3Com 3C16476BS-US - Baseline 2250 Plus Switch User Manual page 11

Status Meaning
Flashing Packets are being received or transmit-
ted on the port
Off Link not established, either nothing is
connected to the port, or there is a
problem.
Verify that the attached device is
■
powered on
Verify that the cable or fiber is the
■
correct type and is not faulty
For fiber connections, ensure that the
■
receive (RX) and transmit (TX) cable
connectors are not swapped
If these checks do not identify the cause
of the problem, it may be that the unit
or the device connected to the port is
faulty. Contact your 3Com network sup-
plier for further advice.
Table 5 10BASE-T/100BASE-TX/1000BASE-T Ports
Status Meaning
Green Link established, operating at 1000
Mbps
Yellow Link established, operating at 10 or 100
Mbps
Flashing Green Packets are being received or transmit-
ted on the port at 1000 Mbps
Flashing Yellow Packets are being received or transmit-
ted on the port at 10 or 100 Mbps
Status Meaning
Flashing Yellow to Port disabled or link loopback error
Green
Off Link not established, either nothing is
connected to the port, or there is a
problem.
Verify that the attached device is
■
powered on
Verify that the cable or fiber is the
■
correct type and is not faulty
For fiber connections, ensure that the
■
receive (RX) and transmit (TX) cable
connectors are not swapped
If these checks do not identify the cause
of the problem, it may be that the unit
or the device connected to the port is
faulty. Contact your 3Com network sup-
plier for further advice.
(4) Module Active LEDs
The Module Active LEDs show the status of any SFP
modules that are installed.
Status Meaning
Green Fiber SFP is inserted in the slot
Off No fiber SFP is inserted in the slot
(5) Power LED
The Power LED shows the power status of the Switch.
Status Meaning
Green The unit is powered on and ready for use
Physical Features 11