Space

For easy maintenance, follow these guidelines:

Installation method	Space requirements
Workbench-mounting	Width of the aisle: ≥ 0.8 m (2.62 ft) Clearance between the rack and walls or other devices: ≥ 0.8 m (2.62 ft)
Rack-mounting	Clearance between the rack and walls or other devices: ≥ 1.0 m (3.28 ft) Equipment room height: ≥ 3 m (9.84 ft)

IMPORTANT:

Follow the rack clearance requirements to make sure the switch does not block the rack doors.

HP recommends that you use a rack with a depth of 1.2 m (3.94 ft) for rack-mounting the switch. For the chassis space requirements and rack clearance requirements, see Table 6, Figure 5, Figure 6, and Figure 7. For more information about switch dimensions, see "Appendix A Chassis views and technical specifications."

Table 6: Rack mounting space requirements

Model	Chassis space requirements	Minimum rack clearance requirements
12508E/12518E AC	Height: 12508E: 975 mm (38.39 in)/22 RU 12518E: 1686 mm (66.38 in)/38 RU Width: 442 mm (17.40 in) Depth: 859 mm (33.82 in) on switches installed with cable management brackets 913 mm (35.94 in) on switches installed with expansion cable management brackets	Distance between the front rack post and the inner side of the front door: 100 mm (3.94 in) on switches installed with cable management brackets 154 mm (6.06 in) on switches installed with expansion cable management brackets Distance between the front rack post and inner side of the rear door: 769 mm (30.28 in) (Including the space for cabling power cords.)
12508E/12518E DC	Height: 12508E: 975 mm (38.39 in)/22 RU 12518E: 1686 mm (66.38 in)/38 RU Width: 442 mm (17.40 in) Depth: 759 mm (29.88 in) on switches installed with cable management brackets 813 mm (32.01 in) on switches installed with expansion cable management brackets	Distance between the front rack post and the inner side of the front door: 100 mm (3.94 in) on switches installed with cable management brackets 154 mm (6.06 in) on switches installed with expansion cable management brackets Distance between the front rack post and inner side of the rear door: 709 mm (27.91 in) (Including the space for cabling power cords.)