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Table 26 SFP port LEDs description
Port mode LED (Mode) status Port LED status Description
Steady green
The port is operating at 1000 Mbps.
The port LED fast flashes when the port
is sending or receiving data.
Flashing yellow (3 Hz) POST has failed on the port.
Steady green (rate mode) or
flashing green (1 Hz, PoE mode)
Off No link is present on the port.
Steady green
The port is operating in full duplex
mode. The port LED fast flashes when
the port is sending or receiving data.
Flashing yellow (3 Hz) POST has failed on the port.
Steady yellow (duplex mode)
Off No link is present on the port.
Interface card status LED
Table 27 Interface card status LED description
LED mark Status Description
Green The interface card is in position and operating properly.
Flashing yellow
The switch does not support the interface card model, or the interface
card has failed.
MOD1
MOD2
Off The expansion interface card slot is empty.
LEDs (for the 5120 SI switches)
Table 28 LEDs at a glance
LED Availability
Power LED Entire series
RPS status LED 5120-24G-PoE+ SI
Port mode LED
5120-8G-PPoE+ SI, 5120-8G-PoE+ SI, 5120-24G-PPoE+ SI,
5120-24G-PoE+ SI
10/100/1000Base-T Ethernet port LED Entire series
1000Base-X SFP port LED Entire series
Power LED
The power LED shows the operation status of the switch.
Table 29 Power LED description
LED mark Status Description
Power
Steady green The switch is operating properly.