H3C MSR-20-21 ROUTER Installation Manual page 15

2) Rear view
Figure 1-4 Rear view of MSR 20-21
(1) SIC slot2
(3) Grounding terminal
(5) Power switch
(7) Fixed Ethernet port1 (LAN1)
(9) Auxiliary port (AUX)
(11) CF card LED
(13) Fixed L2 switching port (LAN2LAN9)
Panel LEDs
The following table gives the features of MSR 20-21 router LEDs:
Table 1-7 Front panel LEDs description of MSR 20-21 router
LED
Power LED:
PWR ON means power is on.
OFF means power is off.
System operating LED:
Green and fast blinking means the system is booting.
SYS Green and slow blinking means the system is operating normally.
Yellow and fast blinking means the system is malfunctioning.
Steady OFF means the system does not operate normally.
ESM module LED:
Green and slow blinking means the system is booting.
ESM Steady green means ESM card is operation normally.
Steady yellow means ESM card is malfunctioning.
Steady OFF means no ESM card is present.
Table 1-8 The rear panel LEDs of MSR 20-21 Router
LED
OFF means no link is present.
LINK
ON means a link is present.
OFF means no data is being transmitted or received.
ACT
Blinking means data is being transmitted or received.
(2) SIC slot1
(4) Power socket
(6) Fixed Ethernet port0 (LAN0)
(8) Console port (CON)
(10) USB interface
(12) CF card interface
Description
Description
1-5