Leds - 3Com 1100 User Manual

14 C 1: I
HAPTER NTRODUCING THE

LEDs

S 1100
WITCH
Table 3 lists the LEDs visible on the front of the Switch, and their states
according to color. For information on using the LEDs for problem solving,
see "Checking for Correct Operation" on page 30.
Table 3 LED behavior
LED Color
TCVR Yellow
Off
Port Status LEDs
Packet Yellow
Off
Status Green
Green flashing
Off
Expansion Module Port Status LEDs
Packet Yellow
Off
Status Yellow
Yellow flashing
Off
Unit LEDs
1–8 Green
Off
Power/Self Test LED
Green
Green flashing
Yellow
Off
Indicates
Port 1 is a Transceiver Module fitted to the rear of the
Switch.
Port 1 is operating as a 10BASE-T port.
Packets are being transmitted/received on the port.
No packets are being transmitted/received on the port.
A link is present, and the port is enabled.
A link is present, but the port is disabled.
No link is present.
Packets are being transmitted/received on the
Expansion Module or Matrix Module port(s).
No packets are being transmitted/received on the
Expansion Module or Matrix Module port(s).
A valid Expansion Module or Matrix Module is
installed.
An unrecognized Expansion Module or Matrix Module
is installed.
No Expansion Module or Matrix Module is installed.
The Switch forms a stack with other Switch 1100 /
Switch 3300 units; the LED indicates the position of
the Switch in the stack and that a link is present. Note
that although there are eight LEDs, only four Switch
units can be stacked at present.
The Switch is stand-alone.
The Switch is powered-up.
The Switch is either downloading software or is
initializing (which includes running a Power On Self
Test).
The Switch has failed its Power On Self Test.
The Switch is not receiving power.