Installation Manual

30
CONFIDENTIAL UNDER NON-DISCLOSURE AGREEMENT (NDA)
Rev A1
Document:
WSS 4G Aircraft Installation Manual 750-
00003-00 Reva1.Docx
July -30
2020
3.5.1.3 Antenna Ground Plane Requirements
The WSS 4G system antennas may be mounted to any electrically conductive
airframe panels, such as aluminum or composite-carbon fiber airframe panels, without
the need for additional ground planes to be installed.
Installation of ground planes will be required when mounting to non-conductive
fiberglass panels. Please consult with WSS for ground plane requirements when
mounting antennas on non-conductive surfaces.
3.5.2 ABR Site Selection
Consideration must be given for both the physical mounting location of the chassis, and
the assurance that the chassis will be provided with a suitable airflow around it for
cooling purposes as defined below.
To ensure that the ABR remains within its thermal limits, clearances of approximately 3
inches from the front, 3 inches from the back, and 4 inches from the top should be
maintained. Clearance of at least ¼ inch should be maintained along the sides of the
ABR chassis. Note that there is a fan mounted on the rear surface of the chassis
(opposite side relative to the connector plane) and 3.0 inches of clearance needs to be
maintained to the rear of the fan housing to support air flow and proper thermal
performance of the chassis enclosure.
When selecting a location for the ABR installation, the installer must factor adequate
spacing to accommodate coaxial cable connectors and bend radiuses for cable routing
in all directions from the front panel of the ABR. Please refer to coaxial manufacture for
maximum bend radius specifications and connector dimensions.
3.6 Cabling and Wiring
Reference Section 5, System Interconnects for RF, Power / Control and
Ethernet connectivity diagram and connector assembly instructions.
3.6.1 General
An Electrical Load Analysis must be accomplished by the installer to determine that the
electrical limits of the specific aircraft are not exceeded. The Electrical Load Analysis,
Functional Hazard Assessment and other certification requirements for the aircraft must
remain in compliance.
It is strongly advised that the following criteria be adhered to:
• Ensure that routing of the wiring does not come in contact with sources of heat, RF
or EMI interference.
• Route wiring a safe distance from aircraft control cables.