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Messages and Troubleshooting
6-6
7986-A2-GB20-00
September 1998
Table 6-2. Troubleshooting (2 of 2)
Symptom SolutionsPossible Cause
Not receiving data. H The network or data port
cables are not
connected (check front
panel LEDs for more
information).
H No crossover cable
being used on the DSL
network
H Check network and data port
cables.
H Run Loopback tests. Refer to
Chapter 5,
Testing
.
H Use a crossover cable on the DSL
network. Cross PINS 1, 2 to 4, 5.
be g used e S
network.
H A test is being executed
on the unit (check the
TEST LED on the front
panel).
H The far-end device is
off-line.
H Stop the test or wait for the test to
end.
H Make sure the far-end device is
on.
Power-Up Self-Test
fails. Only Alarm
LED is on after
power-up.
The unit has detected an
internal hardware failure.
H Reset the unit and try again.
H Contact your service
representative.