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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 inter-
com system (ICS). Please read this manual completely to become familiar
with all the features.
This manual contains operational instructions for the following PS Engi-
neering 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 vol-
ume 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.
