Huawei OptiX OSN 8800 Hardware Description page 87

OptiX OSN 8800/6800/3800
Hardware Description
Figure 4-36 Functional block diagram of the fan tray assembly
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Appearance
Figure 4-37
Figure 4-37 Fan tray assembly
1. Air filter
Issue 01 (2016-03-10)
FAN: dissipates heat generated by normal operation of the subrack. FAN is the core of
the fan tray assembly.
Fan control board:
Controls the fan speed according to regulating signals.
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Detects faults. After a fault is detected, the fan control board reports an alarm. In
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this case, the SCC board issues commands to instruct the other fan in the same area
to adjust the fan speed based on the temperature reported by the board.
Monitors the fan speed regulating signals, the fan status, and the online/offline state
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of the fan tray assembly.
Receives and carries out commands from the SCC board to shut down the fans on
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the fan tray assembly if necessary.
shows a fan tray assembly.
2. Operating status indicators
An air filter is installed on the fan tray assembly to prevent dust from entering the subrack.
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4 OptiX OSN 8800 Subrack
3
2
1
3. Fans (eight in total)
CAUTION
Hazardous moving parts,keep fingers
and other body parts away.
严禁在风扇旋转时接触扇叶！
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