Huawei CE5855-24T4S2Q-EI Switch

Physical specifications

• Dimensions (W x D x H): 442.0 mm x 420.0 mm x 43.6 mm (17.4 in. x 16.5 in. x 1.72 in.)
• Weight (with two power modules and two fan modules, calculated based on the heaviest model if multiple models are supported): 8.1 kg (17.86 lb)

Environment parameters

Temperature

• Operating temperature: 0°C to 40°C (32°F to 104°F) at altitude of 0-1800 m (0-5906 ft.)

  NOTE:

  When the altitude is 1800-5000 m (5096-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.).

• Storage temperature: -40°C to +70°C (-40°F to +158°F)

Relative humidity

5% RH to 95% RH, noncondensing

Altitude

< 5000 m (16404 ft.)

Noise (sound pressure, 27°C)

• Back-to-front airflow: < 48 dBA
• Front-to-back airflow: < 51 dBA

Power specifications

Power source type

AC/DC

AC power input

• Rated input voltage range: 100 V AC to 240 V AC, 50/60 Hz
• Maximum input voltage range: 90 V AC to 264 V AC, 47 Hz to 63 Hz

DC power input

• Rated voltage range: -48 V DC to -60 V DC
• Maximum voltage range: -38.4 V DC to -72 V DC

High-voltage DC power input

Not supported

Rated input current

• 150 W AC power (ES0W2PSA0150): 3 A (100 V AC to 240 V AC)
• 350 W DC power (PDC-350WA series): 11 A (-48 V DC to -60 V DC)

Chassis power consumption

Maximum power consumption

75 W

Typical power consumption

48 W (100% throughput, 3 m Ethernet cables on 24 ports and SFP+ cables on 4 ports and QSFP+ cables on 2 ports, double power modules)

Chassis heat dissipation

Maximum heat dissipation

256 BTU/hr

Typical heat dissipation

164 BTU/hr (100% throughput, 3 m Ethernet cables on 24 ports and SFP+ cables on 4 ports and QSFP+ cables on 2 ports, double power modules)

Surge protection

Ethernet electrical ports: 2 kV in common mode

Power module:

• AC: 6 kV in common mode and 6 kV in differential mode
• DC: 4 kV in common mode and 2 kV in differential mode

Heat dissipation

Heat dissipation mode

Air cooling

Airflow

Front-to-back or back-to-front, depending on the fan modules and power modules

Reliability and availability

Power module backup

1+1 backup

Fan module backup

1+1 backup not supported

NOTE:

A CE5855EI chassis uses two fan modules, with each fan module containing two fans. The four fans in the chassis work in 3+1 backup mode.

Hot swap

Supported by all power modules and fan modules

Mean time between failures (MTBF)

65.62 years

Mean time to repair (MTTR)

1.77 hours

Availability

0.99999690870

Technical specifications

Processor

1 GHz, dual-core

DRAM Memory

2 GB

NOR Flash

16 MB

NAND Flash

512 MB

Stack

Service port supporting the stack function

10GE optical ports and 40GE optical ports

Certification

• Safety standards compliance
• EMC standards compliance
• Environmental standards compliance