Troubleshooting; Troubleshooting With The Nic Leds - 3Com Fast EtherLink 3C515-TX User Manual

5
This chapter explains how to isolate and solve 3C515-TX
NIC problems.

Troubleshooting with the NIC LEDs

The 3C515-TX NIC has three status LEDs, as shown in
Figure 5-1 and described in Table 5-1.
Figure 5-1 3C515-TX NIC and LEDs
Before the LEDs can be used for troubleshooting, the NIC
must be connected to the network (see Chapter 2) and
the network drivers must be installed (see Chapter 3 for
NetWare drivers or Chapter 4 for NDIS drivers).
T
ROUBLESHOOTING
1 0 0
L
N
1 0
K
A C T
T X
T X
100 LNK LED
10 LNK LED
ACT LED
RJ-45 port
RJ-45
connector