PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200
Page 2-2
Rev 6, Feb. 2013
2.3.2
Mounting Requirements
The PMA6000B 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 43.13-2B. The
unit may be mounted in any area where adequate clearance for the unit and associated wiring bundle exist.
2.3.3
Mounting Rack Installation
Remove the unit from the mounting tray unscrewing the 3/32-inch hex-head screw that is in the center of the
unit. The hex-head screw is the lower opening. Carefully slide the unit free of the tray. Set the unit aside in a
safe location until needed. Install the tray using six FHP 6-32 x ½-inch screws, P/N 475-632-0012 and #6-
32 clip nut, P/N 475-630-0002. The audio selector panel must be supported at front and rear of the mount-
ing tray.
2.3.4
Audio Panel Tray and Connector Assembly
The rack connectors mate with one 44-pin connector in the PMA6000. The connector are a sub-miniature
crimp-type, and require the use a hand crimp tool, from table below (or equiv.). The connector is 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).
Two grounding lugs are provided, which may be attached to the rear mounting plate with 2 ea #4-40 x ¼”
screws with captivated lock washers. These provide a convenient location to connect the shield ground ter-
minations.
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 Connector Pin crimping tools
2.4
Cable Harness Wiring
Refer to Appendix C for assembling the wiring harness as required for the installation. All wires must be
MIL-SPEC in accordance with current regulations. Two- and three-conductor with shield 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 re-
sult in improper operation, electrical noise or unit failure. Damage caused by improper installation will void
the PS Engineering warranty.
NOTE:
This harness can be custom made by PS Engineering, Inc. Simply call the factory (800-427-2376) and ob-
tain a wire harness work sheet or visit our website at http://www.ps-engineering.com/downloads.shtml . The
harness will be made to your specifications and shipped three business days of receiving the order sheet. All
harnesses are fully functionally tested before shipping. All hardware is included, jacks are optional. (See
Appendix C for intercom connection diagrams).
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.
