3Com 7000 manual Thermal, Recommendations, Wiring Closet, Considerations, General, Power and Heat

106APPENDIX C: SITE REQUIREMENTS

■Power requirements: 115-Volts AC power, 15-Amp service receptacles, type N5/15 or NEMA 5-15R (for U.S.) or 220 Volts AC for Europe.

Thermal	This sections contains recommendations for handling the heat generated
Recommendations	by the CoreBuilder 7000 family ATM switch. It is essential that you
	provide a suitable environment for both performance and safety.
General	The following are some general thermal recommendations for the wiring
Recommendations	closet:
	■ Ensure that the ventilation in the wiring closet is adequate to maintain
	a temperature below 40° C (104° F).
	■ During non-business hours, make sure that the ventilation is not shut
	down while a CoreBuilder 7000 family ATM switch remains powered
	up; otherwise, the equipment may overheat.
Power and Heat	The following are power and heat specifications for the CoreBuilder 7000
Specifications	family ATM switch:
	■ Maximum power consumption: 250 Watts
	■ Maximum heat generated: 1724 BTU per hour
	■ Operating temperature: 0° to 40° C (32° to 104° F)
Wiring Closet	The cabling system used at the facility should cover the majority of wiring
Considerations	closet concerns. You may want to consider the following
	recommendations.
	■ Verify that the facility meets all requirements mentioned in the system
	cabling plan.
	■ Ensure that the system is easily accessible for installation and service.
	■ Use AC power, 15-Amp service receptacles, type N5/15 or NEMA
	5-15R for 120Vac.
	■ Select a vinyl floor covering for the wiring closet. (Concrete floors tend
	to accumulate dust, and carpets often cause static electricity.)
	■ Ensure that the wiring closet floor is flat and level. If the floor is not
	level, ensure that the racks are bolted to the floor to prevent them
	from tipping over.