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C1648M (4/05) 27
Data Tx LED
Flashing amber Data is being
transmitted onto the
fiber by the data port.
— No action required.
Red Data Selection switch is
set to an invalid setting.
Data Selection switch is
set to setting 5, 6, 7, 8,
or 9.
Set Data Selection
switch to the correct
setting for the desired
data communication
(refer to Table A).
Not lit Data is not being
transmitted onto the
fiber by the data port.
Data is not present on
the channel.
No action required.
Data connection is
faulty.
Check data connections.
Data communication
cable is defective.
Replace cable.
Data Rx LED
Flashing amber Data is being received
from the fiber by the
data port.
— No action required.
Red Data Selection switch is
set to an invalid setting.
Data Selection switch is
set to setting 5, 6, 7, 8,
or 9.
Set Data Selection
switch to the correct
setting for the desired
data communication
(refer to Table A).
Not lit Data is not being
received from the fiber
by the data port.
Data is not present on
the channel.
No action required.
Data connection is
faulty.
Check data connections.
Data communication
cable is defective.
Replace cable.
Table C.
Troubleshooting with Front-Panel Indicators (Continued)
Indicator Color Meaning Possible Cause Corrective Action