PS Engineering PAC15 - Manual (Page 20)

PS Engineering Inc. ®
PAC15EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-015-0000 Page 3-3 Rev. 1, Jan. 2014
3.6.2 Intercom Volume Control (7)
The single volume control slider on the MFD adjusts the loudness of the intercom for the pilot, copilot,
and passengers. It has no effect on selected radio or music input levels.
Adjust the radios and intercom volume for a comfortable listening level. Most general aviation headsets
today have built-in volume controls; therefore, volume also can be further adjusted at the individual head-
set.
3.6.2.1 Mono headsets in Stereo Installation
The pilot and copilot positions work with stereo or mono headsets. All passenger headsets are connected
in parallel. Therefore, if a monaural headset is plugged in to a PAC15EX Stereo installation, one channel
will be shorted. Although no damage to the unit will occur, passengers with stereo headsets will only hear
in one ear, unless they switch to the “MONO” mode on their headset.
3.6.3 Intercom Modes (8)
The “ICS” control provides the selection of the three intercom modes.
I SO : The pilot is isolated from the intercom and is connected only to the aircraft radio system. 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 entertainment. Neither will
hear aircraft radio receptions or pilot transmissions.
When the Audio Controller is put into the “Split Mode” (pilot on COM 1, copilot on COM 2), the mute
control becomes active. Toggle the mute control, and the intercom becomes active again. The intercom
can be changed to the CRW or ALL mode if desired.
A LL : All parties will hear the aircraft radio and intercom. Crew and passengers will hear selected enter-
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.
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.
3.7 Music Muting (9)
There are two SoftMute™ muting circuits. The crew "Mute" control has four modes, and controls the
Mute function for music 1. Music 2 muting is controlled by an external switch, and has two modes.
The SoftMute™ circuit will cut the music out whenever there is conversation on the radio, the intercom,
or both, depending on the “Mute” mode selected. When that conversation stops, the music returns to the
previous level comfortably, over a second or so.
The mute mode functions are controlled through the Mute command.
MUTE ON - music will mute with either intercom or radio – MUTE ON button is lit.
RADIO MUTE – Intercom will not mute music, radio will mute music. RAD LED indicator is on
INTERCOM MUTE - Radio will not mute music, intercom will mute music - MUTE ICS LED is
ON.
MUTE OFF - “Karaoke” mode - music will not mute except during outgoing transmissions.- All In-
dicators off.
♫ Music
Intercom Radio INDICATOR
Mute ON Muted Muted ON
Mute OFF ♫ ♫ None