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Fault analysis 73
Model 3196RC T-DAC User Manual 5 • Troubleshooting and maintenance
SYSTEM Front
panel
Green Flash-
ing
The Model 3196RC is operating normally. No action rec-
ommended.
Off The Model 3196RC is not functioning properly. As soon
as possible, unplug both power cables from the Model
3196RC, wait 30 seconds, then plug the cables back
into the Mode 3196RC to see if the problem disappears.
If the SYSTEM LED remains lit after the Model 3196RC
completes the power-up cycle, contact Patton Technical
Support to determine whether the T-DAC needs to be
replaced.
ETHERNET Front
panel
Green
On solid
Link status is nominal for the Ethernet port. No action recom-
mended.
Off
• A valid link has not been detected.
• Verify that an Ethernet cable is plugged into the hub, switch,
or workstation and the Ethernet port of the Model 3196RC.
• Verify that the hub, switch, or workstation is powered on.
• Verify that the correct straight-through or cross-over cable is
being used, depending on whether you are connecting to a
workstation (PC), hub, or switch.
• Replace the cable. If the problem still exists, contact Patton Tech-
nical Support to determine if the T-DAC should be replaced.
CLK SOURCE Front
panel
Green
On solid The 3196RC is set as the Master Clock source. No action rec-
ommended.
Flashing The 3196RC is set as the secondary clock source. No action
recommended.
Off The 3196RC is set as the slave, getting its clock from the H.110
Bus. No action recommended.
CLK ERROR
Front panel Yellow On solid Master Clock source has been lost and the 3196RC is using the
secondary source for its clock.
Flashing Master Clock source and the Secondary Clock source have been
lost and the 3196RC is using its internal crystal for its clock.
Off No clock errors currently detected.
No action recommended.
TEST MODE Front panel Green On solid One or more iDSL ports or T1/E1 ports is in test mode.
No action recommended.
Flashing One or more of the iDSL ports or the T1/E1 ports is in test mode
and errors have been received.
Off None of the iDSL ports is operating in test mode.
No action recommended.
Table 8. LED definitions (Continued)
LED Location Color Status Meaning