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Table 33: Rack Requirements and Specifications for a J-EX8216 Switch
Guidelines
Rack Requirement
Use a four-post rack. You can mount the switch on any four-post rack that provides
bracket holes or hole patterns spaced at 1 U (1.75 in./4.44 cm) increments and that
meets the size and strength requirements specified in this table.
A U is the standard rack unit defined in
Cabinets, Racks, Panels, and Associated
Equipment
(document number EIA-310–D) published by the Electronics Industry
Association (
).
You can stack two J-EX8216 switches in a four-post rack that has at least 42 U; if you
install the optional power cord tray, a minimum of 44 U are required. In all cases, the
rack must meet the strength requirements to support the weight of the switch.
Rack type and mounting bracket hole
spacing
•
Ensure that the rack is a 19-in. rack as defined in
Cabinets, Racks, Panels, and
Associated Equipment
(document number EIA-310–D) published by the Electronics
Industry Association (
•
Ensure that the rack is one of the following standard lengths:
•
23.62 in. (600 mm)
•
30.0 in. (762 mm)
•
21.5 in. (546 mm)
•
Ensure that the rack rails are spaced widely enough to accommodate the J-EX8216
switch chassis' external dimensions of 36.5 in. (92.7 cm) height, 17.3 in. (43.9 cm)
width, 26.5 in. (67.3 cm) depth. The outer edges of the front-mounting brackets
extend the width to 19 in. (48.3 cm).
•
The J-EX8216 switch chassis height of 36.5 in. (92.7 cm) is approximately 21 U. If
you install the power cord tray (optional), the chassis and power cord tray consume
22 U.
•
The rack must be strong enough to support the weight of the fully configured switch.
A fully configured J-EX8216 switch weighs up to 486 lb (220 kg). If you stack two
fully configured J-EX8216 switches in one rack, that rack must support up to 972 lb
(440 kg).
•
Ensure that the spacing of rails and adjacent racks allows for the proper clearance
around the switch and rack as specified in “Clearance Requirements for Airflow and
Hardware Maintenance for a J-EX8216 Switch” on page 73.
Rack size and strength
•
Secure the rack to the building structure.
•
If earthquakes are a possibility in your geographical area, secure the rack to the
floor.
•
Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum
stability.
Rack connection to the building
structure
Figure 30 on page 71 shows four-post rack installation of a J-EX8216 switch.
70
Dell PowerConnect J-Series J-EX8216 Ethernet Switch Hardware Guide
Содержание PowerConnect J-8216
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