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26 C2604M (7/06)
Data Tx LED
Flashing amber Data is being trans-
mitted 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 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 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
C2604M.book Page 26 Friday, July 14, 2006 1:08 PM