Sun Microsystems CP3240 manual Electrical and Environmental, Absolute Maximum Ratings

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-2for normal operating conditions.

TABLE A-1Absolute 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

A.1.2 Normal Operating Ranges

TABLE A-2Normal 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*	-5˚ to +55˚ Celsius
• from 1800m up to 4000m above sea level**	-5˚ to +40˚C
Operating humidity	<85% at 40˚ Celsius
Idle power consumption (without links)	45W
Maximum power consumption with 15W RTM and	100W
no AMCs
Maximum power consumption with 15W RTM and	200W
100W shared for all AMC sites)

*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.

A-2Sun Netra CP3240 Switch Installation Guide • September 2009