DeCrane Aerospace Audio International
LCDP-9151-201 Installation Manual
Document # 540355, IR, 11/2007
Page 9 of 16
grounds are referenced to pin two (2) of connector P1. All case
grounds are recommended to be made with braided bond cable.
This connection should be made as close as possible (not to
exceed 6 inches) to the module. Alternatively, chassis ground can
be achieved by mounting the module directly to an electrically
conductive section of the aircraft frame. Power and ground wires
shall be in accordance with
MIL-W-22759
. Protect power wires with
circuit breakers or fuses located close to the electrical power
source bus.
3.4.3 Video Lines
All single signal connections shall be in accordance with
MIL-W-
22759
.
Composite video connections shall be shielded coaxial cable in
accordance with
M17/94-RG179
or equivalent. Cable shields shall
be grounded at the source. Use of individual wires rather than
proper coaxial cable connections through production breaks is
unacceptable, and will cause significant and detrimental noise
introduction to the video signal supplied to the LCDP-9151-201.
Serial digital video connections are recommended to use shielded
coaxial cable in accordance with
PIC V76261
or equivalent.
SD-SDI video connections are recommended to use shielded
coaxial cable
PIC V72261
.
3.4.4 RS-485 Connections
RS-485 connections shall be twisted shielded cable with the shield
properly grounded at the source (ideal practice) and floating at the
load end. If shield cannot be grounded at the source, then ground
at the load end with the source end floating. Each wire length shall
be terminated at one end only. The shield for RS-485 shall be
terminated to a dedicated pin. Twisted shielded cable shall be in
accordance with
NEMA WC 27500
or equivalent.
3.4.5 RGB Connections
RGB wiring shall be in accordance with
NEMA WC 27500
or
equivalent.
