The picture shows part of a DBCS character conversion table labelled DBASTOEB. Ii consists of a list of 256 4-byte pointers, labelled X'00 to X'3FC, and a pair of 256-byte translate tables.
In the example, the double-byte ASCII character X'6AE9 converts to the EBCDIC character X'CC22. The value at offset X'6A in the pointer list is the address of this pair of translate tables. At offset X'E9 in these tables, the byte values are X'CC and X'22.