PS Engineering
PMA8000-SR Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-880-0000
Page
2-6
Rev. 14, Oct. 2008
This pin can also be used to control passenger Karaoke Mode, by connecting to pin 13 of the J2, or as a PA
cockpit/cabin speaker relay control, as long as the maximum current does not exceed 100 mA..
NOTE
: J2, Pin 18 should NOT be used as a logic switch for music muting if the AUX is going to be used
to switch DME or auxiliary audio.
2.4.14 Intercom wiring
See Appendix C and D for intercom connection configurations. It is critical to the proper operation of this
system to have this connector wiring made in accordance with these diagrams. Use 2- and 3-conductor,
MIL-spec cable as shown. Connect the shields at the audio panel end only, and tie to the audio low inputs
as shown.
NOTE:
The intercom 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 specifica-
tions and fully functionally tested. Harness can be ordered with jacks, or without the headphone and mi-
crophone jacks installed, for easier wire routing through the aircraft.
In
stallation wiring by anyone other than an approved PS Engineering installer, or a PS Engineering
made harness will void the warranty, and may result in an unairworthy aircraft.
2.4.15 SIRIUS Satellite Radio Installation
The SIRIUS Satellite Radio antenna (p/n 510-880-0100) should be mounted on the glareshield using a
double-faced tape. Clean the area to remove any dust or grease.
The antenna coax is supplies with a mating connector to the coax pigtail that is installed in backplate. Do
not remove the ferrite from the cable.
2.4.16 SIRIUS Satellite Radio Functions
2.4.16.1
SIRIUS Satellite Radio Antenna
The Satellite Radio antenna, part number 510-880-0100, should be mounted on the glareshield with a clear
view of the horizon. Avoid mounting behind any electrical sources, such as a heaters, etc. Route the coax
to the back of the tray as convenient.
2.4.16.2
SIRIUS Satellite Radio Antenna connection
The Satellite Radio antenna input of the PMA8000-SR must be connected to the Satellite Radio Antenna at
the pigtail connected to back plate (P/N 430-890-1481).
2.4.16.3
SIRIUS Satellite Radio Output (J2, Pins 29 & 30)
Satellite Radio audio output, J2, Pin 30 (right) and J2-Pin 29 (left) can be connected to the desired enter-
tainment input pins directly, or externally switched to the desired entertainment input pins.
NOTE:
If the installation replaces a GMS340, and J2, Pin30, was previously grounded, it must be
disconnected. Otherwise, the Satellite Radio right channel will be unusable.
2.4.16.4
Sirius Distribution Configuration Jumpers
The music distribution can be configured by the installer to connect the output of the Sirius Module to the
Pilot and copilot (Entertainment 1), the Passengers (Entertainment 2) or both. These jumpers are accessible
through the top cover of the unit. The jumpers are installed for internal loop back Sirius Satellite Radio
from the factory.
This internal configuration allows the installer to retrofit into a GARMIN GMA340
installation without wiring changes.
Note: The Sirius Radio outputs have an impedance of 510 ohms. When attaching an external music
source in parallel with the Sirius radio, be sure the external source can drive 510 ohms or distortion
will occur. If the external source cannot drive 510 ohms, these jumpers must be removed or moved
to the open position (one leg open as shown below).