PS Engineering PMA8000BT NUI Installation Manual - Manual (Page 12)

PS Engineering
PMA8000BT Audio Selector Panel and Intercom System
Installation and Operator’s Manual for units with serial number CBT1561 and above
200-890-1702 Page 2-5 New, April 2011
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 and 2 by depressing this switch without having to
turn the mic selector switch. 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 shows that the swap has
been initiated; there is no dedicated swap indicator.
2.4.10 TEL (Duplex) Function for Cell Phones
Audio streams selected by the intercom mode are provided to the Tel output, and audio from Tel is present-
ed to the headset. This allows a telephone-like audio interface.
The TEL mode in the PMA8000BT is compatible with many cellular telephones with hands-free headset
interfaces. The front panel 3/32” utility jack can be used as the interface to the Cell Phone, or a jack can be
installed somewhere on the aircraft panel. The wired interface jack is connected with the PMA8000BT as
shown: A patch cord (3/32” to 3/32”) is available from PS Engineering under P/N 425-006-7026.
3/32" Cellular Jack
COM 3 Mic Input
Com 3 Audio
Audio Lo
Cellular Plug (typical)
Tip= Microphone out
Ring= Speaker audio
Base=Ground
This is a typical interconnect
PS Engineering does not guarantee
compatability in all cases.
Cellular Phone
Interconnect
Figure 2-1 Cellular telephone interface for rear connector, if an additional jack is desired
The PMA8000BT is compatible with most Bluetooth® enabled devices for making and receiving telephone
calls through the aircraft audio system. Visit
www.ps-engineering.com/support to see a list of tested phones.
2.4.10.1Cell phone Sidetone
As shipped from PS Engineering, the PMA8000BT does NOT provide cellular telephone sidetone (the us-
er’s voice fed back to the headset). Some cell phones do not provide sidetone. In PMA8000BT audio panels
above serial number W04748, Telephone sidetone can be enabled by pressing the TEL and ADF buttons for
more than one second. For units with serial number W04747 and below, an internal modification can be
made that will allow the PMA8000BT to provide sidetone. Contact PS Engineering for more information.
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.