IBM SAN40B-4 User Guide - Page 60

Environmental, requirements

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Table 11. Facility requirements (continued) Type Thermal Cabinet (when rack-mounted) Requirements v Air flows from the non-port side to the port side. A minimum air flow of 47 cubic feet/minute (79.8 cubic meters/hour) available in the immediate vicinity 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 v One rack unit in a standard EIA 48.3 cm (19-in.) 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 must not exceed the cabinet's weight limits v The cabinet must be secured to ensure stability in case of unexpected movement, such as an earthquake Environmental requirements Table 12 lists the acceptable environment for both operating and nonoperating conditions. Table 12. Environmental requirements Condition Acceptable range during operation Acceptable range during non-operation Temperature 0° to 40° C (32° to 104° F) -25° to 70°C (-13° to 158°F) Humidity 10% to 85% RH noncondensing, at 40°C 10% to 90% RH noncondensing, (104° F), with maximum gradient of 10% at 70° C (158° F) per hour Altitude 0 to 3 km (9,842 ft) above sea level 0 to 12 km (39,370 ft) above sea level Shock 20 G, 6 ms duration, half sine wave 33 G, 11 ms duration, half sine Vibration 0.5 G, 0.4 grms random, 5-500 Hz 2.0 G, 1.1 grms random, 5-500 Hz 36 SAN40B-4 Installation, Service, and User's Guide

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Table
11.
Facility
requirements
(continued)
Type
Requirements
Thermal
v
Air
flows
from
the
non-port
side
to
the
port
side.
A
minimum
air
flow
of
47
cubic
feet/minute
(79.8
cubic
meters/hour)
available
in
the
immediate
vicinity
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
48.3
cm
(19-in.)
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
must
not
exceed
the
cabinet’s
weight
limits
v
The
cabinet
must
be
secured
to
ensure
stability
in
case
of
unexpected
movement,
such
as
an
earthquake
Environmental
requirements
Table
12
lists
the
acceptable
environment
for
both
operating
and
nonoperating
conditions.
Table
12.
Environmental
requirements
Condition
Acceptable
range
during
operation
Acceptable
range
during
non-operation
Temperature
0°
to
40°
C
(32°
to
104°
F)
-25°
to
70°C
(-13°
to
158°F)
Humidity
10%
to
85%
RH
noncondensing,
at
40°C
(104°
F),
with
maximum
gradient
of
10%
per
hour
10%
to
90%
RH
noncondensing,
at
70°
C
(158°
F)
Altitude
0
to
3
km
(9,842
ft)
above
sea
level
0
to
12
km
(39,370
ft)
above
sea
level
Shock
20
G,
6
ms
duration,
half
sine
wave
33
G,
11
ms
duration,
half
sine
Vibration
0.5
G,
0.4
grms
random,
5–500
Hz
2.0
G,
1.1
grms
random,
5–500
Hz
36
SAN40B-4
Installation,
Service,
and
User’s
Guide