H3C Technologies H3C SR8800 - Manual (Page 36)

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Installation preparation
Confirm the following preparations before starting installation:
• The rack is sturdy and securely grounded.
• There is sufficient clearance (0.8 m/2.62 ft) around the rack for heat dissipation and installation.
• There is no debris inside or around the rack.
Installing slide rails and cage nuts to the rack
Installing slide rails
Before installing the router to the rack, install slide rails to the rack. If the rack has slide rails, skip this
section. Besides slide rails, you can use a rack shelf to support the router. This document describes how
to install slide rails only.
Slide rails or rack shelves are not provided with the router. Prepare them yourself, or order them from
H3C.
The appearance and installation methods of slide rails depend on the slide rail types. The following uses
a 19-inch rack as an example to describe the installation procedures. The height of the front panel of the
rack is a measurement of one rack unit (RU) (44.45 mm, or 1.75 in). As shown in callout 2 in Figure 21 ,
each 1 RU has three holes with center-to-center spacing between the holes of 15.87 mm (0.63 in), 15.87
mm (0.63 in), and 12.70 mm (0.5 in). When installing the slide rails, make sure the bottom edge of the
slide rail aligns with the middle of the narrower metal area between holes.
When you install slide rails, make sure the following requirements are met:
• The slide rails you use are standard accessories.
• The slide rails can support the weight of the router. For the weights of the SR8800 routers, see
"Appendix A Technical specifications."
• The space above the slide rails is greater than the height of the router chassis. For the router
dimensions, see "Appendix A Technical specifications."
To install the slide rails:
1. Mark the positions of the slide rails on the rack.
2. Align the screw holes on the two sides of the slide rails with the corresponding holes on the rack,
and then fasten the screws.
3. Install the other slide rail in the same way. Keep the two slide rails at the same height so that the
router can be placed evenly.