CE7855-EI-B-B0A

CE7855-EI-B-B0A Specification

Item

Description

Physical specifications

• Dimensions (W x D x H): 442.0 mm x 607.0 mm x 43.6 mm (17.4 in. x 23.9 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): 11.2 kg (24.69 lb)

Environment parameters

Temperature

• Operating temperature: 0C to 40C (32F to 104F) 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 1C (1.8F) every time the altitude increases by 220 m (722 ft.).

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

Relative humidity

5% RH to 95% RH, noncondensing

Altitude

< 5000 m (16404 ft.)

Noise (sound pressure, 27C)

• Back-to-front airflow: < 55 dBA
• Front-to-back airflow: < 54 dBA

Power specifications

Power source type

AC

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 290 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

• 600 W AC power (PAC-600WA series): 9 A (100 V AC to 240 V AC)
• 600 W DC power (PDC600S12 series): 20A (-48 V DC to -60 V DC)

Chassis power consumption

Maximum power consumption

444 W

Typical power consumption

262 W (100% throughput, QSFP+ cables on 32 ports, double power modules)

Chassis heat dissipation

Maximum heat dissipation

1515 BTU/hr

Typical heat dissipation

895 BTU/hr (100% throughput, QSFP+ cables on 32 ports, double power modules)

Surge protection

AC Power module: 6 kV in common mode and 6 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:

CE7800 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)

49.81 years

Mean time to repair (MTTR)

1.81 hours

Availability

0.99999584354

Technical specifications

Processor

1.5 GHz, quad-core

DRAM Memory

4 GB

NOR Flash

16 MB

NAND Flash

1 GB

Stack

Service port supporting the stack function

40GE optical ports

Certification

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