PS Engineering
PCD7100 Series Intercom System with Integral Music System
Installation and Operator’s Manual
The PCD7100, is FAA approved under TSO C50c (Audio Amplifiers), /DO-178B (
Software Considera-
tions for Airborne Equipment
) and DO-214 (
Audio Systems Characteristics and Minimum Operational
Performance Standards for Aircraft Audio Systems
). In addition, the system is approved under Joint Avia-
tion Authorities JTSO C50c.
All systems comply with relevant portions of EUROCAE ED-14D/DO-160D (
Environmental Conditions
and Test Procedures for Airborne Equipment
), ED12B/DO-178B (
Software Considerations for Airborne
Equipment
) and ED- 18/DO-214 (
Audio Systems Characteristics and Minimum Operational Performance
Standards for Aircraft Audio Systems
).
Operation is subject to the following conditions: This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired opera-
tion.
1.5 SPECIFICATIONS
TSO COMPLIANCE
Audio Selector/Intercom
:
C50c, Class A
APPLICABLE DOCUMENTS:
RTCA/DO-214
RTCA/DO-160D
RTCA/DO-178B (Level E)
ENVIRONMENTAL Qualifications:
B1CABSRXXXXXXABBBBTMXXE2
Temperature Range:
Operating:
Storage:
-15º C to 55ºC
-40º C to 85ºC
Altitude
:
Up to 25,000 feet in an non-pressurized area of the cock-
pit.
DIMENSIONS:
Height: 2.0 in. (5.1 cm) Width: 6.25 in. (15.9 cm)
Depth: 7.8 in. (19.8 cm)
WEIGHT (With Rack & Connectors):
2.2 lb. (1.0 kg)
POWER REQUIREMENTS (Including Internal Lighting):
Voltage
:
11 to 33 VDC
Maximum Current
:
11950, 11951
11952, 11953
2.0 Amp (Externally protected by a 3 Amp pull type
circuit breaker.
1.5 Amp (Externally protected by a 2 Amp circuit pull-
type breaker.)
Typical operating current
: 800
mA
Intercom Specifications
Headphone Impedance
:
150 - 1000
Ω
Headphone Output
:
35 mW each headset channel, no clipping <1% THD
Microphone Impedance
:
150 - 600
Ω
Intercom Positions (11950, 11951,
11954, 11956, 11957)
:
6 places (with individual
Intelli
VOX circuits)
Music Inputs
: 2
(Stereo)
Music Muting
:
>-50 dB "Soft Mute" when Com or intercom active.
Distortion:
<1% THD @ 35 mW into 150
Ω
Mic Freq. Response, 3 dB:
300 Hz - 6000 Hz
Music Freq. Response, 3 dB
:
20 Hz –20 kHz
200-971-0005
Page 1-2
Rev. 5, Dec. 2002
