EOB Character & Alias -- The EOB Character field is to contain the character that will be output at the end of each machine control data file block (usually '$') if it is a requirement of your machine control. The EOB Alias field Alias for the EOB Code is a string that is be output for every occurrence of the EOB character (8 ASCII characters max). Note: see PLABEL option 63 if blank characters are to be part of the alias. (Intcom 1839)