Kongsberg HPR 400, Руководство по установке

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Installation Manual
5
130314 / F
Procedures
19” rack
Introduction
The 19” rack is normally a free standing unit, designed to hold a
variety of electronic units. The electronic units will normally be
positioned in retractable draws or on shelves, or have runners
attached directly to them to allow their easy withdrawal from
the rack. Some display units, are designed to be bolted directly
into the rack, requiring no further mounting brackets/runners
etc.
The rack will normally be constructed of formed and welded
aluminium struts, and has a rectangular base. The side and rear
panels are often removable to simplify installation and
maintenance, and it is open to the front to allow operation of the
units contained in the rack. The rear panel should have
ventilation outlets to allow cooling air to be circulated around
the units while they are in use.
The rack is normally installed such that it is supported on four
shock absorbers at the floor. Two more shock absorbers are
often located at the upper rear edge of the unit to provide further
support to the top.
It is recommended to install the rack at least 60 cm (2 feet) from
any wall, bulkhead or other unit. This will allow access to the
sides and rear of the unit for installation and maintenance of the
electronic units.
Note
The thickness of some types of cable can make them inflexible.
This can make installation and subsequent maintenance of the
electronic units extremely difficult if the rack is positioned close
against a wall or other unit.
Installing the rack away from a wall or bulkhead will probably
require an extension bracket to be manufactured to support the
upper shock absorbers. This bracket should be run to the closest
convenient solid structure, and should be bolted in at both ends
to enable later alterations/adjustments.