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

5 To run the tests, choose Run Tests from the Test menu and
select the Start 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 and/or 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, "Loading Network Drivers").
If any problem persists, refer to Appendix B, "Technical
Support."

Link Beat LED

The 3C592 EISA 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.
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.
If you are experiencing any problems, first make sure that
your hub complies with the 10BASE-T specifications and then
check the LED. The meaning of LED activity is given below:
If the LED is on, the link beat is working.
If the LED is off, the link beat has not been established or
there is a problem with the connection between the adapter
and the hub.
If the LED is blinking, the cable polarity is reversed.
Miscellaneous Checks 5-11