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SFP port LED
Each 1000Base-X SFP port has a status LED to show port operating status and activities. The port mode
LED indicates the type of information (for example, port rate or duplex mode) that the port LEDs are
showing. You can use the port LED mode switching button to change the type of port information that is
displayed.
Table 25 SFP port LEDs description
Port mode LED (Mode) status
Steady green (rate mode) or
flashing green (1 Hz, PoE
mode)
The port is operating at 1000 Mbps.
The port LED fast flashes when the
port is sending or receiving data.
POST has failed on the port.
No link is present on the port.
Steady yellow (duplex mode)
The port is operating in full duplex
mode. The port LED fast flashes
when the port is sending or receiving
data.
POST has failed on the port.
No link is present on the port.
Interface card status LED
Table 26 Interface card status LED description
The interface card is in position and operating properly.
The switch does not support the interface card model, or the
interface card has failed.
The expansion interface card slot is empty.
LEDs (for the A5120 SI switches)
Table 27 LEDs at a glance
A5120-24G-PPoE+ SI, A5120-24G-PoE+ SI
10/100/1000 Base-T Ethernet port LED
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