3Com NETBuilder II DPE 80, Manual, Page: 21 / 32

Physical Specifications 3-3
Buttons There are two recessed buttons on the module. The RESET button resets the
system, the same as pressing the two outer buttons on the chassis LCD control
panel or turning the power off then on. The ATTENTION button is for 3Com use
only.
LCD Control Panel The LCD control panel on the front of the chassis consists of four buttons below
the LCD. To reset the system, you simultaneously press the two outer buttons
marked RESET. The two inner buttons marked ATTENTION are for internal 3Com
use only. If you accidentally press the ATTENTION buttons, you must reset the
system to resume operation.
Physical Specifications
The following tables list physical description and electrical and environmental
requirements for the DPE module.
Table 3-3 Physical Description
Length Width Height Weight
9.3 in 10.8 in 1 in 1.4 lbs
23.8 cm 27.7 cm 2.6 cm 0.6 kg
Table 3-4 Maximum Current Consumption
+5 Volts +12 Volts -12 Volts
5.101 VDC @ 2.32 amp 11.969 VDC @ 0.011 amp -12.187 VDC @ 0.008 amp
Table 3-5 Environmental Requirements
Requirement
Parameter Minimum Maximum
Temperature:
Operating 41˚F (5˚C) 104˚F (40˚C)
Nonoperating –4˚F (–20˚C) 140˚F (60˚C)
Altitude:
Operating Sea level 15,000 ft. (4,572 m)
Nonoperating Sea level 40,000 ft. at 32˚F (12,191 m at 0˚C)
Relative humidity:
Operating 20% noncondensing 80% noncondensing
Nonoperating 10% noncondensing 90% noncondensing