1-580 Trouble locating and clearing procedures (continued)
297-8021-544 Standard 14.02 May 2001
TOPS MPX Token Ring LAN troubleshooting
Error codes
Ring Diagnostic output error codes (166nn) (Sheet 1 of 2)
Error Code
Meaning
Action
16689
Microcode download failure
The adapter microcode download
fails.
Make sure the adapter is firmly seated
in the adapter slot.
Make sure the adapter microcode is
loaded to the correct disk or diskette.
Run the diagnostics again. If the
failure continues to occur, follow the
remove and replace procedures for
the TOPS MPX position. This
procedure is located in the common
procedures section of this manual.
16690
Adapter card test failure
The diagnostics detect a failure during
initialization of the adapter.
Make sure the adapter is firmly seated
in the adapter slot.
Check the established configuration.
If necessary run the automatic
configuration procedure.
Run the diagnostics again. If the
failure continues to occur, follow the
remove and replace procedures for
the TOPS MPX position. These
procedures are located in the common
procedures section of this manual.
16691
Open phase test failure
Replace the adapter cable with a
spare working cable until the problem
is fixed.
Run the diagnostics again. If the
failure continues to occur, follow the
remove and replace procedures for
the TOPS MPX position. These
procedures are in the common
procedures section of this manual.
If the failure does not occur again, the
adapter cable is defective. Replace
the damaged cable.