Dell E521 Owner's Manual - Page 110

Power, Physical, Environmental, Controls and Lights, Product Information, Guide

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Controls and Lights (continued) Rear of computer: Link integrity light (on integrated network adapter) Network activity light (on integrated network adapter) green light - A good connection exists between a 10 Mbps network and the computer. orange light - A good connection exists between a 100 Mbps network and the computer. off (no light) - The computer is not detecting a physical connection to the network. yellow blinking light Power DC power supply: Wattage 305 W Maximum heat dissipation 1041 BTU/hr NOTE: Heat dissipation is calculated by using the power supply wattage rating. Voltage (see the safety instructions 90 to 135 V and 180 to 265 V at 50/60 Hz located in the Product Information Guide for important voltage setting information) Backup battery 3-V CR2032 lithium coin cell Physical Height Width Depth Weight 41.4 cm (16.3 inches) 18.8 cm (7.4 inches) 45.7 cm (18.0 inches) 12.7 kg (28.0 lb) Environmental Temperature: Operating Storage Relative humidity 10° to 35°C (50° to 95°F) -40° to 65°C (-40° to 149°F) 20% to 80% (noncondensing) 110 Appendix

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110
Appendix
Rear of computer:
Link integrity light (on integrated
network adapter)
green light — A good connection exists between a 10 Mbps
network and the computer.
orange light — A good connection exists between a 100 Mbps
network and the computer.
off (no light) — The computer is not detecting a physical
connection to the network.
Network activity light (on
integrated network adapter)
yellow blinking light
Power
DC power supply:
Wattage
305 W
Maximum heat dissipation
1041 BTU/hr
NOTE:
Heat dissipation is calculated by using the power supply
wattage rating.
Voltage (see the safety instructions
located in the
Product Information
Guide
for important voltage setting
information)
90 to 135 V and 180 to 265 V at 50/60 Hz
Backup battery
3-V CR2032 lithium coin cell
Physical
Height
41.4 cm (16.3 inches)
Width
18.8 cm (7.4 inches)
Depth
45.7 cm (18.0 inches)
Weight
12.7 kg (28.0 lb)
Environmental
Temperature:
Operating
10° to 35°C (50° to 95°F)
Storage
–40° to 65°C (–40° to 149°F)
Relative humidity
20% to 80% (noncondensing)
Controls and Lights
(continued)