AUDIO INTERNATIONAL, INC.
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Document #540107, Rev. IR, Model No.: RCD-02201-x
2.3
Cautions & Warnings
2.3.1 All audio connections to the RCD should be shielded and properly
grounded at the source. Perform a pin-to-pin check to confirm that all
wires terminate in their proper location. It is important to do a power and
ground check on the pin connections. Ensure that power and ground are
applied only where required.
2.3.2 DO NOT connect or disconnect the unit while power is applied.
2.3.3 DO NOT remove any factory-installed screws. Damage to the unit may
result and void any warranties.
2.4
Wiring Requirements
2.4.1 The installing agency must supply and fabricate all external cables. The
length and routing of external cables must 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.
2.4.2 All power and ground wires must be 24 AWG minimum. All audio lines
require twisted, shielded cable with the cable shields grounded. Power
ground wires must be grounded within twelve (12) inches of the unit. All
wires must be in accordance with MIL-W-22759 or equivalent. Twisted,
shielded cable must be in accordance with MIL-W-27500 or equivalent.
Protect power wires with circuit breakers or fuses located close to the
electrical power source bus.
2.4.3 The RCD-022-01-x is designed to interface with other AI equipment via
the proprietary RS-485 data bus. This is a bi-directional data bus that
allows multiple units to be connected simultaneously. The lines are daisy-
chained between units with 120-ohm resistors installed at both ends of the
wiring harness. Cable designed specifically for data bus use with 120-
ohm nominal impedance should be utilized. Contact Audio International
for recommended cables.
2.5 Physical
Requirements
Refer to Section 5.1 for unit dimensions and mounting attachment points.
