Brocade VDX 8770-4 QuickStart Guide - Manual (Page 12)

12 of 32 Brocade VDX 8770-4 QuickStart Guide
Publication Number: 53-1002554-01
CAUTION
For the NEBS-compliant installation of a Brocade VDX 8770-4 with AC or DC systems, use a ground wire
of at least 2 AWG. The ground wire should have an agency-approved crimped connector (provided with
the device) attached to one end, with the other end attached to building ground. The connector must be
crimped with the proper tool, allowing it to be connected to both ground screws on the enclosure. Before
crimping the ground wire into the provided ground lug, ensure that the bare copper wire has been
cleaned and antioxidant is applied to the bare wire.
Environmental requirements
DANGER
Do not install the router in an environment where the operating ambient temperature might
exceed 40°C (104°F).
Table 4 lists the environmental operating ranges for the Brocade VDX 8770-4. The requirements for non-operating
conditions are also provided for acceptable storage and transportation environments.
NOTE
The 0 ° to 40 ° C (32 ° to 104 ° F) range applies to the ambient air temperature at the air intake vents on the left side
(as you face the port side) and port side of the Brocade VDX 8770-4.
The temperature inside the Brocade VDX 8770-4 can be up to 90° C (194 ° F) for some modules during operation.
Cooling policy is based on a combination of ambient temperature and measured temperature on the modules.
Various combinations will result in an increase in fan speed to create more cooling in the switch.
If a component approaches a critical temperature that will trigger a module shutdown, there will be a WARNING
message in the raslog, followed by a CRITICAL message saying that the module will shut down in two minutes.
Use the show environment command to view temperature status.
TABLE 4 Environmental requirements
Condition Acceptable range during operation Acceptable range during non-operation
Ambient temperature 0
°
to 40
°
C (32
°
to 104
°
F) outside
switch
-25
°
to +70
°
C (-13
°
to 158
°
F) outside
switch
Humidity 5% to 90% 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 (10,000 ft.) above sea level 0 to 12 km (40,000 ft.) above sea level
Shock 20G, 6 ms duration, half-sine wave 33G, 11 ms duration, half-sine wave
Vibration 0.5G p-p, 5-500 Hz at 1.0 octave/minute 2.0G p-p, 5-500 Hz at 1.0 octave/minute
Airflow Maximum: 675 cu ft/min. (1147 cu
m/hr)
Nominal: 200 cu ft/min. (340 cu m/hr None required
Maximum heat
dissipation Up to 6000W or 20,500 BTU/hr Not applicable