Specifications
PS Engineering 
PMA8000B Audio Selector Panel and Intercom System 
Installation and Operator’s Manual 
200-890-0100  Page 3-7  Rev. 13, Dec. 2009 
Crew
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  MP3 
Avidyne 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 PMA8000B to provide sidetone. Contact PS Eng i-
neering for more information. 
3.10  Utility Jack 
The 2.5-millimeter (3/32”) jack on the front of the PMA8000B 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 
PMA8000B 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 
Serial  J01861  and  above: 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 PMA8000B  has  a  signal on  music  #1 
input  coming in from the rear connector, the front 
panel  jack  automatically  becomes  a  Priority 
Advisory  input,  and  is  heard  in  the  crew 
headphones. 
NOTE 
The front jack is no substitute for the certified installation of alerts such as the GPS waypoint or autopilot 
tones. These still must be hard wired into the back by your installer. 
[Before Serial Number J01861 The front jack can be configured to be a priority advisory input for auxil-
iary systems such as a GPS terrain advisory or portable traffic watch system. When configured as priority, 
the audio is presented to the pilot and copilot only, and is NOT muted by radio or intercom activity. Co n-
nect the jack (J) to the output of the device with the advisory audio. The jack priority mode is activated by 
pressing the Function Control F (TEL) and  Function A  (AUX) buttons at the same time. To disable the 
jack as priority, select any other function. NOTE: This function not present in serial number J01861 and 
above] 










