Troubleshooting; Using The Led Display - Nortel 70 Series Installation And Reference Manual

10/100 ethernet switches
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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:
If the Power LED is not on:
If the Link LED is not on:
206375-A
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.
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.
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.
Chapter 4

Troubleshooting

4-1

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Baystack 70 series

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