PS Engineering PMA8000B Installation Manual - Manual (Page 27)

PS Engineering
PMA8000B Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0101 Page 3-6 Rev. 4, April 2012
♫ Music Intercom Radio Annunciation LED
Mode 1 Muted Muted “Mute on” on
Mode 2 ♫ ♫ “Mute off” off
Mode 3 ♫ Muted “Radio mute” off
Mode 4 Muted ♫ “Intercom mute” off
The passenger’s intercom also has a SoftMute™ circuit. If the passengers hear the radio, or talk on the
intercom, the music will mute. If the audio panel is in CREW mode, then the radio reception will not af-
fect the passenger music.
Passengers also have a Karaoke Mode. If the passengers are listening to the music 1 input or front panel
input, their Karaoke Mode is controlled by the front panel “Mute” button. If the passengers are listening
to the music 2 input, their Karaoke Mode is activated by an external switch installed either in the panel, or
connected to the AUX button logic output pin on the PMA8000B MP3.
3.8.1 Music in Pilot ISO mode
If desired, the pilot can elect to hear Music #1, in the ISO mode. While the intercom is in ISO mode, push
the Function (TEL) and ICS buttons at the same time. This mode will be indicated by the ICS ISO LED
blinking slowly (once in every 5 seconds). The pilot will now hear Music #1, and it will mute in accor-
dance with the Mute mode as described in §3.8.
3.9 Telephone Mode (9)
The TEL mode serves as a full duplex interface for telephone systems such as AirCell or portable cellular
phones with earpiece jacks. When interfaced with an approved airborne telecommunications system, the
PMA8000B 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 PMA8000B 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 side-
tone, 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 PMA8000B does NOT provide cellular telephone sidetone (the
user’s voice fed back to the headset). Some cell phones do not provide sidetone. In PMA8000B Telephone
sidetone can be enabled 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 PMA8000B has three distinct functions: