Delivering output messages to non-originating terminals

Using ETO, you can receive your output messages at a different terminal than the one from which you entered the input. However, the input and output messages are formatted subject to the MFS specifications defined for both the terminal and messages, as follows:

• MFS formatting is mandatory for 3270R (non-SNA) and SLU-2 terminals, except when you use MFS bypass. MFS formatting is optional for all other VTAM® terminals. Use MFS on a message-by-message basis, based on MID and MOD control block availability. MFS paging support is not available for SLU–1 or NTO terminals.
• You must define MID and MOD control blocks by using device statements that generate appropriate DIF and DOF control blocks. This allows you to map the message to and from a specific terminal type at the time that the message is sent to or received from the terminal. Default mapping occurs when the appropriate MFS blocks are not available. IMS issues error message DFS057 when the format blocks cannot be found.