Cisco C880 M4 Hardware Installation Manual page 7

*3: There are cases when device is overloaded or when abnormality is detected, FAN rotates at high-speed
even if recommended environmental temperature is used.
*4: Protect from condensation.
*5: Temperature condition changes according to the installation location above sea level.
For 0 to 1000 m (0 to 3281 ft) above sea level, temperature range at the time of installation: 5 to 35°C
(41 to 95°F)
For 1000 to 1500 m (3281 to 4921 ft) above sea level, temperature range at the time of installation: 5 to
33°C (41 to 91.4°F)
For 1500 to 2000 m (4921 to 6562 ft) above sea level, temperature range at the time of installation: 5 to
31°C (41 to 87.8°F)
For 2000 to 3000 m (6562 to 9843 ft) above sea level, temperature range at the time of installation: 5 to
29°C (41 to 84.2°F)
Error of + 100m in the sea level settings of the location of installation is permissible.
*6: Downtime is the condition in which the device is packed and maintained.
*7: Level of noise which is actually heard varies as per the mounting condition of the position from where the
noise is heard or the position of rack.
*8: Level of noise and the level of acoustic power changes according to the Hardware configuration, the
processing load and the environmental temperature.
*9: Downtime is the condition in which the device is installed. However, the power is switched off.
*10: Value at the time of operations.
*11: Value of 1 input cable
*12: Value of 1 device
*13: Interruptible power supply is the built-in PSU (80 PLUS SILVER supported), high efficiency power
supply is the built-in PSU (80 PLUS PLATINUM supported)
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