May 2007
Blue
Sky
Network
100236
D1000C IRIDIUM SATCOM DATA SOLUTION
Page
15
W
IRE
H
ARNESS
F
ABRICATION
& I
NSTALLATION
C
ONSIDERATIONS
Referring to the appropriate section of this manual, assemble a wiring harness as
required for the installation. All wires must be MIL-SPEC in accordance with current
regulations. Two-conductor shielded wire must be used where indicated and be MIL-
SPOEC-27500 or equivalent specification. Shields should only be grounded at the
Modem Unit end of the interconnect cable. Other ends remain floating.
It is imperative that the correct wiring be used and that proper stripping, shielding,
grounding, crimping and soldering techniques be used at all times. Failure to correct
techniques may result in poor performance, electrical noise or unit failure.
Power Wiring
To assure that the D100C will operate properly down to its rated minimum input
voltage, ensure that power wires of at least the recommended size are connected in
accordance with the installation drawings. It is recommended that power and ground
wires are a twisted pair to reduce signal noise.
Ground Bonding
In order to assure installation characteristics match the DO-160 RF and Lightning
test conditions, ensure that ground wires of at least the recommended size are
installed and these wires are connected to a bonded aircraft ground.
Note:
The D1000C Modem Unit needs to be grounded to the airframe for proper
operation. See Pinout tables for correct pin information.
Cable & Wire Harness Routing Considerations
The length and routing of cables must be carefully planned before starting the
installation.
Avoid sharp bends in the cable.
Do not locate the cable near aircraft controls.
Observe all appropriate sections of FAR Parts 23, 25, 27, and 29, as well as AC
43.13-1B and AC 43.13-2A. Damage caused by improper installation will void
product warranty.
In order to ensure optimum performance, the D1000C and associated wiring
should be kept a minimum of three feet from high noise sources and not routed
with cables from high power sources.
UNCONTROLLED COPY IF PRINTED
