PS Engineering PMA9000EX Installation Manual - Manual (Page 24)

PS Engineering
PMA9000EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-920-0000 Page 3-3 Rev. 9, Jan. 2011
3.7.3 Intercom Modes
The “ICS” pushbutton switch on the left side of the panel provides the selection of the three intercom
modes. The description of the intercom mode function is valid only when the unit is not in the "Split"
mode.
This button cycles through the intercom modes, from left to right, then right to left as: ISO, ALL CRW
and CRW, ALL, ISO. An LED behind the text shows which mode is currently active.
I SO : The pilot is isolated from the intercom and is connected only to the aircraft radio sy stem. He will
hear the aircraft radio reception (and sidetone during radio transmissions). Copilot will hear passengers’
intercom and entertainment, while passengers will hear copilot intercom and ente rtainment. Neither will
hear aircraft radio receptions or pilot tran smissions.
A LL : All parties will hear the aircraft radio and intercom. Crew and passengers will hear selected ente r-
tainment. During any radio or intercom communications, the music volume automatically decreases. The
music volume increases gradually back to the original level after communications have been completed.
In the Alternate Intercom Mode, selected from the submenu (section 3.8.1), the passengers will not hear
the aircraft radios. In addition, when the radio audio is active, the passenger microphones will not be
heard by the pilot and copilot, although the passengers will hear themselves and the crew.
C REW : Pilot and copilot are connected on one intercom channel and have exclusive access to the aircraft
radios. They may also listen to Entertainment 1. Passengers can continue to communicate with themselves
without interrupting the Crew and may listen to entertainment as configured.
3.8 EnCoder And Push-Push Switch - ECAPS (8)
ECAPS is a system that consists of an encoding knob and a push-push
switched integral into the knob. By pressing the knob, it activates the
selection and by turning the knob, a function can be accessed. Functions
will always come up on the display with most recently used function first.
By turning the larger knob of the concentric control the various functions
will be displayed. When the desired function is displayed, tur ning the
smaller knob will turn that function on or off, as desired. . Then the small
knob can be pushed to accept the change, or the change will be accepted
automatically five seconds after the last change. The display returns to the
primary display after the unit accepts the change.