Cautions; Cabling And Wiring - AEM SM16 Installation And Operation Manual

2.4.2

Cautions

Do not bundle any lines from this unit with transmitter coax lines. Do not
bundle any logic, audio, or DC power lines from this unit with 400 Hz synchro
wiring or AC power lines. Do not position this unit next to any device with a
strong alternating magnetic field, such as an inverter, or significant
audio interference will result. In all installations, use shielded cable exactly
as shown and ground as indicated. Significant problems may result from not
following these guidelines.
Microphone signals run through the CC450-0V2 unit. If the controller is
removed, a Dummy Plug (included with the Installation kit) must be installed
on the harness plug P101. Failure to install the Dummy Plug will prevent
transmitting from all transceivers connected to the CC450.
Ensure proper antenna ground plane and sufficient antenna spacing between
transceivers that will be used in RELAY operation. If enough power is
transmitted from an adjacent antenna to the receiving transceiver's antenna, the
receiver may stop functioning. Spurious receiver responses from transceivers
with weak front ends, such as handheld units, will also be minimized with proper
ground plane and antenna spacing.
2.4.3

Cabling and Wiring

All wire shall be selected in accordance with the original aircraft manufacturer's Maintenance Instructions
or AC43.13-1B Change 1, Paragraphs 11-76 through 11-78. Unshielded wire types shall qualify to
MIL-W-22759 as specified in AC43.13-1B Change 1, Paragraphs 11-85, 11-86, and listed in Table 11-11.
For shielded wire applications, use Tefzel MIL-C-27500 shielded wire with solder sleeves (for shield
terminations) to make the most compact and easily terminated interconnect. Follow the connector map in
Section 2.7 as required.
Coaxial cable shall be selected in accordance with MIL-C-17 unless otherwise specified. Do not use coax
cable with PVC insulation. Teflon dielectric cable is encouraged at or above VHF frequencies or where
cable runs exceed 8 feet. Note that at VHF frequencies, cables losses due to long cable runs and tight
bends may reduce the ERP (Equivalent Radiated Power) by greater than 50%.
Allow 3" from the end of the shielded wiring to the shield termination to allow the connector hood to be
easily installed. Reference the interconnect drawing in Section 2.7 for shield termination details. Note
that the hood is a "clamshell" hood, and is installed after the wiring is complete. Aircraft harnessing shall
permit the unit to be lowered from the panel for easy access to all side adjustments. Do NOT mount the
unit until all adjustments have been performed.
Maintain wire segregation and route wiring in accordance with the original aircraft manufacturers
Maintenance Instructions. Coaxial cables shall be routed separately from existing wire bundles in the
aircraft to minimize electromagnetic coupling effects.
May 5, 2012 Rev: 2.00
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
CC450-0V2 Communications Controller
SM16 Installation and Operation Manual
CAUTION:
CAUTION:
CAUTION:
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