temperature range exceeds the operating ranges of the components, the
LEDs, error messages, and Fabric Watch alerts indicate a problem. Enter the
tempShow or Fabric Watch commands to view temperature status.
Facility requirements
To ensure correct operation of the switch, the facility where the switch is in use
must meet the requirements listed in Table 11.
Table 11. Facility requirements
Type Requirements
Electrical
v Primary AC input 100-240 VAC, 2.0A,
47-63 Hz; switch autosenses input voltage
v Adequate supply circuit, line fusing, and
wire size, as specified by the electrical
rating on the switch nameplate
v Correctly wired primary outlet, with
circuit protected by a circuit breaker and
grounded in accordance with local
electrical codes
Thermal
v A minimum air flow of 24 cubic ft/min
available to the air intake vents on the
nonport side of the switch.
v Ambient air temperature not exceeding
40° C (104° F) while the switch is
operating
v At a minimum, adequate cooling requires
that you install the switch with the
nonport side, which contains the air
intake vents, facing the cool-air aisle
v All equipment in the rack should force air
in the same direction to avoid intaking
exhaust air
v Ensure that airflow and temperature
requirements are met on an ongoing basis,
particularly if the switch is installed in a
closed or multicabinet assembly
Cabinet (when rack-mounted)
v One rack unit in a standard EIA 19-in.
(48.3 cm) cabinet
v All equipment in cabinet grounded
through a reliable branch circuit
connection and maintain ground at all
times. Do not rely on a secondary
connection to a branch circuit, such as a
power strip
v Additional weight of switch not to exceed
the cabinet’s weight limits
v Cabinet secured to ensure stability in case
of unexpected movement, such as an
earthquake
34 SAN24B-4 Express Installation, Service, and User Guide
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