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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-646EXP-INTF (Expansion Interface Circuit Pack)
10
To prevent the system from automatically switching Expansion Interface Links
during system technician-demanded tests, busyout one or both of the Standby
Expansion Interface circuit packs.
!
CAUTION:
This introduces a small risk. If the remaining Active Expansion Link should
fail while the Standby Expansion Link is busied out, service to the EPN is
lost.
The set expansion-link command has no error codes to return. It displays one of
following messages upon completion:
1. Command completed successfully
Link switch was successful. This may be verified by visually inspecting the
new yellow LED states or by the status system command.
2. Command did not complete successfully
This indicates that the system attempted to switch links, but for unknown
reasons the software or hardware was unable to complete the action. The
system may have switched and determined that the new link could not
provide service and thus returned to the original link.
3. Standby EXP-INTF Link is unable to take over
Because the Expansion Interface circuit pack pair on the Standby link has
enough errors logged against it as to be unable to provide service, the
system did not attempt to switch links.
4. EXP-INTF is already on active link
The Expansion Interface circuit pack address given in the set
expansion-link command is an Active Expansion Interface. The address
must be a Standby Expansion Interface circuit pack in order to switch
links.
5. Address is not a valid Expansion Interface Board
The link switch could not be attempted because the address in the set
expansion-link command did not correspond to any known Expansion
Interface circuit pack.