3Com NETBuilder II, Installing Instruction, Page: 68 / 82

A-2 A
PPENDIX
A: F
EATURE
S
UMMARY AND
S
PECIFICATIONS
Specifications
This section lists the specifications for each NETBuilder II chassis.
4-Slot Chassis Table A-2, Table A-3, and Table A-4 provide a physical description and electrical
and environmental requirements for the NETBuilder II 4-Slot chassis. Table A-5
lists the maximum current consumption for the floppy disk drive.
* With ejector handles in closed position and without cable strain-relief bracket installed.
† Weight includes installed CEC module and four I/O modules.
®
NETBuilder II
Table A-2 Physical Description of the 4-Slot Chassis
Length
*
Width Height Weight
†
17.0 in 17.4 in 5.4 in 26 lbs
43.2 cm 44.2 cm 13.7 cm 11.8 kg
Table A-3 Electrical Requirements for the 4-Slot Chassis
Parameter Requirement
Input voltage 115/230 VAC 47 to 63 Hz
Input voltage ranges 90 to 132 VAC or
180 to 264 VAC Either range accepted without user switching
Maximum current
consumption 2.1 A @ 115 VAC
1.0 A @ 230 VAC
Fuse: 4 A, 250 V, fast-blow, 5 mm x 20 mm
Input power 242 W
Maximum power
dissipation 125 W
Heat dissipation 826 BTU/hr
Table A-4 Environmental Requirements for the 4-Slot Chassis
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
Table A-5 Maximum Current Consumption of the 4-Slot Chassis Floppy Disk Drive
+5 Volts –5 Volts +12 Volts –12 Volts
0.92 A 0.0 A 0.0 A 0.0 A