
7
Panel LEDs
Table 6 and Table 7 respectively describe the LEDs on the front and rear panels of the MSR 20-12 router.
Table 6 Front panel LEDs of the MSR 20-12 router
LED Description
PWR
• ON: The router is powered on.
• OFF: The router is powered off.
SYS
• Green and fast blinking: The system is booting.
• Green and slow blinking: The system is operating normally.
• Yellow and fast blinking: The system is faulty.
• OFF: The system operation is abnormal.
ETH
• OFF: No link is present.
• ON: A link is present.
• Blinking: Data is being transmitted or received.
WLAN
When Boot ROM is booting:
• Blinking: The basic Boot ROM is booting.
• ON: The extended Boot ROM is booting.
When the router is running:
• Slow blinking: The system is operating normally.
• Fast blinking: There is heavy traffic.
• OFF: The system operation is normal.
Table 7 Rear panel LEDs of the MSR 20-12 router
LED Description
LINK
• OFF: No link is present.
• ON: A link is present.
ACT
• OFF: No data is being transmitted or received.
• Blinking: Data is being transmitted or received.
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