PM3000 (11931) 4-Place Standard Intercom (Without Crew) Wiring Diagram
PM3000 Unit: DB-25 Male
Power In
Ground
A/C Radio Phone Audio Hi
A/C Radio Phone Audio Lo
A/C PTT
A/C Mic Audio Hi
A/C Mic Audio Lo
Pilot Phones (L)
Pilot Phones (R)
Pilot Phones Lo
Copilot Phone Audio (L)
Copilot Phone Audio (R)
Copilot Phone Audio Lo
Pass 1 Phone Audio (L)
Pass 1 Phone Audio (R)
Pass 1 Phone Audio Lo
Pass 2 Phones Audio (L)
Pass 2 Phones Audio (R)
Pass Phones Audio Lo
13
1
14
12
25
22
9
21
8
20
7
19
6
To Aircraft Radio
Phones Audio Hi
AUX Headphone
Jack
To Aircraft Radio Phones Low
Pilot Headphone Jack
Copilot Headphone Jack
Passenger 1
Headphone
Passenger 2
Headphone
12 or 28 VDC
1A
Aircraft Radio PTT
Aux Mic Jack
To Aircraft Radio Mic Audio Lo
To A/C Radio Mic Audio Hi
2-conductor w/shield
3-conductor w/shield
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9800 Martel Road
Lenoir City, TN 37772
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PM3000
Pass 1 Mic Audio Hi
Pass 1 Mic Audio Lo
Pass 2 Mic Audio Hi
Pass 2 Mic Audio Lo
Copilot Mic PTT
Copilot Mic Audio Hi
Mic Audio Lo
Pilot Mic PTT
Pilot Mic Audio Hi
Pilot Mic Audio Lo
Music (L)
Music (R)
Rev. 4, Aug. 2003
15
16
3
10
23
2
24
11
Pass 1 Mic
Pass 2 Mic
Copilot Mic Jack
Copilot PTT
Pilot Mic Jack
9800 MARTEL ROAD, LENOIR CITY TN 377722
TITLE:
Pilot PTT
Entertainment Input
DOCUMENT NUMBER:
SIZE
DATE:
9/27/99
ECO
C/U for Publ.
PM3000 (11931, 11933)
WIRING DIAGRAM
120-133-0002
Recorder Playback Connection (11933, 19934)
Page 12
200-193-0004
REV
SHEET OF
1
3.5 mm plug
Part Number 11931: 4-Place
Standard
Standard
and
Part Number 11932: 6-Place with CC
REW Function
REW
High-fidelity Stereo Intercom System
Operation and Installation Manual
FAA-TSO
2
1
Also includes 11933, 11934, non-FAA TSO units
Document P/N 200-193-0004
Revision 4, Aug. 2003
PS Engineering, Inc. 2003 ©
Copyright Notice
Any reproduction or retransmittal of this publication, or any portion thereof, without the expressed written permission of
PS Engineering, Inc. is strictly prohibited. For further information contact the Publications Manager at PS Engineering,
Inc., 9800 Martel Road, Lenoir City, TN 37772. Phone (865) 988-9800
200-193-0004 Rev. 4, Aug. 2003
C50c
Page 1
Section I General Information
1.1 Introduction
The PM3000 is an FAA-TSO approved, panel
mounted, 4- to 6-place high-fidelity stereo intercom system (ICS). Please read this manual
completely before installation to minimize the
risk of damage to the unit and to become familiar with all the features.
1.2 Scope
This manual contains installation and operational instructions for the following PS Engineering unit:
Model Description Part Number
PM3000 Standard 4-place system 11931
PM3000 Crew Mode, 6-place system 11932
PM3000 4-place w/digital recorder (non-TSO) 11933
PM3000 6-place w/digital recorder (non-TSO) 11934
1.3 Description
The PM3000 is a 4- or 6-place (depending on
model), panel-mounted intercom with multiple
volume and VOX (voice activated squelch) circuits using unified volume and squelch controls
for the pilot, copilot and passengers.
With few controls for the pilot to use, the operation of the PM3000 is very straightforward. Yet
the unit outperforms its much more complicated
competition. Although there is only one volume
control knob, when an adjustment is made to the
volume control, all output amplifiers are being
changed simultaneously. Likewise, when the
squelch control knob is adjusted, several VOX
circuits are being changed at the same time.
Since the system is designed to use modern stereo headsets, it is not necessary to balance the
volume and squelch controls at the intercom.
A mode switch allows the pilot to select different configurations. The "ALL" mode places all
headsets on a party line. In the "ISO" mode, the
pilot is isolated from all others and is connected
to the aircraft radio allowing un-interrupted radio communications.
The third mode, "CREW," included in part
number 11932 (and 11934), allows the pilot and
copilot to be separated from the passengers.
The PM3000 has an automatic fail-safe interconnect to the aircraft radios. If power is disrupted
to the intercom for any reason, the pilot's headset is connected directly to the aircraft radio allowing continued radio communications.
A 2-color LED is green when power is on and
changes to red when a Push to Talk (PTT or microphone key) is pressed.
Provision for entertainment input allows the pilot, copilot and passengers the option to listen to
music during flight. During intercom or aircraft
radio reception, this music will automatically
mute to allow communications without distraction. When the activity ceases, the SoftMute™
circuit gradually returns the music to the original
listening volume. By depressing the “Mute” control (located on the Squelch knob) once, it is
possible to have the music remain at a constant
level, regardless of any ICS or radio traffic.
During various phases of flight, the degree of
importance of the aircraft radio will vary. Because the "ISO" mode connects the pilot directly
to the aircraft radio, select the "ISO" mode when
the pilot must have top priority on radio transmissions.
Both pilot and copilot have transmit capabilities
over the radio. The PM3000 only allows the
voice of the person who presses their PTT to be
transmitted over the aircraft radio. If both pilot
and copilot press the PTT at the same time, the
copilot will override. When either pilot or copilot presses PTT, all other microphones are disabled. The pilot can regain priority by switching
the unit off.
PM3000 (11932, 11934) w/Crew, 6-place wiring diagram
To A/C Radio Mic Audio Hi
To Aircraft Radio Mic Audio Lo
12 or 28 VDC
1A
To Aircraft Radio
Phones Audio Hi
13114
Power In
Ground
PM3000 Sub-D DB-25 Male on unit
Aircraft Radio PTT
Aux Mic Jack
To Aircraft Radio Phones Low
AUX Headphone
Jack
12
25
22
A/C PTT
A/C Radio Phone Audio Hi
A/C Radio Phone Audio Lo
Pilot Phones (L)
A/C Mic Audio Hi
A/C Mic Audio Lo
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SEE NOTE 6
Passenger 1
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Copilot Phone Audio Lo
Pass 1 & 3 Phone Audio (L)
Pass 1 & 3 Phone Audio (R)
Pass 1 Phone Audio Lo
Pass 2 & 4 Phones Audio (L)
Pass 2 & 4 Phones Audio (R)
Passenger 4
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Pass 2 Mic
Pass 1 Mic
Passenger 2
Headphone
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Pass 2 Mic Audio Hi
Pass 1 Mic Audio Hi
Pass 1 Mic Audio Lo
Pass Phones Audio Lo
3-conductor w/shield
2-conductor w/shield
Copilot PTT
Copilot Mic Jack
Pass 3 Mic
16
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Copilot Mic PTT
Copilot Mic Audio Hi
Mic Audio Lo
Pass 2 Mic Audio Lo
Pass 3 Mic Audio Hi
SEE NOTE 6
Pass 4 Mic
Pilot Mic Jack
18
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23
Pilot Mic PTT
Pilot Mic Audio Hi
Pass 3 Mic Audio Lo
Pass 4 Mic Audio Hi
Pilot Mic Audio Lo
Pass 4 Mic Audio Lo
2
REV
120-131-0001
PM3000 WIRING DIAGRAM
DOCUMENT NUMBER:
9800 MARTEL ROAD, LENOIR CITY TN 37922
TITLE:
SIZE
Pilot PTT
Entertainment #1 Input
Entertainment #2 Input
24
11
17
Music #2 (L)
Music #1 (L)
Music #2 (R)
Music #1 (R)
1
1
SHEET OF
C/U for Publ.
9/27/99
DATE:
ECO
SEE NOTE 6
4
Rev. 4, Aug. 2003
Page 2
200-193-0004
200-193-0004 Rev. 4, Aug. 2003
Page 11
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