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A-2 Sun Netra CP3240 Switch Installation Guide • September 2009
A.1 Electrical and Environmental
The following sections provide tables and illustrations showing the electrical and
environmental specifications.
A.1.1 Absolute Maximum Ratings
The following values are stress ratings only. Do not operate at these maximums. See
"Section A.1.2, “Normal Operating Ranges” on page A-2 for normal operating
conditions.
A.1.2 Normal Operating Ranges
*The MTBF will be significantly reduced if operated above 45˚ C for more than 96 consecutive hours.
**The MTBF will be significantly reduced if operated above 30˚ C for more than 96 consecutive hours.
TABLE A-1
Absolute Maximum Electrical and Temperature Ratings
Supply Voltage 48V 0 VDC to -75VDC.
Storage Temperature: -40˚ to +85˚ Celsius
Non-Condensing Relative Humidity: <95% at 40˚ Celsius
TABLE A-2 Normal Operating Electrical and Temperature Ratings
Description Range
Nominal operating voltage -36 VDC to -72VDC
Operating temperatures:
• 60m below sea level up to 1800m above sea level*
• from 1800m up to 4000m above sea level**
-5˚ to +55˚ Celsius
-5˚ to +40˚C
Operating humidity <85% at 40˚ Celsius
Idle power consumption (without links) 45W
Maximum power consumption with 15W RTM and
no AMCs
100W
Maximum power consumption with 15W RTM and
100W shared for all AMC sites)
200W