DeCrane Aerospace Audio International LCDHW-420-BN1-x Installation Manual
Document # 540390, Rev IR, 08/2010
Page 7 of 16
3.4
Wiring Requirements
3.4.1 Introduction
The installing agency shall supply and fabricate all external cables
and mating connectors. The length and routing of external cables
should be carefully studied and planned before attempting
installation of the equipment. Allow adequate space for installation
of cable and connectors. Avoid sharp bends and placing cables
near aircraft control cables. Maintain a minimum clearance of three
(3) inches from any control cable. If wiring is run parallel to
combustible fluid or oxygen lines, maintain a separation of six (6)
inches between the lines.
3.4.2 Bonding
Chassis ground connection shall be electrically bonded to the
airframe structure by the grounding lug using a braided copper
bonding strap with <0.01 resistance.
3.4.3 Power Wires
Power and Ground wires shall be in accordance with
M22759
or
equivalent. Protect power wires with circuit breakers or fuses
located close to the electrical power source bus.
3.4.4 AES3 Audio
All AES3 digital audio connections are recommended to use
shielded twisted cable with a cable impedance of 110 +/- 10%
with the shield properly bonded at the both ends. PIC Wire and
Cable, part number E10224 or equivalent is recommended.
3.4.5 3G-SDI Video
All 3G-SDI digital video connections are recommended to use
shielded coaxial cable from PIC Wire and Cable, part number
V78209, using a single run of cable no greater than 50 meters.
BNC connectors with an impedance of 75-ohm should be used
where cable discontinuities may occur.
