User`s guide

6. Monitoring and Troubleshooting
6-4
May 2002 7990-A2-GB20-00
EER at G.703 An EER (Excessive Error
Rate) condition has been
detected on the G.703
interface.
1. Verify the attached
equipment coding is
compatible.
2. Verify your clock
configuration.
3. Contact network provider.
Fallback Rate The STU-C had a loss of
signal, and when the line was
restored it did not
resynchronize to the last
known rate, but to a lower
rate.
1. Verify that the network cable
is securely attached at both
ends.
2. Reset the unit.
3. Contact network provider.
LOF at G.703 An LOF (Loss Of Frame)
condition has been detected
on the G.703 interface.
1. Verify that the network cable
is securely attached at both
ends.
2. Verify the unit’s line framing
and line coding are
compatible with the attached
equipment.
3. Contact network provider.
LOS at G.703 A LOS (Loss Of Signal)
condition has been detected
on the G.703 interface.
1. Verify proper framing.
2. Contact network provider.
LOS at DSL An LOS (Loss Of Signal)
condition has been detected
on the DSL port when the
DSL transceiver is not in
Data mode.
1. Verify that the network cable
is securely attached at both
ends.
2. Verify proper STU-C and
STU-R configuration.
3. Contact network provider.
Net Com Link Down The Network communication
link is down.
Communications between
the management system and
the unit is not possible.
1. Verify that the network cable
is securely attached at both
ends.
2. Verify the link protocol for the
COM port is configured
correctly.
3. Verify that no tests are
active.
Primary Clock Failed A failure has occurred in the
primary clock source for the
G.703 port. Timing is being
supplied by the fallback
clock.
1. Verify that the network cable
is securely attached at both
ends.
2. Verify the clock
configuration.
3. Contact network provider.
Table 6-1. Health and Status Messages (2 of 3)
Message What Message Indicates What To Do