Site Preparation
7705 SAR-8 Installation Guide Page 71
Installation Locations
The 7705 SAR-8 is intended to be installed in facilities that provide weather protection and a
temperature-controlled environment. The facilities provide protection from mold growth,
pest incursion, and precipitation.
Airflow on the 7705 SAR-8 is defined as EC Class (S) SR-SL per GR3028. For proper
thermal performance, the following conditions must be met.
• The rack must be constructed using channel or angle rack uprights that are at least
1.25 in. (3.2 cm) deep, 3 in. (7.6 cm) wide (maximum), and oriented away from the
chassis such that no solid metal from the uprights is located immediately adjacent to
the chassis side walls (see Figure 17).
Example: Telect 02008-02011 Series or Newton 0040140XXX Relay Racks.
• The rack must not be an unequal flange rack that has solid walls located
immediately adjacent to the chassis side walls. This will cause thermal failure.
Example: Telect 02033-02036 series.
• For seismic applications, the rack must be a Telect Global Seismic Frame
(GS series).
• The rail mounting holes in the equipment rack must align with the mounting holes
on the chassis mounting brackets. The 7705 SAR-8 mounting brackets are factory-
installed for a NEBS mount in a 19-inch rack.
Follow the equipment rack manufacturer’s instructions for proper rack installation.
Required tools:
• #2 Phillips screwdriver
• flathead screwdriver
• anti-static bags, mats, and packaging
• ESD wrist strap
Warning: Follow the equipment rack manufacturer’s instructions for proper rack installation.
Failure to comply with the requirements and the location requirements outlined in this section
and in
Chassis Location Requirements (next section) will impede proper airflow and will
result in the system overheating.
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