PS Engineering PMA8000BTi Installation and operation manual - page 28
PS Engineering
PMA8000BTi Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-1722
Page 3-7
Rev. 1, March 2016
Crew
of aircraft must not be operated while such aircraft are airborne (not touching the ground). When any air-
craft leaves the ground, all cellular telephones on board that aircraft must be turned off.”
The TEL mode serves as a full duplex interface for telephone systems such as portable cellular phones with
earpiece jacks (or Bluetooth connectivity. When interfaced with an approved airborne telecommunications
system, the PMA8000BTi can serve as a audio control and distribution center. When TEL is active, the
button will blink about twice as fast as the normal transmit rate.
In ALL intercom mode, all crew and passengers will be heard on the phone when they speak. All will hear
selected audio. Com audio is automatically heard in the headsets.
In CREW mode, the pilot and copilot are connected to the telephone. The pilot and copilot will have
transmit capability on the other selected transceiver Com 1 or 2, simply by using their respective PTT
switch.
In ISO intercom mode, when the PMA8000BTi is in the TEL mode, the pilot position is in the "Phone
Booth." Only the pilot will hear the telephone, and only he will be heard. He will also have access to Com 1
or 2, and will transmit on that radio using the PTT. All selected audio is provided.
NOTE
Because the cell phone uses an intercom circuit, all stations on that circuit will lose intercom capability
when the cell phone is in use. Intercom conversations will still be present if the cell phone provides
sidetone, or if the audio panel is modified for telephone sidetone.
PS Engineering does not guarantee compatibility with personal cellular telephones.
Visit
www.ps-engineering.com
for a list of phones that have been tested.
3.9.1
Cellular telephone sidetone
As shipped from PS Engineering, the PMA8000BT provides cellular telephone sidetone (the user’s voice
fed back to the headset). Some cell phones provide sidetone. In PMA8000BT Telephone sidetone can be
disabled by pressing the TEL and ADF buttons for more than one second.
3.10 Utility Jack
The 2.5-millimeter (3/32”) jack on the front of the PMA8000BTi has three distinct functions:
Cell phone input
Advisory audio input
Music input
The use of this jack is controlled by three Smart Function Keys (SFK) controlled from the front panel. See
Section 3.11 — Smart Function Keys.
3.10.1 Cellular phone
When a cellular telephone is connected to this jack using a 2.5 mm
to 2.5 mm adapter cord (PS Part Number 425-006-7026), the
PMA8000BTi audio panel will connect the intercom to the cell
phone when the “TEL button is pressed (9), and behave as described
in section 3.7. The telephone ringer, if present, will be heard unless the input is muted by other radio or
intercom.
3.10.2 Audio Advisory Input
The front jack can be used as a priority advisory input for auxiliary systems such as a GPS terrain advisory
or portable traffic watch system. To prevent radio or intercom from muting this input, press the “Mute”
button.
3.10.2.1
Smart Jack Function
When the PMA8000BTi has a signal on music #1
input coming in from the rear connector, the front
panel jack automatically becomes a Priority Advi-
sory input, and is heard in the crew headphones.