Huawei S1720-28GWR-4P 24 Port Gigabit Management Switch with 4 SFP Port

Memory (RAM)

512 MB

Flash

512 MB in total, 240 MB available for customers

Mean time between failures (MTBF)

45 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 224.8 mm (1.72 in. x 17.40 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 17.40 in. x 9.20 in.)

Weight (including packaging)

3.9 kg (8.6 lb)

Stack ports

Not supported

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)

20.2 W

Typical power consumption (30% of traffic load) Tested according to ATIS standard EEE enabled No PoE power consumption

16.1 W

Operating temperature

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

When the altitude is 1800-5000 m (5906-16404 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 or longer transmission distances.

Short-term operating temperature

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

NOTE:

When the altitude is 1800-5000 m (5906-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.).

The equipment can operate beyond the normal operating temperature range for a short-term period, but the following conditions must be met: The equipment operates at a temperature of over 45°C (113°F) consecutively for at most 96 hours in one year. The equipment operates at a temperature of over 45°C (113°F) for a total of no more than 360 hours in one year. The equipment operates at a temperature of over 45°C (113°F) for no more in 15 times in one year. The equipment may be damaged or experience unexpected exceptions if any of the preceding limits is exceeded.

The equipment cannot start when the temperature is lower than 0°C (32°F). The maximum distance of optical modules used in these conditions cannot exceed 10 km.

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

Part number

S1720-28GWR-4P: 98010580 S1720-28GWR-4P-E: