Audio International PA-9075-x01-x Installation Manual - page 11
PA-9075-x01-x Installation Manual
Document # 540312, Rev A, 01/2006
Page 10 of 15
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 Power Wires
The PA-9075-x01-x can consume 13 Amps (maximum), which
should NOT be routed through one (1) 22 AWG wire. Audio
International recommends that all five (5) power supply wires use
22
AWG
(minimum)
in
accordance
with
MIL-W-22759.
Circuit/chassis ground connection shall be bonded to an electrically
conductive chassis mounting point or frame ground with less than
0.01 Ω resistance using less than 50 Ω impedance cable.
3.4.3 Serial Digital Audio Wiring
All digital audio wire connections must be twisted shielded cable
with the shield properly grounded to the dedicated pin at the source
end to the dedicated pin at the load end. Twisted shielded cable
shall be 22 AWG (minimum) for digital audio signals and shall be in
accordance with NEMA WC 27500 or equivalent. Cable
impedance must be 110 Ω +/- 10%.