Does anyone know how to interface IBM 5251 terminal protocol, "SDLC" synchronous, with RS232? Thanks, Bernd 'bear-nd' *** hooray for USENET *** (Not affiliated with, nor speaking for U.C. San Diego) UUCP: ...!ucbvax!sdcsvax!sdcc12!wa371, ARPA: sdcsvax!sdcc12!wa371 at nosc