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Thiết bị chuyển mạch Switch huawei S5720S-52P-PWR-LI-AC

S5720S-52P-PWR-LI-AC Specification
Memory (RAM)	512 MB
Flash	240 MB
Mean time between failures (MTBF)	38 years
Mean time to repair (MTTR)	2 hours
Availability	> 0.99999
Service port surge protection	Common mode: ±7 kV
Power supply surge protection	±6 kV in differential mode, ±6 kV in common mode
Dimensions (W x D x H)	442.0 mm x 310.0 mm x 43.6 mm (17.4 in. x 12.2 in. x 1.72 in.)
Weight (including packaging materials)	5.9 kg (13.01 lb)
Stack ports	Forty-eight 10/100/1000BASE-T ports and four 1000BASE-X ports
RTC	Not supported
RPS	Not supported
PoE	Supported
Rated voltage range	100 V AC to 240 V AC, 50/60 Hz
Maximum voltage range	90 V AC to 264 V AC, 47 Hz to 63 Hz
Maximum power consumption (100% throughput, full speed of fans)	Without PoE: 61.7 W 100% PoE loads: 461.8 W (system power consumption: 92.2 W, PoE: 369.6 W)
Typical power consumption (30% of traffic load) Tested according to ATIS standard EEE enabled No PoE power consumption	42 W
Storage temperature	-40°C to +70°C (-40°F to +158°F)
Noise under normal temperature (27°C, sound power)	less than 48.3 dBA
Relative humidity	5% to 95%, noncondensing
Operating altitude	0-5000 m (0-16404 ft.)