Sigtronics SCI-S4 Installation Instructions Manual

Sigtronics SCI-S4 Installation Instructions Manual

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Sigtronics SCI-S4 / SCI-S6 Installation Instructions

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.

SCI-S4 / SCI-S6 SYSTEM SPECIFICATIONS

CONFIGURATION - The Sigtronics SCI-S Intercom systems are specifically
designed for permanent, panel mounted installation in aircraft. Up to
four-position intercom is provided with the model SCI-S4. Model SCI-S6
handles up to six positions. "H" Model units for use in high noise aircraft.
UPGRADE - An SCI-S4 or SCI-S6 can replace an existing SPA-400, SPA-
600, ST-400, or ST-600 installation. This requires minor mounting hole
changes and minimal re-wiring.
DUAL STEREO MUSIC INPUTS - Both Crew and Passengers music inputs
accept standard headphone (Walkman) or line level inputs. Automobile
Speaker level outputs can be adapted for use with the SCI-S systems.
COMPATIBILITY – Sigtronics SCI-S intercoms have been designed to
operate with all standard general aviation aircraft radios and headsets.
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.
WEIGHT: 7.3 ounces (SCI-S4 intercom unit with panel and knobs). Jacks
and wiring harness weigh 8.9 ounces. 7.5 ounces (SCI-S6 intercom unit
with panel and knobs). Jacks and wiring harness weigh 10.9 ounces.
INPUT POWER: 11VDC through 32VDC. Maximum current drain 0.2
Amp (SCI-S6)
DISTORTION: Less than 1% total harmonic distortion.
WARRANTY: The SCI-S 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:
A1D1XCAAS2MXXXXXXZBBBBXXXXXXXXXXX
Besides the intercom unit and instructions, each SCI-S system comes
with the following hardware:
Headphone Output Jacks - Accept standard
0.250" aircraft stereo headphone plugs
Microphone Input Jacks - Accept standard
0.206" aircraft microphone plugs. (U93 plug
compatible jacks can be used in place of the
jacks provided - mono installations only)
Mic Jack Insulating Washers, Flat
Mic Jack Insulating Washers, Shoulder
Intercom Panel - lettered on both sides.
Intercom Control Knobs
Mounting Screws 4-40 x 1/2
Drill Template - Adhesive backed hole size
pattern for drilling aircraft panel
Aircraft /IntercomInterface Cable
(4 feet long)
Headphone/Music Interface Cable
(4 feet long)
Stereo music input jacks 3.5mm
Specialists in "SOUND" Management
178 East Arrow Highway, San Dimas, CA 91773 ( 909 ) 305-9399

Hardware Supplied

SCI-S4
4
4
4
4
1
4
2
1
1
1
2
SCI-S6
6
6
6
6
1
4
2
1
1
1
2

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Summary of Contents for Sigtronics SCI-S4

  • Page 1 “H” Model units for use in high noise aircraft. Hardware Supplied UPGRADE - An SCI-S4 or SCI-S6 can replace an existing SPA-400, SPA- 600, ST-400, or ST-600 installation. This requires minor mounting hole Besides the intercom unit and instructions, each SCI-S system comes changes and minimal re-wiring.
  • Page 2 CHASSIS INSTALLATION for each headset). Again, make sure that the jacks will not interfere To upgrade an existing SPA-400 installation to an SCI-S4 or a SPA-600 to an SCI-S6 skip to the “UPGRADING A SPA INSTALLATION TO A SCI-S” section on page 4.
  • Page 3 CO-PILOT SCI-S STEREO WIRING SEE PART 6 UNDER Volume Made in U.S.A. SCI-S PTT SWITCH RING RING "WIRING INSTRUCTIONS" IN THE SCI-S4 / INTERCOM J1 (14) TAN* SCI-S6 INSTALLATION INSTRUCTIONS. BARREL BARREL J1 (13) TAN* HEADPHONE MICROPHONE ++ MUSIC SOURCE AND CONNECTING...
  • Page 4 Note this intercom central grounding point is used to eliminate any unwanted electrical noises, such as alternator whine or strobe noise, 7. The Sigtronics SCI-S system can be installed as shown for use with Stereo from being induced into the intercom system through the grounds. All headsets.
  • Page 5 In this mode all headsets on the intercom will hear the In a SPA installation, the tip terminals of the pilot, co-pilot, and pas- aircraft radio(s). senger headphone jacks are wired to the blue wire (pin 3). They need SCI-S4 / SCI-S6 MODE SELECTION TABLE MODE PILOT HEARS CO-PILOT HEARS...
  • Page 6 Sigtronics SCI-S intercom or any other Sigtronics 2. The general aviation headsets are re-wired for stereo reception. product feel free to contact us directly or email us at tech@sigtronics. com. Technicians are available Monday though Friday 8 am to 4:30 PM 3.

This manual is also suitable for:

Sci-s6

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