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Thiết bị chuyển mạch Switch huawei S5720S-12TP-PWR-LI-AC

S5720S-12TP-PWR-LI-AC Specification
Memory (RAM)	512 MB
Flash	240 MB
Mean time between failures (MTBF)	23.8 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)	320.0 mm x 220.0 mm x 43.6 mm (12.6 in. x 8.7 in. x 1.72 in.)
Weight (including packaging materials)	3 kg (6.62 lb)
Stack ports	Eight 10/100/1000BASE-T ports and two 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)	Without PoE: 15.61 W 100% PoE loads: 160.5 W (system power consumption: 37.3 W, PoE: 123.2 W)
Typical power consumption (30% of traffic load) Tested according to ATIS standard EEE enabled No PoE power consumption	14.57 W
Operating temperature	0°C to 45°C (32°F to 113°F) at an altitude of 0-1800 m (0-5096 ft.) NOTE: When the altitude is 1800-5000 m (5096-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.). The operating temperature of the switch is 0°C to 40°C (32°F to 104°F) when it uses GE SFP optical modules with 40 km transmission distances.
Storage temperature	-40°C to +70°C (-40°F to +158°F)
Noise under normal temperature (27°C, sound power)	Noise-free (no fans)
Relative humidity	5% to 95%, noncondensing
Operating altitude	0-5000 m (0-16404 ft.)