Sigtronics SCI-6 - Manual

INTRODUCTION
ATTENTION INSTALLER: To assure a trouble free
installation, please read the entire instructions through
once before beginning.
WORLDS FIRST AND ONLY VOICE ACTIVATED
INTERCOMS WITH DUAL SQUELCH INDICATORS!
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
passengers.
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, passengers 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 2.5”. Chassis - 1” high x 2.5” 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 Catagory:
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MADE IN THE USA
Sigtronics SCI Panel Mount Intercom System
INSTALLATION AND OPERATING INSTRUCTIONS Models SCI-4 and SCI-6
Specialists in “SOUND” Management
178 East Arrow Highway, San Dimas, CA 91773 ( 909 ) 305-9399