Hi there - I did a Google search and came up with the link below
https://www.ued.net/ued/addItems.do?itemCode=MSCQQCG0443AIt may be that you can order it
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QQCG0443A
Se0203S0
is the number quoted on the bottom right of the back page of the KN2400/KN2600 Reference Guide
Good Luck - Joan