IBM LCM8, Инструкция по установке и эксплуатации

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Chapter 2: Installation 9
• Elevated operating ambient temperature – If the equipment is installed in a closed or multi-unit
rack assembly, the operating ambient temperature of the rack environment might be greater
than room ambient temperature. Install the equipment in an environment compatible with the
operating temperature.
• Reduced air flow – In the rack, the rate of air flow required for safe operation of the equipment
must not be compromised.
• Mechanical loading – Avoid a potentially hazardous condition caused by uneven mechanical
loading by carefully mounting the equipment in the rack.
• Circuit overloading – When connecting the equipment to the supply circuit, consider the effect
that overloading of the circuits might have on overcurrent protection and supply wiring.
Consider the equipment nameplate ratings when addressing this concern.
• Reliable earthing – Maintain reliable earthing of rack-mounted equipment. Pay particular
attention to supply connections other than direct connections to the branch circuit, such as the
use of power strips.
• Do not mount the switch with the rear panel facing in the downward position.
To install the
switch vertically in the side of the rack
:
Figure 2.2: Vertical rack mount assembly
1. Remove the screws from each side of the switch.
2. Line up the small holes of the L-shaped brackets with the screw holes in the switch.
3. With a Phillips screwdriver, fasten the mounting brackets to the switch using two #8 32 x 5/16-
inch pan-head screws on each side.
4. Mount the switch assembly to the rack by matching the long slots on each bracket to a set of
holes on the rack. Next, insert a combination hex-head screw through the slots in the bracket
and the holes in the rack. Cap the screw with a hex serrated flange nut and tighten.
The mounting holes on the upper and lower side braces in a rack side compartment must be
between 50.8-cm (20.0-in.) and 57.3-cm (22.6-in.) apart. If the rack has movable side braces,
refer to the rack documentation for information about relocating side braces if they are not
already spaced for this installation.