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Description
Item
3Com
Baseline
Switch
2920-SFP
Plus
3Com
Baseline
Switch
2928-SFP
Plus
3Com
Baseline
Switch
2952-SFP
Plus
3Com
Baseline
Switch
2928-PWR
Plus
3Com
Baseline
Switch
2928-HPWR
Plus
AC
Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz
Maximum voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz
Inp
ut
volt
ag
e
RP
S
DC
—
Use the
external RPS
unit provided
by 3Com only,
with the rated
voltage
ranging from
–52 VDC to
–55 VDC
Supported
RPS unit
— RPS1000-A3
Power
consumpti
on
11.9W 13.4W 25.7W 25.0W
AC: 45.6W
DC: 27.5W
Power
consumpti
on (full
configurati
on)
22.4 W 31.5 W 55.4 W
255 W (85 W
for system
power
consumption
and 170 W for
PoE power
consumption)
AC power
input: 523 W
(158 W for
system power
consumption
and 365 W for
PoE power
consumption)
DC power
input: 832 W
(92 W for
system power
consumption
and 740 W for
PoE power
consumption)
Operating
temperatu
re
0°C to 45°C (32°F to 113°F)
Operating
humidity
(nonconde
nsing)
10% to 90%