Quantum QXS-312 - Cabinet Height

4 QXS Site Planning Guide
NOTE: Install the applicable storage rack on the cabinet support rails, then install the
chassis/expansion storage unit, and then populate the unit with applicable drives (HDDs or SSDs).
Ensure to place the cabinet in a location that allows sufficient space to maintain and service (remove
and replace parts) the applicable units within the cabinet.
Cabinet Height
Cabinets heights might vary. A common cabinet is 40U high.
• A height of 1U equals 1.75-inches (44.45-mm).
• So, a 40U cabinet will have 70 inches (1778 mm/1.778 km) of storage space.
Figure 4 provides a standard cabinet identifying components (callouts) in the front and rear of the
unit. Callout descriptions are provided below the illustration.
Figure 4 Front and Rear View of Cabinet
1 Ventilation cover 2 Cable access opening
3 Rear plate 4 Support rails
5 Vertical support rails 6 Mounting rails
7 Stability foot 8 Leveling feet (variable adjust)
9 Power distribution 10 AC power entry boxes
11 Front of cabinet 12 Rear of cabinet
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2
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11 12
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