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Figure 1-22 SFP+ cable
z You are recommended to use SFP+ transceivers and SFP+ cables of H3C on the switch 4210G.
z The types of SFP+ transceivers and SFP+ cables may update with time. For information about
transceivers, contact 3Com technical support or marketing staff.
Description of LEDs of Interface Modules
There is a LED for each port on the interface module panel. Table 1-19 describes the LEDs.
Table 1-19 Description of LEDs on interface modules
LED Mark Status Description
On
The port is normally connected.
The LED blinks quickly when the
port is sending or receiving data.
Port LED of an
interface module
—
This LED is
not affected
by the mode
button.
Off
The port is not up.
For details about the port mode switching button, see Port Mode LED.