Table 20: Site Electrical Wiring Guidelines
(Connued)
Site Wiring
Factor
Guidelines
Electromagnet
ic
compability
If your site is suscepble to problems with electromagnec compability (EMC), parcularly
from lightning or radio transmiers, seek expert advice.
Strong sources of electromagnec interference (EMI) can cause:
• Destrucon of the signal drivers and receivers in the device,
• Electrical hazards as a result of power surges conducted over the lines into the equipment.
Rack Requirements for an EX4600 Switch
EX4600 Switches are designed to be installed on four-post racks.
Rack requirements consist of:
• Rack type
• Mounng bracket hole spacing
• Rack size and strength
Table 21 on page 52 provides the rack requirements and specicaons for the EX4600 Switch.
Table 21: Rack Requirements for the EX4600 Switch
Rack Requirement Guidelines
Rack type Use a four-post rack that provides bracket holes or hole paerns spaced at 1 U
(1.75 in. or 4.45 cm) increments and that meets the size and strength requirements to
support the weight.
A U is the standard rack unit dened in
Cabinets, Racks, Panels, and Associated
Equipment
(document number EIA-310–D) published by the Electronics Industry
Associaon.
52
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