Dell Precision T3500 (Early 2009) - Manual (Page 12)

Drive activity light
Green light . A blinking green light indicates the computer
is reading data from or writing data to the SATA hard
drive or CD/DVD.
Network link light
Green light . Solid green indicates a connection to an
active network
Off (no light) . System is not connected to a network
Back of the computer:
Link integrity light (on integrated
network adapter)
Green . A good connection at 10Mbs exists between the
network and the computer.
Orange . A good connection at 100Mbs exists between
the network and the computer.
Yellow . A good connection at 1000Mbs exists between
the network and the computer.
Off . 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
525 W
Maximum heat dissipation (MHD)
1194 BTU/hr
Voltage
115/230 VAC, 50/60 Hz, 6.0/3.0 A
Coin-cell battery 3 V CR2032 lithium coin cell
Physical
Height 44.8 cm (17.6 inches)
Width 17.2 cm (6.8 inches)
Depth 46.8 cm (18.4 inches)
Weight 17.3 kg (38.0 lb)
Environmental
Temperature range:
Operating 10° to 35°C (50° to 95°F)
Storage -40° to 65°C (-40° to 149°F)
Relative humidity (maximum): 20% to 80% (noncondensing)
Maximum vibration (using a random-vibration
spectrum that simulates user environment):
Operating 5 to 350 Hz at 0.0002 G²/Hz
Storage 5 to 500 Hz at 0.001 to 0.01 G²/Hz
Maximum shock (measured with hard drive in head-
parked position and a 2-ms half-sine pulse):
Operating 40 G +/- 5% with pulse duration of 2 msec +/- 10%
(equivalent to 51 cm/sec [20 in/sec])
Storage 105 G +/- 5% with pulse duration of 2 msec +/- 10%
(equivalent to 127 cm/sec [50 in/sec])
Altitude (maximum):
Operating -15.2 to 3048 m (-50 to 10,000 ft)
Storage -15.2 to 10,668 m (-50 to 35,000 ft)
Airborne contaminant level G2 or lower as defined by ISA-S71.04-1985