3Com 4210G manual 10/100/1000Base-T Auto-Sensing Ethernet Port Status LED

LED

	Status
System status	Description
	Seven-segment LED
LED (PWR)
	The member ID of the current
	The LED displays the specific numbers. switch in the IRF system.
	Switch 4210G NT 24-port and
	Switch 4210G NT 48-port do
	not support IRF.

The seven-segment LED, the system status LED, and the port mode LED on the Switch 4210G PWR 24-port or Switch 4210G PWR 48-port that supports PoE can display the PoE power consumption percentage of the switch. For details, refer to Table 1-11.

Table 1-11Seven-segment LED description (2)

		LED status
LED	Port mode	System	Seven-segment LED	Description
	LED	status LED
				For example, when the LED
	Flashing		The LED displays the	displays the sign, it indicates
Unit		Steady	specific signs.
	green (1 Hz)	green	81 - 100%	that the PoE power currently
	(PoE mode)		61 - 80%	provided by the switch occupies 0
			21 - 40%
			41 - 60%	to 20% of the total PoE power that
			0 - 20%
				the switch can provide.

10/100/1000Base-T Auto-Sensing Ethernet Port Status LED

The port mode LED and the 10/100/1000Base-T auto-sensing Ethernet port status LED together indicate the port operation status. Refer to Table 1-12 for details.

Table 1-1210/100/1000Base-T auto-sensing Ethernet port LEDs description

	Status
			Description
Port mode	Ethernet port status
LED	LED
	Steady green		The port operates at a rate of 1000 Mbps; the LED is fast
			flashing when data is being sent and/or received on the port.
Steady
	Steady yellow		The port operates at a rate of 10/100 Mbps; the LED is fast
green (rate			flashing when data is being sent and/or received on the port.
mode)
	Flashing yellow (3 Hz)	POST failed on the port.
	Off		The port is not up.

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