Cisco 3750G-12S - Catalyst Switch - Stackable Hardware Installation Manual page 29

Chapter 1 Product Overview
Table 1-6
Port Mode
SPEED
STACK
(stack member)
1. The PoE LED is only on the Catalyst 3750-24PS, 3750G-24PS, 3750-48PS, 3750G-48PS, 3750G-24WS-S25 and
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.
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.
OL-6336-10
Meaning of LED Colors in Different Modes on the Switch (continued)
Port LED Color
10/100 and 10/100/1000 ports
Off
Green
Blinking green Port is operating at 1000 Mb/s.
SFP module ports
Off
Green
Blinking green Port is operating at 1000 Mb/s.
XENPAK port
Off
Blinking green Port is operating at up to 10 Gb/s.
Off
Blinking green Stack member number.
Green
3750G-24WS-S50 switches.
Meaning
Port is operating at 10 Mb/s.
Port is operating at 100 Mb/s.
Port is operating at 10 Mb/s.
Port is operating at 100 Mb/s.
When installed in Catalyst 3750 switches, 1000BASE-T
Note
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.
Port is not operating.
No stack member corresponding to that member number.
Member numbers of other stack member switches.
Catalyst 3750 Switch Hardware Installation Guide
10/100 and 10/100/1000 Ports
Figure 1-19 shows
1-19