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Monitoring the Unit
4-3
7975-A2-GB20-40
December 1998
Health and Status
The following messages can appear in the first column of the System and Test
Status screen. The highest priority Health and Status message also appears on
all ATI screens on the bottom right.
Table 4-1. Health and Status Messages
Message
What Message Indicates What To Do
System
Operational
There are no problems
detected.
LOS at Net, Pt 1 An LOS (Loss Of Signal)
condition has been detected
on the network interface. No
signal is being received on
Port 1, possibly due to a local
network problem.
1. Verify that the network cable is
securely attached at both ends.
2. Contact network provider.
OOF at Net, Pt 1 Three consecutive frame
synchronization bits were in
error.
1. Check the Transmit Clock Source
configuration options. Do not set
both the local and remote unit to
Internal, External, or Loop timing.
2. Contact network provider.
EER at Net, Pt 1 An EER (Excessive Error
Rate) condition has been
detected on the network
interface at Port 1. The
condition is cleared when the
error rate falls below the
threshold value currently
configured.
Contact network provider.
SYNC Pt Down,
Pt
1
The interchange circuits for
Port 1
are configured to
monitor DTR and/or RTS, and
a monitored lead is not
asserted.
Verify that the DTE is providing the
monitored signals.
Net Margin
Threshold, Pt 1
The signal-to-noise margin
has exceeded the configured
threshold for Port 1.
Contact network provider.
Fallback Rate,
Pt 1
The LTU, set to AutoRate
enable, had a LOS when the
line was restored and
resynched at a lower rate.
Reset the Termination Unit if the
units do not automatically train up at
the previous rate.
DeviceFailed
yyyyyyyy
An internal error has been
detected by the operating
software.
yyyyyyyy
indicates
the 8-digit hexadecimal failure
code.
1. Provide the 8-digit failure code
shown (
yyyyyyyy
) to your service
representative.
2. Reset the 7975 Standalone
Termination Unit to clear the
condition and message.
Download Failed A firmware download was
interrupted.
Repeat the download.