PS Engineering
PAC45A Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-045-0100
Page 3-7
January 2020
3.6.2 Bluetooth® Telephone Mode
The PAC45D serves as a full duplex interface for telephone systems such as portable cellular
phones with Bluetooth connectivity.
Warning:
United States FCC Regulations contained in 47 CFR § 22.925 currently contain prohibition on air-
borne operation of cellular telephones.
“
Cellular telephones installed in or carried aboard air-
planes, balloons or any other type of aircraft must not be operated while such aircraft are air-
borne (not touching the ground). When any aircraft leaves the ground, all cellular telephones on
board that aircraft must be turned off.
”
To answer an incoming call, or initiate a call from the PAC45D, select the TEL volume control to
the out position.
In
ALL
intercom mode, all crew and passengers will be heard on the phone when they speak.
In
CREW
mode, the pilot and copilot are connected to the telephone.
In
ISO
intercom mode, when the PAC45D 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.
NOTE
PS Engineering does not guarantee compatibility with personal cellular telephones.
3.6.2.1 Bluetooth Reset
To reset the Bluetooth module, clearing out the connected devices, press TEL and ICS for more
than three seconds.
Then “Forget” the PAC45 on your mobile device, and pa
ir agan from the be-
ginning.
3.6.3 Music Muting Control
The PAC45D
incorporates PS Engineering’s trademark “SoftMute. The SoftMute™ circuit will
mute the music whenever there is conversation on the radio or the intercom. When that con-
versation stops, the music returns to the previous level comfortably, over a second or so.
Holding down ACK button for three (3) seconds will turn the music muting on/off.
When in mute off mode, the intercom, radio & PTT will not mute the music. The mu-
sic muting will reset to mute on mode at each power cycle.
Any
control head will
switch the muting on or off for
all
users.
3.7 Wired Satcom/Cell Phone input
The PAC45D can accommodate a wired telephone input as well as a Bluetooth connection. This
operates the same as the Bluetooth Telephone (
).
3.8 Alert Audio
The PAC45D incorporates an independent alert audio system that can store three audio mes-
sages recorded by the user, and played back when triggered by an external source.
Once triggered, the alert audio will continue until the ACK button (front panel or external) on
the CTL45D control panel is pushed, or the trigger input returns to normal. Edge-triggered alerts
will play 3 times or until ACK is pushed, whichever occur first.
The PAC45D system incorporates three audio alerts.
Chime , ”Alert”, and “Master Caution” (spoken words)
PRELIMINARY
