3com 4005 Istruzione Sull'Installazione
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HAPTER
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EQUIREMENTS
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PECIFICATIONS
Power Requirements
This section outlines the power requirements for the Switch 4005 300-watt AC
power supply (Model Number 3C16822). Table 3 lists power specifications for the
chassis.
power supply (Model Number 3C16822). Table 3 lists power specifications for the
chassis.
The power supplies are autosensing; that is, a power supply can automatically
sense the type of input voltage to which it is being connected at the electrical
outlet.
sense the type of input voltage to which it is being connected at the electrical
outlet.
If a power supply overheats, it shuts itself off.
Power Cords
One power cord per power supply is required. If you have two power supplies
installed in the chassis, 3Com recommends that you connect them to separate,
dedicated power outlets. The power cord that you require depends on your
country location. The correct power cord should be in your chassis shipping box.
If you do not have the correct power cord, contact your supplier.
installed in the chassis, 3Com recommends that you connect them to separate,
dedicated power outlets. The power cord that you require depends on your
country location. The correct power cord should be in your chassis shipping box.
If you do not have the correct power cord, contact your supplier.
Safety Information
This section lists warning notices to read before you install the Switch 4005 and its
components.
components.
WARNING:
The Switch 4005 chassis and its components must be installed,
maintained, or replaced only by trained service personnel. This guide assumes that
the network administrator has a working knowledge of local area network (LAN)
operations. Furthermore, this guide assumes that the network administrator has
obtained appropriate technical training and experience to perform tasks in service
access areas of network equipment, to be aware of electrical hazards that exist in
performing these tasks, and to take steps that minimize the danger to themselves
or other persons. If you have questions on installation tasks, contact your network
supplier or 3Com technical support. For contact information, see Appendix A.
the network administrator has a working knowledge of local area network (LAN)
operations. Furthermore, this guide assumes that the network administrator has
obtained appropriate technical training and experience to perform tasks in service
access areas of network equipment, to be aware of electrical hazards that exist in
performing these tasks, and to take steps that minimize the danger to themselves
or other persons. If you have questions on installation tasks, contact your network
supplier or 3Com technical support. For contact information, see Appendix A.
WARNING: To maintain proper cooling in the chassis and maintain safety
compliance, make certain that blank faceplates cover any empty module slots or
power supply slots.
compliance, make certain that blank faceplates cover any empty module slots or
power supply slots.
WARNING: Hazardous energy levels exist inside of the Switch. Do not place hands
or objects into the switch or touch components on an inserted module.
or objects into the switch or touch components on an inserted module.
WARNING: Safety regulations state that the selected table, shelf, or rack must be
able to support at least three times the weight of a fully loaded Switch. A fully
loaded Switch 4005 chassis weighs approximately 20.6 kg (45.5 lb). Therefore,
the selected table or shelf must support at least 61.8 kg (136.5 lb).
able to support at least three times the weight of a fully loaded Switch. A fully
loaded Switch 4005 chassis weighs approximately 20.6 kg (45.5 lb). Therefore,
the selected table or shelf must support at least 61.8 kg (136.5 lb).
Table 3 Switch 4005 Chassis Power Specifications
Total power consumption
300 watts, 1023 BTU/hour
Output voltage
+5 V @ 53A,
+12 V @ 3A
+12 V @ 3A
Input voltage range
United States — 100 to 120 VAC
International — 200 to 240 VAC
Inrush current
6 A
Input frequency
50-60 Hz