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Chapter 2 Installing Trays 27
Attaching the Rails to a Cabinet
Depending on the type of cabinetin which you will install the tray, use one of the
following procedures to attach the rails:
■ “Attaching the Universal Rail Kit to a Standard Sun or 19-Inch Cabinet With
Threaded Cabinet Rails” on page 27
■ “Attaching the Universal Rail Kit to a Standard 19-Inch Cabinet With Unthreaded
Cabinet Rails” on page 31
Each tray requires two standard mounting rack units (2RU) of vertical space in the
cabinet. Each standard mounting rack unit (RU) has three mounting holes in the left
and right cabinet rails. The top mounting hole of the lower RU is always closest to
the bottom mounting hole of the upper RU, hence the divsion between RUs on a
cabinet rail is between the two closeest mounting holes in a grouping.
The universal rails have an adjustable depth of 24” to 34”.
Attaching the Universal Rail Kit to a Standard
Sun or 19-Inch Cabinet With Threaded Cabinet
Rails
This procedure describes the steps to attach the universal rail kit to:
■ All standard Sun cabinets, including the Sun Rack 900/1000 cabinets
■ Sun StorageTek Expansion cabinets
■ All 19-inch wide, 4-post EIA-compatible racks and cabinets with the following
cabinet rail types:
■ M5 threaded
■ M6 threaded
■ 10-32 threaded
■ 12-24 threaded
■ circular unthreaded
1. To attach the universal rail kit to a cabinet withthese cabinet rail typesPosition
the front flange of the left universal rail behind the left front cabinet rail
(
FIGURE 2-2).