104
C
HAPTER
7: T
ROUBLESHOOTING
FOR
W
INDOWS
3.
X
Figure 60
Assembling a Loopback Plug
Starting the Group 2 Test
Follow these steps to run the Group 2 test on either the
3C509B-TPC or 3C509B-COMBO NIC:
1 Connect the loopback plug to the round BNC
connector on the NIC.
2 Start the Configuration and Diagnostics Program,
as described in “
Starting the DOS Configuration and
Diagnostics Program
” on
page 102
.
3 From the
Test
menu, select
Test Setup
.
4 Enable the Group 2 test. Select
OK
and press Enter.
5 Go to the Run Tests dialog box to start the tests.
6 After the test is completed:
a
Exit the Configuration and Diagnostics Program.
b
Remove the loopback plug.
Running the Group 3 Test
The Group 3 test is the Echo Exchange Test. It tests to see if
the NIC can transmit and receive data while connected to
the network. If you have successfully run the Group 1 and
Group 2 tests, a failure in the Group 3 test usually indicates
a cabling, hub, or network problem.
CAUTION:
Do not use an active network to run the
Group 3 test.
50
Ω
Terminator
50
Ω
Terminator
T connector
Book Page 104 Monday, June 7, 1999 8:55 AM
