Nortel Contivity 100, Setting Up

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60 Chapter 5 LEDs: support and diagnostic functions
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Using the seven-port autosensing Ethernet switch LEDs for
troubleshooting
The seven-port autosensing Ethernet switch has two LEDs for each port on the
Ethernet switch. The top row of these LEDs displays speed, link, and activity. The
bottom row of LEDs displays whether the unit is operating in full- or half-duplex
mode.
Use the LED display to help you identify the type of problem with the Ethernet
switch and then verify that:
• The Ethernet switch is powered on.
• Each cable and port connection has the correct pin assignment and that no
connectors are loose.
• The Link/Activity LED glows for each port used.
If the Link LED is not on, do the following:
• Verify that the device connected to the Ethernet switch has a properly
functioning power supply.
• Try using a different port on the Ethernet switch to connect the device.
• Try using a different port on the device connected to the Ethernet switch.
Table 12 describes the LEDs that monitor the seven-port Ethernet switch.
Table 12 Ethernet switch port status LEDs
Label Color Activity Meaning
10/100 Link/Activity Green Solid Port is connected at 100 Mb/s.
10/100 Link/Activity Amber Solid Port is connected at 10 Mb/s.
10/100 Link/Activity Green Blinking 100 Mb/s activity is occurring on the port.
10/100 Link/Activity Amber Blinking 10 Mb/s activity is occurring on the port.
FDX Green Solid Port is operating in full-duplex mode.
FDX Off Off Port is operating in half-duplex mode.