Foundry Networks LS 648 Electrical Specifications, Input specifications, Mean Time Before Failure

Hardware Specifications

Table 0.18: Environmental Considerations for Power Supplies

Operating temperature	32° to 110° F, 0° to 45° C
Operating relative	5 – 95%, non-condensing
humidity
Operating altitude	up to 6,600 feet above sea level
Storage temperature	-40°to 158° F, -40°to +70° C
Storage altitude	up to 15,000 feet above sea level
Cooling	internal fan, 28 mm, 9500rpm

Mean Time Before Failure

Table 0.19 provides the intitial MTBF result for the RPS2-EIF (including the Power Supply Unit).

Table 0.19: Mean Time Before Failure Specifiations

Platform	Temperature	System Failure Rate	System MTBF
RPS2-EIF	25° C (76.9° F)	7343.584745	136,173
	50° C (121.9° F)	17,129.130581	58,380

Electrical Specifications

This section lists the electrical specifications for the power supply.

Input specifications

Table 0.20: Input Specifications for Power Supplies

Property	RPS2-EIF
Input voltage range	100 - 240 VAC
Input current	< 10 Amps
Inrush current	60 A

September 2007 © 2007 Foundry Networks, Inc. 2 - 13