Audio International, Inc.
AV-4595-0x-x Installation & Operation
Document #540158, Rev IR, 10/1999
Page 8 of 18
implemented using a twisted shielded pair cable in accordance with MIL-W-
27500 or equivalent. The wire size for the conductors in this cable shall be 22
AWG, MINIMUM. The shield shall be connected everywhere a shield pin is
provided. Shield terminations shall be made as close to the connector pin as
possible.
3.4.4 All modules on the RS-485 data bus shall be connected in a daisy-chain
configuration.
3.4.5 All wires shall be in accordance with MIL-W-22759 or equivalent. Twisted,
shielded cable shall be in accordance with MIL-W-27500 or equivalent.
3.4.6
When running cables, 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.
3.5 Physical
Requirements
3.5.1 The Audio/Video Distribution Unit should be located away from heat sources,
magnetic fields, direct sunlight, and areas with excessive dust. The unit shall
NOT be mounted to the skin of the aircraft.
3.5.2
Refer to Section 7.0 for unit dimensions and mounting hole sizes.
3.5.3
The unit shall be rigidly mounted to its location using the appropriate fastening
hardware supplied by the installing agency.
3.5.4
When mounting the unit to the aircraft’s frame, allow sufficient space for mating
connectors.
3.6 Electrical
Requirements
3.6.1
The AV-4595-0x-x utilizes eight (8) Positronic or D-SUB connectors, each with
multiple wires: two 50-pin (P4, P7), three 37-pin (P1, P2, P5), and three 15-pin
(P3, P6, P8). Refer to section 3.7 for mating connector information, section 3.8
for pin out designations and descriptions.
3.6.2 Specifications:
Electrical
Power
+28 VDC nominal
Operating Range
+18 to +32 VDC
