Step5
Routing optical fiber
5 Description of LEDs
The MA5821/MA5822 provides a variety of indicators on its panel to help users learn about
the running status of the device.
Table 5-1 Indicators on the MA5821/MA5822
Table 5-1 describes the indicators on the MA5821/MA5822
PWR: power supply
status indicator
The device is powered on.
The device is powered
off.
RUN/ALARM：
running status
indicator
Red blinking 0.25s on and
0.25s off
The device is starting up.
green blinking 1s on and 1s
off
The device is functioning
properly.
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