Model

S2720-28TP-PWR-EI

Memory (RAM)

512 MB

Flash

512 MB in total. To view the available flash memory size, run the display version command.

Mean time between failures (MTBF)

40 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 (H x W x D)

Basic dimensions (excluding the parts protruding from the body): 43.6 mm x 442.0 mm x 314.8 mm (1.72 in. x 17.4 in. x 12.39 in.)

Maximum dimensions (the depth is the distance from ports on the front panel to the parts protruding from the rear panel): 43.6 mm x 442.0 mm x 323.8 mm (1.72 in. x 17.4 in. x 12.75 in.)

Weight (including package)

5.4 kg (11.91 lb)

Stack ports

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)

Not providing the PoE function: 37.8 W

100% PoE loads: 444.9 W (system power consumption: 75.3 W, PoE: 369.6 W)

Typical power consumption (30% of traffic load)

·         Tested according to ATIS standard

·          EEE enabled

·          No PoE power consumption

25 W

Operating temperature

0°C to 45°C (32°F to 113°F) at an altitude of 0-1800 m (0-5906 ft.)

Short-term operating temperature

-5°C to +55°C (23°F to 131°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)

< 48.6 dB(A)

Relative humidity

5% to 95%, noncondensing

Operating altitude

0-5000 m (0-16404 ft.)

Certification

EMC certification

Safety certification

Manufacturing certification