Model

S5720-56C-PWR-EI-AC1

Memory (RAM)

2 GB

Flash

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

Mean time between failures (MTBF)

51.34 years when no card is configured; 48.63 years when a 2-port 10GE SFP+ interface card is configured; 47.71 years when a 2-port 10GE RJ45 interface card is configured; 47.79 years when a stack card is configured

Mean time to repair (MTTR)

2

Availability

> 0.99999

Service port surge protection

Service ports on front panel: ±6 kV in common mode

Ports on the 2-port 10GE RJ45 rear interface card: ±2 kV in common mode

Power supply surge protection

Using 1000 W AC power modules: ±6 kV in differential mode, ±6 kV in common mode

Using 1150 W AC power modules: ±2 kV in differential mode, ±4 kV in common mode

Dimensions (H x W x D)

Basic dimensions (excluding the parts protruding from the body): 44.4 mm x 442.0 mm x 510.5 mm (1.75 in. x 17.4 in. x 20.1 in.)

Maximum dimensions (the depth is the distance from ports on the front panel to the handle on the rear panel): 44.4 mm x 442.0 mm x 541.1 mm (1.75 in. x 17.4 in. x 21.3 in.)

Weight (with packaging)

10.9 kg (24.03 lb)

Stack ports

Ports on the 2-port 10GE SFP+ rear interface card

Ports on the 2-port 10GE RJ45 rear interface card

Ports on the 2-port QSFP+ rear stack card

RTC

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)

Not providing the PoE function: 91.6 W

100% PoE loads: 1564.8 W (system power consumption: 124.8 W, PoE: 1440 W)

Typical power consumption (30% of traffic load)

·         Tested according to ATIS standard

·         EEE enabled

No PoE power consumption

53.5 W (without subcard)

61.12 W (with 2*10G optical subcards)

65.85 W (2*QSFP+ stack cards)

69.3 W (with 2*10G electrical subcards)

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)

< 61.7 dB(A)

Relative humidity

5% to 95%, noncondensing

Operating altitude

0-5000 m (0-16404 ft.)

Certification

EMC certification

Safety certification

Manufacturing certification