ISC subsystem (DPM-Bn)
The NXT=midname that is specified on the MSG TYPE=OUTPUT becomes the RDPN on output and, if not changed by the remote program or subsystem, becomes the DPN on input.
The NXT=midname that is specified on the MSG TYPE=OUTPUT becomes the RDPN on output and, if not changed by the remote program or subsystem, becomes the DPN on input.