2.8.5. Service steps after the automatic switch over 
Two steps can be different after a switch over in case of error:
- The subscribers which are switched over should get their original pens.
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In this case the board pool has to be defined as HOPAUT=SINGLE!
- Change the defective board resp. reconnect the LAN connection.
- Switch back the subscribers with the AMO command
RESTART-BSSU:ADDRTYPE=PEN,LTU=xx,SLOT=xx,CGWSW=CGWSWBCK;(xx -> Pen of the board with status STDBYDEF)- Reset the history data of the Board Pool:
CHANGE-BPOOL:MTYPE=CGW,TYPE=HISTRES,LTU=y,SLOT=zz; - The subscribers which are switched over should remain on the new pens.
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In this case the board pool has to be defined as HOPAUT=MULTI!
- Change the defective board resp. reconnect the LAN connection.
- Switch the STDBYDEF board to STDBYRDY with the AMO command
RESTART-BSSU:ADDRTYPE=PEN,LTU=xx,SLOT=xx,CGWSW=STBYRDY;