PS Engineering PMA8000C Installation Manual - Manual (Page 12)

PS Engineering
PMA8000C Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0303 Page 2-5 Rev. 3, May 2014
The front panel jack can be configured to act as a fifth unswitched input. When configured through the front
panel function switches (see operational section), the audio input to this jack will be presented to the pilot
and copilot headsets, and not muted.
NOTE
The front-mounted utility jack is intended for portable equipment that is advisory in nature. It is NOT
INTENDED for use as a primary warning channel. Audio of importance MUST ALWAYS be hard-wired
into the unswitched inputs of the audio panel.
2.4.9 "Swap" Mode
When a momentary, normally open, push-button switch is connected between pin 20 on the J2 connector
and aircraft ground, the user can switch between COM 1, COM 2 and COM 3 by pressing this switch with-
out having to change the
xmt selector on the audio panel. This yoke-mounted switch eliminates the need to
remove your hands from the yoke to change transceivers. The transfer of TX indication from COM 1 to
COM 2 and COM 3 shows that the swap has been initiated.
Swap selection of COM 3 (COM 1, COM 2, COM 3, or COM 1 and COM 2 only) is a user-selectable op-
tion. Holding the remote “swap” button, press and release the COM 3 RCV button to enable or disable the
COM 3 in the swap rotation.
2.4.10 Bluetooth Telephone Function
The PMA8000C is compatible with most Bluetooth® enabled devices for making and receiving telephone
calls through the aircraft audio system.
2.4.10.1 Cell phone Sidetone
As shipped from PS Engineering, the PMA8000C does provide cellular telephone sidetone (the user’s
voice fed back to the headset). Some cell phones do provide sidetone. In PMA8000C audio panels, Tele-
phone sidetone can be disabled by pressing the COM 3 and ADF buttons for more than one second.
NOTE
Unauthorized use of unapproved cellular telephone devices in aircraft is subject to FCC enforcement action,
which may include a $10,000 fine per incident.
FCC Regulation 47 CFR § 22.925 Prohibition on airborne operation of cellular telephones.
Cellular telephones installed in or carried aboard airplanes, balloons or any other type of aircraft must not
be operated while such aircraft are airborne (not touching the ground). When any aircraft leaves the ground,
all cellular telephones on board that aircraft must be turned off.
PS Engineering, Inc. does not endorse using unapproved cellular telephone equipment in flight, and takes
no responsibility for the user’s action.
PS Engineering does not guarantee compatibility with personal cellular telephones. For a list of phones that
have been tested, visit
http://www.ps-engineering.com/support .
2.4.11 Public Address Mode
By pressing the Mute and SPR pushbuttons at the same time, the PMA8000C will be placed into public
address (PA) mode. In this mode, the pilot will be talking over the cockpit speaker when he presses his PTT
switch. Copilot will still continue on the selected COM radio.
When the discrete Output is enabled, J2 Pin 19 will go low when in PA mode, providing a logic level that
can be used to incorporate a speaker-switching scheme. This 50 mA circuit (10Ω Z) can control a switching
means such as a relay that would transfer the speaker output amplifier from the cockpit speaker to drive
another cabin speaker. If the PA mode is used with a microphone in proximity to an active cockpit speaker,
feedback might result.
To enable the PA discrete Output located at the rear connector, the internal configuration jumper, J4,
MUST be placed across both pins in the header. This jumper is shipped as open from the factory.