PS Engineering PMA8000BTi Installation and operation manual - page 26
PS Engineering
PMA8000BTi Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-1722
Page 3-5
Rev. 1, March 2016
The outer volume control knob controls intercom volume for 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.
3.7.2.1 Mono headsets in Stereo Installation
The pilot and copilot positions will function with mono headsets. However, the IntelliAudio functionality
will be lost.
All passenger headsets are connected in parallel. Therefore, if a monaural headset is plugged in to a
PMA8000BTi 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.
3.7.3
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 radio system. He will hear
the aircraft radio reception (and sidetone during radio transmissions). Copilot will hear passengers’ inter-
com and entertainment, while passengers will hear copilot intercom and entertainment. Neither will hear
aircraft radio receptions or pilot transmissions. The pilot can hear music if desired. See §3.8.1
A
LL
: 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 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 communicate with themselves
without interrupting the Crew and may listen to entertainment as configured.
3.7.3.1 Remote ICS Mode Control (Serial Number BTi1083 and above)
The panel- or yoke-mounted optional “swap” switch can also act as a remote intercom mode selector in
units with serial BTi1083 and above. A long (>1 second) press of the swap switch will increment the inter-
com mode selector from ISO-ALL-CRW-ISO, etc. each time the button is pressed and held.
A short press activates the COM 1 to COM 2 to COM 1 swap function.
3.7.3.2 Split Mode Intercom
When Split mode is activated, the intercom for the crew is turned off (muted), automatically, and the ICS
LED indicator goes off. This prevents confusion from multiple conversations. If crew intercom communi-
cation is desired, press the MUTE button to place the intercom into the CREW mode.
3.8 Music and Music Muting (6)
The PMA8000BTi has two independent music inputs at the rear connector, and a front panel jack. The
PMA8000BTi also has the ability to receive streaming music from a Bluetooth-enabled device.
Music 1 will be heard by the pilot and copilot positions. Music 1 can also be distributed to the passengers
using the Function “C” control (See § 3.11.3). The front panel jack input is treated as Music 1, and the
streamed music in the PMA8000BTi is also Music 1.
NOTE:
All music devices should be turned off for take off, landing, or any critical phase of flight. FAA Regulation
14 CFR 91.21 restricts the use of portable electronic devices.