3Com 10/100BASE-T4 PCI - Manual (Page 43)

4-10 C HAPTER 4: P ERFORMING T ROUBLESHOOTING AND D IAGNOSTIC T ESTS
Check the length and rating of the UTP cable connection.
Make sure the cable segment is compliant with 10BASE-T or
100BASE-T4 specifications. Maximum length for all types of
cabling for this adapter is 100 meters (330 feet).
Make sure that you have installed the correct driver for the
network operating system you are running (refer to
Chapter 3, “Loading the Network Drivers”).
If any problem persists, refer to Appendix D, “Technical
Support.”
LEDs
Each 10/100BASE-T4 PCI adapter has three LEDs, as shown in
Figure 1-1 and described in Table 4-2.
The adapter must be physically connected to the network and
network drivers must be loaded for the LEDs to work.
If you experience any problems, first make sure that the
appropriate driver is loaded, that the proper cable is
connected to the adapter port, and that the hub complies
with the adapter specifications (10 Mbps 10BASE-T or
100 Mbps 100BASE-T4). Then recheck the LED.
Table 4-2 Fast EtherLink 10/100BASE-T4 PCI Adapter LEDs
LED Description Flashing Steady Off
10 LNK Green:
Shows link
integrity Reversed cable
polarity Good 10BASE-T
connection between
adapter and hub No connection between
adapter and hub
100 LNK Green:
Shows link
integrity
Not applicable Good 100BASE-T4
connection between
adapter and hub No connection between
adapter and hub
ACT Yellow:
Indicates port
traffic for
either speed Network traffic
present Not applicable No traffic