PS Engineering PMA7000M-S Installation Manual - Manual (Page 25)

PS Engineering
PMA7000M-S Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-070-0012 Page 3-6 Rev. 12, Sept.2000
Table 3-2 Intercom Modes
Mode Pilot Hears Copilot Hears Passenger Hears Telephone Comments
Isolate A/C Radios
Pilot Sidetone
(during radio transmis-
sion)
Entertainment 1 is
Muted Copilot and passenger
intercom
Entertainment #1 Passenger and Copilot
intercom
Entertainment #2 “Phone Booth” mode
Pilot has exclusive use of
the telephone.
In TEL, Pilot & Copilot con-
nected to Com 1 for PTT TX
and receive. Others hear Tel
if off hook. This mode allows the
pilot to communicate
without the others both-
ered by the conversa-
tions. Copilot and pas-
sengers can continue to
communicate and listen
to music
All Pilot
Copilot
A/C Radio
Passengers
Entertainment #1 Copilot
Pilot
A/C Radio
Passengers
Entertainment #1 Passengers
Pilot
Copilot
A/C Radio
Entertainment #2 All have access to phone
through Hook Switch. Pilot
access through TEL switch.
All hear telephone audio if
off hook. This mode allows all on
board to hear radio re-
ception as well as com-
municate on the inter-
com. Music and intercom
is muted during intercom
and radio communica-
tions
Crew Pilot
Copilot
A/C Radio
Entertainment #1 Copilot
Pilot
A/C Radio
Entertainment #1 Passengers
Entertainment #2 Pilot and copilot don’t have
phone access, unless mic
sel in TEL. Passengers
have phone through Hook
Switch, Passengers hear
phone audio. This mode allows the
pilot and copilot to con-
centrate on flying, while
the passengers can
communicate amongst
themselves.
3.7 Telephone Mode
(When interfaced with a Each intercom position has a "hook switch." The pilot's hook switch is the "TEL"
mode on the audio panel, the others are discrete switches mounted adjacent to the headset jacks.
When the intercom is in ALL mode, the pilot can speak on the phone only if the mic selector switch is in
TEL position. All intercom positions will hear the telephone conversation. If any passenger places his or
her switch into the “off-hook” position all passengers will also be heard on the phone. All will hear selected
audio. Com 1 audio is automatically heard in the headsets. The pilot and copilot will have transmit capabil-
ity on Com 1, simply by using their respective PTT switch.
In CREW mode, the pilot and copilot are may use the telephone, with their respective hook switch (the
pilot selects TEL on the mic selector). Any passenger who places their switch into the off-hook position will
also have access to the phone, and all four passengers will hear the conversation.
In ISO intercom mode, when the PMA7000M-S 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. He will also have access to Com
1, and will transmit on that radio using the PTT. All selected audio is provided. If any other passenger goes
“off hook” they will hear the phone.
In all cases, only the pilot (and copilot in ALL or CREW) will hear the cellphone ring. At that time they can
chose to allow a passenger to take the call, or answer the phone.
Note: Because the cellphone uses an intercom circuit, all stations on that circuit will lose
intercom capability when the cellphone is in use.
3.8 Marker Beacon (PMA7000M-S)
The optional Marker Beacon Receiver uses visual and audio indicators to alert you when the aircraft passes
over a 75 MHz transmitter.
The Blue lamp, labeled "O," is the Outer Marker lamp and has an associated 400 Hertz 'dash' tone. The
lamp and tone will be keyed at a rate of two tones/flashes per second when the aircraft is in the range of the
Outer Marker Beacon.