Installation manual
AT-2560FX 100 and AT-2560TX 10/100 PCI
24
The AT-2560TX 10/100 PCI has three diagnostic LEDs
above the cable connectors. These lights help indicate if
there’s a problem with the connector, cable, or hub.
The LNK light is ON when the adapter receives a Link
pulse from the hub. If the light is OFF, there may be a bad
connector, bad cable, or problem with the hub. The LNK
light is also OFF when running diagnostics in SETUP.
The ACT light is on when there’s read/write activity on the
network. It doesn’t always mean there is activity on the
adapter. If the ACT light isn’t on, make sure the hub and
network are operating and the drivers are loaded.
The 100 light is on when a 100 Mbps connection is estab-
lished.
❑ Make sure you’re using the correct drivers
You must use the drivers that come with this adapter.
❑ Test the adapter
Test the adapter as described in this guide. Remember, how
you test the adapter depends on which operating system
you’re running.
Table 7: Common AT-2560TX 10/100 PCI problems and solutions
Problem Solutions
SETUP reports the adapter’s
interrupt as ‘0’ or ‘255’
SETUP reports ‘No PCI Bus'
The PCI BIOS isn’t configuring the
adapter correctly. Try “PCI installation
tips” on page 26.
Computer hangs when loading
drivers
Change the PCI BIOS interrupt settings.
See the next page for PCI installation
tips.
Diagnostics pass, but the
connection fails.
Make sure the network cable is securely
attached.
Make sure you’re using Category 5
cabling when operating at 100 Mbps.










