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DIFFERENT CHECK SUM= ???? IN STATION * * *
Content :
This message is displayed when an error has been detected as the result of ROM
checksum and RAM writing tests performed after resetting the unit.
Countermeasure : Replace the corresponding ROM.
n
This error message will be displayed even after the ROM has been replaced. This is normal. Execute the
menu item [J: RECALL MAIN TABLE] from the control terminal, and reset the corresponding unit once
again for the unit to begin operating normally.
S-BUS LINK DISCONNECTED
Content :
This message is displayed when the S-BUS data link has been disconnected some-
where.
Countermeasure : Check the connections between the S-BUS line and each station, and check that unused
S-BUS ports or the ends of S-BUS lines have been terminated with 75 Z. One method
to search for the disconnected sections is using the menu item [R: CALL SECOND-
ARY STATION] and checking for responses.
n
Be sure to terminate unused S-BUS ports with 75 Z. When a disconnection has been detected, the
primary station automatically performs 75 Z termination and restarts communication with the stations
just before the disconnection. In this case, some stations may not be able to communicate even though
they are connected.
CHANGED OVER TO BACKUP CPU IN STATION * * *
Content :
This message is displayed when an error has occurred in the CPU board during opera-
tions, and it is changed over to the backup CPU board.
Countermeasure : Remove the main CPU board, and repair or replace it with a new one.
STARTED BY * * * _ * * * * *
Content :
This message is displayed when the switcher is restarted due to instantaneous power
failure, etc., or when the power supply is turned ON.
ROUTING SWITCHER SYSTEM (E)
Check sun value
Ver * .* * IN STATION * * *
6-6. Function Check with Control Terminal
6-9
- Quick Links:
- Digital Routing Switcher System
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