Huawei S2750 Series Hardware Description page 29

S2750 Series Ethernet Switches
Hardware Description
Item
Mean time between
failures (MTBF)
Mean time to repair
(MTTR)
Availability
Surge
protecti
on
Dimensions (W x D
x H)
Weight
Stack port
Maximum stack
bandwidth
(bidirectional)
RPS
PoE
AC
input
voltage
Issue 04 (2014-03-20)
Description
l S2750-28TP-EI-AC: 44.3 years
l S2750-20TP-PWR-EI-AC: 78.68 years
l S2750-28TP-PWR-EI-AC: 78.29 years
l S2751-28TP-PWR-EI-AC: 79.94 years
2 hours
> 0.99999
Service Common mode: ±6 kV
port
protectio
n
Power l S2750-28TP-EI-AC: ±6 kV in differential mode; ±6 kV in common
supply mode
protectio
l S2750-20TP-PWR-EI-AC: ±6 kV in differential mode; ±6 kV in
n
common mode
l S2750-28TP-PWR-EI-AC: ±6 kV in differential mode; ±6 kV in
common mode
l S2751-28TP-PWR-EI-AC: ±2kV in differential mode; ±4kV in
common mode
l S2750-28TP-EI-AC: 442.0 mm x 220.0 mm x 43.6 mm
l S2750-20TP-PWR-EI-AC: 442.0 mm x 310.0 mm x 43.6 mm
l S2750-28TP-PWR-EI-AC: 442.0 mm x 310.0 mm x 43.6 mm
l S2751-28TP-PWR-EI-AC: 442.0 mm x 310.0 mm x 43.6 mm
≤ 5 kg
Two uplink 1000BASE-X optical ports
10 Gbit/s
Not supported
Supported by PWR models
Rated 100 V AC to 240 V AC, 50/60 Hz
voltage
range
Maximu 90 V AC to 264 V AC; 47 Hz to 63 Hz
m
voltage
range
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