Miscellaneous Checks; Link Beat Led - 3Com EtherLink III User Manual

5-1 o C hapter 5: P erform ing T ro u b le sh o o tin g a n d D iagnostic Tests
4 When you are satisfied with the new test setup, highlight
the <OK> command button and press [Enter].
5 To run the tests, choose Run Tests from the Test menu and
select the <Start> command button.
CAUTION: Do not use an active network to run the Group 2
or Group 3 tests.

Miscellaneous Checks

Check for specific hardware problems, such as broken traces
or loose/broken solder connections.
If you have installed the adapter correctly and you still
experience problems, check the software.
Make sure that you have installed the correct drivers for the
network operating system you are running (refer to Chapter 4,
"Installing the Network Drivers").
If any problem persists, refer to Appendix B, "Technical Support."

Link Beat LED

The EtherLink III twisted-pair and COMBO adapters have an
LED for the link beat (see Figure 1-1).The link beat LED
confirms that there is an active connection between the
adapter and the hub.
k w When you first install the adapter and power up the computer,
the LED lights, but the link beat is inactive. For the link beat to
be active (enabled), you need to have run the Group 3 test or
have loaded the network drivers.