Mount the train, chain or band that was requested and enter REPLY xx,‘text’ where text is the character set code.

To ignore the request and use the character set image currently loaded, enter REPLY xx,‘U’.

Otherwise, mount a suitable alternate chain, train or band and enter REPLY xx,‘text’ where text is the alternate character set code followed, if applicable, by FOLD or F and/or VERIFY or V. (If FOLD or F is omitted but VERIFY or V is specified, indicate the omission of FOLD or F by specifying two consecutive commas -- for example, REPLY xx,‘AN,,V’.)

If the mounting request cannot be satisfied with any available chain, train or band enter REPLY xx,‘CANCEL’ or REPLY xx,‘C’ to cancel the UCS request. The system will end the job if the request occurred during processing of an OPEN macro instruction. If the request was due to processing of a SETPRT macro, a return code of X'04' will be placed in register 15, and control returned to the program issuing the SETPRT macro.