Environmental Specifications
This subsection provides information about environmental specifications and covers these topics:
• “Heat Dissipation Specifications and Worksheet”
• “Operating Temperature, Humidity, and Altitude”
• “Nonoperating Temperature, Humidity, and Altitude” (page 51)
• “Cooling Airflow Direction” (page 51)
• “Typical Acoustic Noise Emissions” (page 51)
• “Tested Electrostatic Immunity” (page 51)
Heat Dissipation Specifications and Worksheet
Total (BTU/hour)Unit Heat (BTU/hour
with both AC lines
powered)
Unit Heat (BTU/hour
with single AC line
powered)
Number InstalledEnclosure Type
1370012400
c7000
1
12361070IP or Storage CLIM
936869SAS disk enclosure
1112893IOAM
2
1187990Fibre Channel disk
module (FCDM)
3
-150Maintenance switch
(Ethernet)
4
-696Rack-mountedsystem
console with
keyboard and display
1 Decrease the BTU/hour specification by 1730 BTU/hour for each empty NonStop Server Blade slot. For example, a
c7000 that only has four NonStop Server Blades installed would be rated 13700 BTU/hour minus (4 server blades x
1730 BTU/hour) = 6780 BTU/hour.
2 Measured with 10 Fibre Channel ServerNet adapters installed and active.
3 Measured with 14 disk drives installed and active.
4 Maintenance switch has only one plug.
Operating Temperature, Humidity, and Altitude
Maximum Rate of Change
per Hour
Recommended Range
1
Operating Range
1
Specification
9° F (5° C) Repetitive
36° F (20° C) Nonrepetitive
68° to 72° F
(20° to 25° C)
41° to 95° F (5° to 35° C)Temperature (IOAM,
rack-mounted system
console, and maintenance
switch)
0.6° F (1° C) Repetitive
1.6° F (3° C) Nonrepetitive
-50° to 95° F
(10° to 35° C)
Temperature (c7000, CLIMs,
SAS disk enclosure, and
Fibre Channel disk module)
6%, noncondensing40% to 50%, noncondensing15% to 80%, noncondensingHumidity (all except c7000
enclosure)
6%, noncondensing40% to 55%, noncondensing20% to 80%, noncondensingHumidity (c7000 enclosure)
--0 to 10,000 feet (0 to 3,048
meters)
Altitude
2
50 System Installation Specifications
