When you transfer a file from an ASCII-platform to an EBCDIC-platform and want to translate the characters during the transfer you can specify with the transfer options a specific translation table. To do this you can code CONVTAB=xxx in the xcom.cnf file used for that transfer ('xxx' stands for any three-character value).
Let's assume you code CONVTAB=ffm. Then you have to make sure that the two translation tables ffmatoe.tab and ffmetoa.tab exist in the directory %XCOM_HOME%/Convtab. If not, the transfer will fail and you will get message:
XCOMN0456E Cannot open EBCDIC-ASCII translation file
in the XCOM log.