H3C Technologies H3C MSR 20-1X - Manual (Page 12)

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2. Rear panel
Figure 4 Rear panel of the MSR 20-11 router
(1)Grounding terminal (2) Console/Auxiliary port (CON/AUX)
(3) Layer 3 Ethernet interface 0 (ETH0) (4) Layer 2 Ethernet interface 1
(5) Layer 2 Ethernet interface 2 (6) Layer 2 Ethernet interface 3
(7) Layer 2 Ethernet interface 4 (8) Serial interface LEDs
(9) Serial interface (10) SIC/DSIC slot
Panel LEDs
Table 4 and Table 5 respectively describe the LEDs on the front and rear panels of an MSR 20-11 router.
Table 4 Front panel LEDs of the MSR 20-11 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.
Table 5 Rear panel LEDs of the MSR 20-11 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.