Paradyne 7123 User Manual page 102

Zhone 7123 dsu-csu combo: users guide
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6. Troubleshooting
Table 6-1.
6-6
Alarm Conditions (2 of 3)
Alarm Condition
What It Indicates
LOS at Network 1
A Loss of Signal (LOS)
condition is detected on the
network interface. Clears
when the ratio of ones to
zeros received is greater
than or equal to 12.5%.
T
T
T
Network Com Link
The communication link for
Down
the COM port is down and
the COM port is configured
for Net Link.
OOF at Network 1
An Out of Frame (OOF)
condition is detected on the
network interface.
T
T
T
Primary Clock Failed
A failure of the configured
primary clock source for the
unit was detected and the
secondary clock is
providing the timing for the
unit.
This condition clears when
the configured primary
clock is restored.
Self-Test Failure
The unit did not pass its
basic verification tests when
it was powered on or reset.
Two Level-1 Users
Another user with Level-1
Accessing Device
security access is currently
accessing the unit.
Be aware that actions of the
other user may override
your test commands and
configuration changes.
September 2001
What To Do
T
Network cable problem.
T
No signal is being
transmitted at the far-end
DSU/CSU.
T
T1 facility problem.
Check the router connected to the
COM port.
T
Incompatible framing
format between the
network and the
DSU/CSU.
T
Network cabling
problem.
T
T1 facility problem.
T
T
T
T
Wait until no other Level-1 users
are accessing the unit if testing or
configuration will be performed.
Check that the network cable is
securely attached at both ends.
Check far-end DSU/CSU
status.
Contact your network provider.
Check that the framing format
for the network interface is
correct.
Check that the network cable is
securely attached at both ends.
Contact your network provider.
Check that the network cable is
securely attached at both ends.
Contact your network provider.
Reset the unit.
Contact your service
representative.
7123-A2-GB20-00

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