Nortel Networks 70 Series - Manual (Page 47)

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Chapter 4
Troubleshooting
This chapter provides methods for diagnosing problems with the BayStack 70
Series 10/100 Ethernet Switch.
Using the LED Display
Use the LED display to help you identify the type of problem you have; then
check the following:
• Verify that the switch is powered on.
• Verify that each cable and port connection has the correct pin assignment and
no connections are loose.
• A good link on a port is verified when the Link/Activity LED is lit for that
port.
If the Power LED is not on:
• Verify that the power adapter and/or power cord are securely attached to the
switch and to the power outlet.
• Verify that your AC power source is functioning properly.
If the Link LED is not on:
• Verify that the device connected to your switch has a properly funtioning
power supply.
• Try using a different port on your switch to connect to the device.
• Try using a different port on the device connected to your switch.