CE7855-EI-B-B0A Specification | ||
Item | Description | |
Physical specifications |
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Environment parameters | Temperature |
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.).
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Relative humidity | 5% RH to 95% RH, noncondensing | |
Altitude | < 5000 m (16404 ft.) | |
Noise (sound pressure, 27°C) |
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Power specifications | Power source type | AC |
AC power input |
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DC power input |
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High-voltage DC power input | Not supported | |
Rated input current |
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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 | |
