PS Engineering PMA5000EX Installation Manual - Manual (Page 20)

PS Engineering
PMA5000EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-550-0100 Page 3-4 Rev. 1 Jan. 2011
Table 3-1 Mic Muff ™ Part Numbers
Manufacturer Model Mic Muff™ Part Number
Bose Dynamic
Electret
M87 Dynamic 90010
90015
90020
David Clark H10-30
H10-20, H10-40
H10-13.4 90010
90015
90015
Lightspeed All 90015
Peltor 7003
7004 90010
90015
Pilot 11-20 & 11-90 90015
Sennheiser 90015
Telex Airman 750, Echelon
AIR3000 90015
90010
3.6.2 Intercom Volume Control (7)
The inner volume control knob adjusts the loudness of the intercom for the pilot and copilot. It has no
effect on selected radio levels, music input levels or passengers' volume level.
The outer volume control knob controls intercom volume or the passengers. It has no effect on radio or
music levels.
Adjust the radios and intercom volume for a comfortable listening level. Most general aviation headsets
today have built-in volume controls; therefore, volume also can be further adjusted at the individual head-
set.
3.6.2.1 Mono headsets in Stereo Installation
The pilot and copilot positions work with stereo or mono headsets. All passenger headsets are connected
in parallel. Therefore, if a monaural headset is plugged in to a PMA5000EX Stereo installation, one
channel will be shorted. Although no damage to the unit will occur, all passengers with stereo headsets
will not hear one channel, unless they switch to the “MONO” mode on their headset.
3.6.3 Intercom Modes (8)
The “ICS” pushbutton switch on the left side of the panel provides the selection of the three intercom
modes. The description of the intercom mode function is valid only when the unit is not in the "Split"
mode. Then, the pilot and copilot intercom is controlled with the Mute button.
This button cycles through the intercom modes, from top to bottom, then bottom to top as: ISO, ALL
Crew and Crew, ALL, ISO. An LED shows which mode is currently active.
I SO : The pilot is isolated from the intercom and is connected only to the aircraft rad io system. He will
hear the aircraft radio reception (and sidetone during radio transmissions). Copilot will hear passengers’
intercom and entertainment, while passengers will hear copilot intercom and their entertainment source.
Neither copilot or passengers will hear aircraft radio receptions or pilot transmissions. The pilot can hear
music if desired. See §3.7.2
A LL : All parties will hear the aircraft radio and intercom. Crew and passengers will hear selected ente r-
tainment. During any radio or intercom communications, the music is muted. The music volume increases
gradually back to the original level after communications have been completed.
C REW : Pilot and copilot are connected on one intercom channel and have exclusive access to the aircraft
radios. They may also listen to Entertainment 1. Passengers can continue to commun icate with themselves
without interrupting the Crew and may listen to entertainment as configured.