Engineering Incorporated pm1000II Pilot's Manual
202-123-0001 1PM1000II Pilot Guide & User Manual
9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
PM1000
PM1000
PM1000
II
II
II
4-Place, Panel-Mounted Intercom
Pilot’s Guide
Pilot’s Guide
Pilot’s Guide
Part Number 11920 (with Crew) and 11922 (without Crew)
FAA-Approved TSO C50c
May 2015
May 2015
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Revision 2
Revision 2
Flying Never Sounded So Good! ™
2 202-123-0001 PM1000II-Pilot Guide & User Manual
Section I General Information
1.1 Introduction
The PM1000II, is an FAA-TSO approved, panel mounted, 4-place intercom system (ICS). Please read this manual completely to become familiar
with all the features.
This manual contains operational instructions for the following PS Engineering units:
Model Description Part Number
PM1000II 4-place intercom system w/Pilot ISO 11922
PM1000II Same as above w/internal crew 11920
1.2 Description
The PM1000II is a 4-place, panel-mounted intercom with individual volume and squelch controls for the pilot and copilot.
Both pilot and copilot have transmit capabilities over the radio. The
PM1000II allows only the person who presses their PTT to be heard over
the aircraft radio. If both pilot and copilot press the PTT at the same time,
the copilot will override (Ideally suited for training environments). Pilot
regains priority by switching the unit off.
1.3 Approval Basis
The PM1000II, part numbers 11920 and 11922 are FAA-approved under
TSO-C50c.
1.4 Specifications
Input power: 13.8 - 27.5 Volts DC
Current Drain: < 250 mA (1 Amp Circuit breaker)
Headphone Impedance: 150-1000 ohms typical
Audio Distortion: <10% @ 75 mW into 150 load
Aircraft Radio Impedance: 1000 typical
3 dB Mic Frequency Response: 350 Hz — 6000 Hz
3 dB Music Frequency Response: 200 Hz to 15 kHz
Unit weight: 12 Ounces (0.342 kg)
Dimensions: 1.25" H x 2.60" W x 5.50" D
(3.2 x 6.6 x 14 cm)
Environmental and technical qualifications: RTCA DO-160B/DO-170
Temperature -20ºC to +55ºC
Altitude 50,000 ft.
202-123-0001 3PM1000II Pilot Guide & User Manual
Section II OPERATION
PM1000II with ISO/ALL (p/n 11922)
1 Pilot Volume Control
2 Pilot Squelch Control
3 Copilot Volume Control
4 Copilot Squelch Control
5 Intercom Mode Switch
6 Power/Transmit indicator
Turn the PM1000II on by rotating pilot's volume control (1). This also engages the automatic fail-safe system. The pilot's volume control does not
control the volume of the aircraft radio, allowing an additional degree of
aircraft radio listening flexibility.
2.1 Adjusting The Volume (1, 3)
The pilot's volume control knob (1) adjusts the loudness of the intercom
and music for the pilot only. It has no effect on aircraft radio volume level.
The copilot's volume control (3) adjusts the volume for the copilot.
In the 11920 (PM1000II with Crew) units, the volume level for both passengers can be adjusted by a screwdriver adjusted potentiometer located on
the left hand side of the intercom as viewed from the front. It is possible to
adjust the overall output power to the passenger headsets by changing this
potentiometer. Rotating the potentiometer counterclockwise increases the
passenger volume.
2.2 Squelch Control (2, 4)
The PM1000II provides individual VOX circuits for the pilot and copilot.
The ability to adjust the trip level of these VOX circuits (squelch control)
allows the use of dissimilar headsets without the frustration of clipping the
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