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Installation Manual
H3C AR 18-3XE/18-21X Series Routers
Chapter 1 Product Overview
1-9
III. LEDs
You may gather information about the status of the AR 18-31E
and its interfaces by reading the 10 LEDs on its cover, as shown in
Table 1-7.
Table 1-7
LEDs on the cover of the AR 18-31E
LED
Description
LAN1/LAN2/LAN3/LAN4
OFF means no link is present.
Steady ON means a link is present.
Blinking means the interface is
sending and/or receiving data.
DSL LNK
OFF means no
ADSL/ADSL2/ADSL2+ line is
activated.
Steady ON means the
ADSL/ADSL2/ADSL2+ line is
activated.
Blinking means the connected two
parties are negotiating parameters.
DSL ACT
OFF means no data is being sent or
received.
Blinking means the interface is
sending and/or receiving data.
ISDN LNK
OFF means the ISDN link is not
activated.
ON means the ISDN link has been
activated.