PS Engineering PAC15 - Manual (Page 18)

PS Engineering Inc. ®
PAC15EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-015-0000 Page 3-1 Rev. 1, Jan. 2014
Section III OPERATION
3.1 SCOPE
This section provides detailed operating instructions for the PS Engineering PAC15EX, Audio Controller
Systems. Please read it carefully before using the equipment so that you can take full advantage of its ca-
pabilities.
This section is divided into sections covering the basic operating areas of the PAC15EX systems. They are
Communications Transceiver Selection, Audio Selector, Intercom, and entertainment.
Operation is completely dependent on the specific display that the PAC15EX is interfaced with. Please
refer to the operating guide for your installation.
3.2 Power and Fail Safe (1)
When power is not applied to the Audio Controller, the pilot headset is connected directly to Com 1 as
well as unswitched input #1. This allows communication capability regardless of unit condition. Any time
power is removed or turned
OFF , the audio selector portion will revert to fail-safe mode.
The power switch controls all audio selector panel functions and the intercom. All pushbutton selections
and menu modes will be remembered and return to the last state when turned on.
3.3 Communications Transmit (XMT) Selection (2)
The microphone selector section of the MFD controls which communications radio is selected for trans-
mit. The receiver controls allows selection of the receiver audio.
The PAC15EX-Series has an automatic com receiver selector system. Audio from the selected transceiver
is automatically heard in the headsets and speaker (if selected). This guarantees that the pilot will always
hear the audio from the transceiver selected for transmit.
The PAC15EX “remembers” the receiver selection, so that when switching transmitters from C OM 1 to
C OM 2, if C OM 2 audio was previously selected, C OM 1 audio will continue to be heard. This eliminates
the pilot having to switch Com 1 audio back on, after changing transmitters.
When switching from C OM 1 to C OM 2 while Com 2 was not previously selected, C OM 1 audio will be
switched off. In essence, switching the mic selector will not override prior selection of COM receiver au-
dio.
In normal (not split) modes, the PAC15EX gives priority to the pilot’s radio Push-To-Talk (PTT). If the
copilot it transmitting, and the pilot presses his PTT, the pilot’s microphone will be heard over the se-
lected com transmitter.
3.3.1.1 Split Mode
The split mode can be selected at any time on the MFD. This places the pilot on C OM 1 and the Copilot on
C OM 2.
Pilot on C OM 2 and Copilot on C OM 1 is not possible.
NO T E
Due to the nature of VHF communications signals, and the size constraints in general aviation aircraft, it
is probable that there will be some bleed-over in the Split mode, particularly on adjacent frequencies. PS
Engineering makes no warranty about the suitability of Split Mode in all aircraft conditions.
3.3.1.2 Swap Mode (Switch from Com 1 to Com 2 remotely)
With a yoke mounted, normally open momentary switch, the pilot can change from the current Com
transceiver to the other by depressing this switch. To cancel "Swap Mode," the pilot may either press the