Model

S5720S-28X-SI-DC

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)

100.31 years

Mean time to repair (MTTR)

2

Availability

> 0.99999

Service port surge protection

Common mode: ±6 kV

Power supply surge protection

±1 kV in differential mode, ±2 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 224.8 mm (1.72 in. x 17.4 in. x 8.85 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 233.8 mm (1.72 in. x 17.4 in. x 9.21 in.)

Weight (with packaging)

4.8 kg (10.58 lb)

Stack ports

GE electrical ports and 10GE SFP+ optical ports on the front panel

RTC

Supported

RPS

Supported

PoE

Not supported

Rated voltage range

-48 V DC to -60 V DC

Maximum voltage range

-36 V DC to -72 V DC

Maximum power consumption (100% throughput, full speed of fans)

33 W

Typical power consumption (30% of traffic load)

·         Tested according to ATIS standard

·         EEE enabled

·         No PoE power consumption

21.9 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 +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)

< 50.2 dB(A)

Relative humidity

5% to 95%, noncondensing

Operating altitude

0-5000 m (0-16404 ft.)

Certification

EMC certification

Safety certification

Manufacturing certification