 3 3 3 7 1 MUSIC 2 MUTE CONTROL 3 4 Section IV Warranty and Service 4 1 4 1 WARRANTY 4 1 4 2 FACTORY SERVICE 4 1 Appendix B PAC15EX Installation Drawings A 5 1 REMOTE MOUNTING B Appendix C J1 Connector Interconnect A App...

Page 4: ... the art audio isolation amplifier and audio selector that contains an automatic voice activated VOX intercom system and serial data control by a integrated avioncs controller such as an MFD It can switch two transceivers Com 1 Com 2 and two receivers Nav 1 Nav 2 There are four unswitched inputs available for traffic or EGPWS autopilot disconnect tones and or radar altimeter warning Remote MFD con...

Page 5: ...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 1 6 EQUIPMENT SUPPLIED 1 ea of the following items Model Description Part Number PAC15EX PAC15EX Remote mounted Audio Controller with intercom 050...

Page 6: ... 2012 1 7 EQUIPMENT REQUIRED BUT NOT SUPPLIED a Circuit Breaker 1 ea 3 amp PULL TYPE REQUIRED for PAC15EX b Headphone Jacks up to 4 Stereo as Required c Microphone Jacks up to 4 as Required d Headphones 150 Stereo up to 4 as required e Microphones up to 4 as required f Interconnect Wiring coaxial cable 1 8 LICENSE REQUIREMENTS None ...

Page 7: ...ment 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 PAC15EX is not required However the units should be kept away from heat producing s...

Page 8: ... Panel and Intercom System Installation and Operator s Manual 200 015 0000 Page 2 2 New Oct 2012 Figure 2 1 Horizontal Mounting Flanges Figure 2 2 Vertical Mounting Bracket 430 200 0042 x2 475 630 0002 x6 Unit Tray 430 200 0070 475 630 0002 x3 ...

Page 9: ...must be at least 13 8 VDC present at the connec tor J2 pins 8 9 of the PAC15EX 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 inter ference is possible The PAC15EX was designed in a...

Page 10: ...C systems A three 3 Amp circuit breaker is required for all installations Power and ground wires should be 22 connected to J2 Pins 8 and 9 Con nect airframe ground to J2 Pin 10 and 11 only No dropping resistors are required 2 4 4 Audio Controller interface The PAC15EX is designed to interface with standard aircraft avionics and presents a 510 receiver im pedance For best results a twisted shielded...

Page 11: ...w 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 5 1 Entertainment Inputs The PAC1...

Page 12: ...ypical requirements for most aircraft configura tions There are three adjustments in the top cover that allow the installer to tailor the specific functions Unswitched Input 3 Volume adjust from 50 to 200 of input value Bottom cover must be removed Figure 2 3 PAC15EX DIP Switches 2 7 Microphone gain reduction For installations in very noisy aircraft a reduction in the intercom microphone input gai...

Page 13: ... 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 3 Microphone gain settings Carefully reassemble the unit 2 8 Reassembly 1 Using the nylon spacers removed in step 2 compress them so it they becomes ob long 1 2 3 4 5 6 ON OFF O...

Page 14: ...anual 200 015 0000 Page 2 8 New Oct 2012 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 spacers from 2 8 Figure 4 4 Place the lid back on the unit aligning holes 5 Install qty 2 more long thread screws into the lid ...

Page 15: ... air craft radios are adjacent and or the antennas are physically close together PS Engineering makes no expressed or implied warranties regarding the suitability of the PAC15EX in Split Mode 2 10 PAC15EX 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 No Connect 6...

Page 16: ...ched 2 Audio 44 No Connect 2 11 Post Installation Checkout After wiring is complete verify power is ONLY on pins 8 and 9 of the J2 and airframe ground on con nector pins 10 and 11 Failure to do so will cause serious internal damage and void PS Engineering s warranty 2 12 Unit Installation To install the PAC15EX gently slide the unit into the mounting rack until the hold down screw is en gaged Whil...

Page 17: ...ndicators illuminate to show which navigation audio source is in use 12 Verify that the appropriate transmit indicator is active when either push to talk is keyed 13 Verify proper Intercom system operation in the ALL ISO and CREW modes see Table 3 1 14 Verify that the audio selector panel system does not adversely affect any other aircraft system by sys tematically switching the unit on and off wh...

Page 18: ...atic com receiver selector system Audio from the selected transceiver is automatically heard in the headsets and speaker if selected This guarantees that the pilot will always hear the audio from the transceiver selected for transmit The PAC15EX 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 ...

Page 19: ...l switching See 2 7 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 For consistent performance any headset microphone must be placed within inch of your lips prefera bly 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 ...

Page 20: ... mute control becomes active Toggle the mute control and the intercom becomes active again The intercom can be changed to the CRW or ALL mode if desired ALL All parties will hear the aircraft radio and intercom Crew and passengers will hear selected enter tainment During any radio or intercom communications the music volume automatically decreases The music volume increases gradually back to the o...

Page 21: ...passengers hear the radio or talk on the intercom the music will mute If the Audio Controller is in CREW mode then the radio recep tion will not affect the passenger music 3 7 1 Music 2 Mute Control Passengers also have a Karaoke Mode If the passengers are listening to the music 1 input their Karaoke Mode is controlled by the crew Mute control If the passengers are listening to the mu sic 2 input ...

Page 22: ...ing 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 ri...

Page 23: ...1 16 31 15 30 44 1 16 31 Ground Lug Ground Lug 475 440 0001 x2 Back plate assy 475 009 0001 ground lug x2 475 440 0001 x2 Screw w washer Ground lug detail Rear plate detail not to scale Caution Apply steady pressure to the front while screwing the unit into the tray to ensure even seating of the unit and connectors At least one ground lug should be installed to prevent the unit from over insertion...

Page 24: ...perator s Manual 200 015 0000 Appendix C New Oct 2012 5 1 Remote Mounting 6 93 in 7 64 in 5 82 in 0 73 in 1 40 in 1 40 in 1 40 in 0 73 in Ø0 15 in 8 plcs 7 56 in 5 96 in 1 34 in Figure 5 1 PAC15EX Mounting Horizontal Not to Scale 475 630 0002 x6 430 200 0042 x2 430 890 0040 Tray TOP VIEW ...

Page 25: ...nstallation and Operator s Manual 200 015 0000 Appendix C New Oct 2012 Ø0 15 in 8 plcs 2 69 in 1 99 in 0 35 in 4 16 in 7 58 in 0 58 in 1 00 in 1 00 in 1 00 in 1 44 in 6 45 in Figure 5 2 PAC15EX vertical Mounting Option not to scale 430 200 0070 430 890 0040 Tray TOP VIEW ...

Page 26: ...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 31 32 44 43 33 34 35 Notes 1 All shields should be grounded at audio panel only Other end remains floating 2 All mic and headphone jacks must be isolated from ground 3 All shielded wires must be MIL 22750 or 27500 4 Unswitched inputs are always presented to crew headphones regardles...

Page 27: ...lot PhonesJack 8 9 Ground Lug Airframe Ground 11 33 VDC Swap Switch Swap 10 11 1 All Power and Ground wires must be 22 gage wire 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 inform...

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