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)
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| 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)
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| Relative humidity | 5% RH to 95% RH, noncondensing |
| Altitude | < 5000 m (16404 ft.) |
| Noise (sound pressure, 27°C) | - Back-to-front airflow: < 55 dBA
- Front-to-back airflow: < 54 dBA
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| 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
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| DC power input | - Rated voltage range: -48 V DC to -60 V DC
- Maximum voltage range: -38.4 V DC to -72 V DC
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| 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)
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| 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
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