Xref: utzoo comp.dcom.modems:2065 sci.electronics:3221 rec.ham-radio:5273 Path: utzoo!utgpu!water!watmath!clyde!att!pacbell!lll-tis!helios.ee.lbl.gov!pasteur!ucbvax!decwrl!labrea!glacier!jbn From: jbn@glacier.STANFORD.EDU (John B. Nagle) Newsgroups: comp.dcom.modems,sci.electronics,rec.ham-radio Subject: Facsimile modems Message-ID: <17531@glacier.STANFORD.EDU> Date: 7 Jul 88 04:56:52 GMT Organization: Stanford University Lines: 20 There are some interesting modem chip sets available for high-speed half-duplex data transmission. These are intended for fax machines, but are actually general-purpose digital modems. The Rockwell R96MD is a 9600 bps half-duplex modem, V.29 compatible, available as a two-chip set on a board for $175 in quantity 1. This looks like an interesting unit for specialized applications such as telemetry, amateur packet radio, and such. It's bus-compatible with 8080-type processors, and can be made to talk to other 8-bit paths with the usual glue. Or it can be operated via an RS-232 interface, bearing in mind that this is a synchronous modem. Rockwell promises a single-chip version next year, the R96MFX. Anyone ever use these things? Contact your local Rockwell rep for further info. The "Modem Products Data Book" has all the data sheets. John Nagle