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TTL to RS-422 — Parallax Forums

TTL to RS-422

ArchiverArchiver Posts: 46,084
edited 2003-01-03 16:58 in General Discussion
Hi everyone!

I am working on a science fair project that involves rf
communication. I got my hands on two really nice radio modems from
electrowave however the only problem is that they are in RS-422
protocall where as the stamp is TTL. I purchased some ic's that I
think will do the conversion. The part #is DS75176BN and the data
sheet is at http://www.national.com/ds/DS/DS75176B.pdf . However I
cannot figure out what connections I need to make to/from this
converter. Im not familiar with the RE, RO, DE, DI, ect.
abbriviations that are on the data sheet, so I'm not sure what goes
to the stamp and what goes to the modem. Can anyone please help
me?? Thanks

Jason Schuler

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