Cisco Systems WSC3750X24TS specifications Stack LED, Port Mode, Port LED Color, Meaning, 1-20

Chapter 1 Product Overview

10/100 and 10/100/1000 Ports

Table 1-6 Meaning of LED Colors in Different Modes on the Switch (continued)

Port Mode	Port LED Color	Meaning
SPEED	10/100 and 10/100/1000 ports
	Off	Port is operating at 10 Mb/s.
	Green	Port is operating at 100 Mb/s.
	Flashing green	Port is operating at 1000 Mb/s.
	SFP module ports
	Off	Port is operating at 10 Mb/s.
	Green	Port is operating at 100 Mb/s.
	Flashing green	Port is operating at 1000 Mb/s.
		Note When installed in Catalyst 3750 switches, 1000BASE-T
		SFP modules can operate at 10, 100, or 1000 Mb/s in
		full-duplex mode or at 10 or 100 Mb/s in half-duplex mode.
	XENPAK port
	Off	Port is not operating.
	Flashing green	Port is operating at up to 10 Gb/s.
STACK	Off	No stack member corresponding to that member number.
(stack member)
	Flashing green	Stack member number.
	Green	Member numbers of other stack member switches.

1.The PoE LED is only on the Catalyst 3750-24PS, 3750G-24PS, 3750-48PS, 3750G-48PS, 3750G-24WS-S25 and 3750G-24WS-S50 switches.

If your switches are stacked and you press the Mode button on any one of the switches in the stack, all the switches in the stack change to display the same selected mode. For example, if you press the mode button on the stack master to display SPEED, all the other switches in the stack also display SPEED.

The PoE LED is on the Catalyst 3750-24PS, 3750G-24PS, 3750-48PS, 3750G-48PS, 3750G-24WS-S25 and 3750G-24WS-S50 switches. Even if PoE mode is not selected on the switches, this LED still shows PoE problems if they are detected. The Catalyst 3750G-S-SD does not have a PoE LED.

Stack LED

The stack LED shows the sequence of member switches in a stack. Up to nine switches can be members of a stack. The first nine port LEDs show the member number of a switch in a stack. Figure 1-19shows the LEDs on the first switch, which is stack member number 1. For example, if you press the Mode button and select Stack, the LED for port 1 flashes green. The LEDs for port 2 and 3 are solid green, as these represent the member numbers of other switches in the stack. The other port LEDs are off because there are no more members in the stack.

Catalyst 3750 Switch Hardware Installation Guide

1-20 OL-6336-07