Publication 1756-UM050A-EN-P - December 2001
A-2 Troubleshooting
Link Status Indicator
The Link Status LED provides the following information:
OK Status Indicator
The OK Status LED provides the following module information:
Detailed network diagnostics are provided by the module’s Web
pages, which can be accessed through a network browser, such as
Netscape or Microsoft Internet Explorer. See Appendix B.
State Status Description
Off No data
transmission
Module is not ready to communicate.
Green Ready Module is ready to communicate.
Flashing Green Data transmission
in progress
Module is communicating over the network.
State Status Description
Off No Power Module does not have 24V DC power. Verify there
is chassis power and the module is completely
inserted into chassis and backplane.
Flashing Green Standby Module is not configured.
Green Operational Module is operating correctly.
Flashing Red Minor Fault A recoverable fault has been detected. This could
be caused by an error in the configuration.
Red Major Fault An unrecoverable fault has been detected.
Recycle power to the module. If this does not
clear the fault, replace the module.
Flashing Red and
Green
Self Test Module performing power-up self-test.
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