Model

S2720-28TP-EI-AC

Memory (RAM)

256 MB

Flash

200 MB

Mean time between failures (MTBF)

44.3 years

Mean time to repair (MTTR)

2 hours

Availability

> 0.99999

Service port surge protection

Common mode: ±6 kV

Power supply surge protection

±6 kV in differential mode, ±6 kV in common mode

Dimensions (H x W x D)

43.6 mm x 442.0 mm x 220.0 mm (1.72 in. x 17.4 in. x 8.7 in.)

Weight (with packaging)

3 kg (6.62 lb)

Stack ports

Two uplink 1000BASE-X optical ports

RTC

Not supported

RPS

Not supported

PoE

Not 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, 100% PoE loads, full speed of fans)

15.7 W

Typical power consumption (30% of traffic load)

·          Tested according to ATIS standard

·         No PoE power consumption

15.5 W

Operating temperature

-5°C to +50°C (23°F to 122°F) at an altitude of 0-1800 m (0-5906 ft.)

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.)

Certification

EMC certification

Safety certification

Manufacturing certification