Sigtronics SCI-4 Installation And Operating Instructions Manual

Sigtronics SCI Panel Mount Intercom System
INSTALLATION AND OPERATING INSTRUCTIONS Models SCI-4 and SCI-6
INTRODUCTION
ATTENTION INSTALLER: To assure a trouble free installation, please
read the entire instructions through once before beginning.
WARNING: This product can expose you to chemicals including
Polyvinyl Chloride, which is known to the State of California to
cause cancer, and Lead, which is known to the State of California
to cause birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov.
Once again Sigtronics is first. First with VOX, now first with dual Squelch
lights. Get instant visual confirmation on who is breaking squelch.
All of our products are "systems designed" to provide reliable, fail-safe
products at the lowest possible cost. And we stand behind our products
to guarantee your satisfaction!
The Sigtronics Models SCI-4 and SCI-6 intercom systems are specifically
designed for permanent - panel mounted installation in aircraft. The
SCI units allow both pilot and co-pilot to operate the aircraft radios and
have the convenience of voice activated intra-cabin communication.
Passenger connections are provided that allow up to four additional
intercom positions, depending on model.
SIGTRONICS SCI INTERCOM SYSTEM FEATURES:
VOICE ACTIVATED feature allows "hands free" inter-communication
between pilot(s) and passengers. Start speaking and the intercom
instantly turns on to relay your message clearly to the other headsets;
stop talking and it turns off to eliminate background noise. There's no
need to raise your voice or turn your head to communicate.
UP TO FOUR POSITION INTERCOM is provided with the model SCI-4.
Model SCI-6 handles up to six positions. "H" Model units for use in high
noise aircraft.
DUAL SQUELCH CONTROL AND INDICATOR LIGHTS - Another
Sigtronics first. Know instantly who is breaking squelch, crew or pas-
sengers.
TRANSMIT CAPABILITY allows both pilot and co-pilot to transmit to
air traffic control via their push-to-transmit switches and headset boom
mics. Depending on the mode selected, intercom function is disabled
during transmission so only the voice of person transmitting is heard.
PILOT ISOLATE MODE - The pilot can set the intercom so that he can
transmit and receive on the aircraft radio(s) independently from the rest
of the intercom. The co-pilot and passengers can still intercom among
themselves and not be heard by the pilot. Conversely, they won't hear
the aircraft radios or the pilot. This can be an advantage in areas of
busy radio traffic.
CREW ISOLATE MODE - The pilot can set the intercom so that the pilot
and co-pilot (crew) can intercom, transmit and receive on the aircraft
radio(s) and not hear the passenger conversations. Conversely, passen-
gers can intercom simultaneously and not be bothered by radio traffic
or crew conversations.
RADIO MONITORING capability allows radio output to be heard by the
pilot, whether the SCI unit is in "ALL", "ISO", or "CREW" mode.
COMPATIBILITY - Sigtronics SCI intercoms operate with all standard
general aviation aircraft radios and headsets.
FAIL-SAFE feature provides the pilot with the ability to use the aircraft
radios even if power is lost to the intercom.
EASY UPGRADE - In most cases enlarge three holes, add two more,
and re-route three headphone wires in an existing SPA-400 or SPA-600
installation and get the latest technology in aircraft intercoms.
WEIGHT: 7.3 ounces (SCI-4 intercom unit with panel and knobs). Jacks
and wiring harness weigh 6.3 ounces.
SIZE: Panel – 1" x 2½". Chassis – 1" high x 2½" wide x 6" deep. Can be
mounted either horizontally or vertically in the aircraft panel.
INPUT POWER: 11VDC through 32VDC. Maximum current drain 0.2
Amp (SCI-6).
DISTORTION: Less than 1% total harmonic distortion.
WARRANTY: The SCI units are constructed of high quality components
and carry a five year parts and labor warranty.
FAA TSO: C-50c
ENVIRONMENTAL: DO-160D
Environmental Category:
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Specialists in "SOUND" Management
178 East Arrow Highway, San Dimas, CA 91773 ( 909 ) 305-9399