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Monitoring the Unit
4-4
7975-A2-GB20-40
December 1998
Table 4-1. Health and Status Messages
Message What To DoWhat Message Indicates
Net Com Link
Down
The Network communication
link is down. Communications
between the management
system and the LTU/NTU is
not possible.
1. Verify that the network cable is
securely attached at both ends.
Mismatch Rate,
Pt 1
The LTU, in fixed rate, is
attempting to communicate at
a faster rate than the NTU
can handle.
If the LTU is a 2 Mbps product:
1. Verify endpoint is not a 1 Mbps
product
2. Upgrade remote unit to a 2 Mbps
Self-Test Results
The results of the last power-up or reset self-test appear in the middle column of
the System and Test Status screen.
Table 4-2. Self-Test Results Messages
Message What Message Indicates What To Do
CPU Failed The CPU failed internal testing.
1. Reset the unit and try again.
DeviceFailed One or more of the 7975 Standalone
Termination Unit’s integrated circuit
chips has failed device-level testing.
2. Call your service
representative for assistance.
Net DSL
Failed, Pt 1
The 7975 Standalone Termination
Unit failed to loop data on the
network DSL circuit of Port 1.
1. Reset the unit and try again.
2. Call your service
representative for assistance.
SYNC Pt
Failed, Pt 1
The 7975 Standalone Termination
Unit failed to internally loop data on
the synchronous Port 1.
re resentative
for
assistance
.
Memory
Failed
The 7975 Standalone Termination
Unit failed memory verification.
Failure
xxxxxxxx
An internal failure occurred.
(xxxxxxxx
represents an 8-digit
hexadecimal failure code for use by
service personnel.)
Record the failure code and
contact your service
representative.
Passed No errors were detected.