IBM 3746-900, Installation And Maintenance Manual

Page: 105 / 264

Token-Ring Adapter Card LED Status
Use Table 3-4 below to determine the status of the token-ring adapter card for
diagnosing network problems.
Note: See “Token-Ring Table Terms and Definitions” on page 3-26 for the
definitions of terms in this table.
Table 3-4. Token Ring Adapter Card Status
Amber Green Explanation
Blinking Blinking The adapter is waiting for initialization (during POST).
Off Off The adapter initialization is in progress (during POST), or
the computer is powered off.
Off Blinking The adapter did not detected any problems during its
self-diagnostic tests and is waiting to open. If this LED
state occurs after the adapter has been opened, this
state indicates that the adapter has been closed under
software control.
Off On The adapter is open and operating correctly.
On Off The adapter self-diagnostic tests failed or there is a
problem with the adapter.
Replace:
Adapter
System board
Blinking Off The adapter is closed due to an undetected error. One of
the following exists:
The adapter open failed.
The adapter detect a wire fault.
The adapter failed the auto-removal test.
Blinking On The adapter has detected beaconing or a hard error. If
the network is known good, check cable between
computer and network receptacle.
Replace:
Adapter
System board
On On The adapter has failed before running the self-diagnostic
tests.
Replace:
Adapter
System board
Chapter 3. Service Processor Troubleshooting
3-25