Xref: utzoo comp.dcom.modems:4599 sci.electronics:8056 Path: utzoo!utgpu!attcan!uunet!intercon!amanda@intercon.com From: amanda@intercon.com (Amanda Walker) Newsgroups: comp.dcom.modems,sci.electronics Subject: Re: SW56/ISDN for Macintoshes?? Message-ID: <1473@intercon.com> Date: 1 Oct 89 20:31:09 GMT References: <1989Sep29.114152.4344@ux1.cso.uiuc.edu> <2439@ucsfcca.ucsf.edu> Sender: news@intercon.com Reply-To: amanda@intercon.com (Amanda Walker) Organization: InterCon Systems Corporation Lines: 18 In article <2439@ucsfcca.ucsf.edu>, jst@cca.ucsf.edu (Joe Stong) writes: > I'm curious whether they are > "settable" to exactly 56K baud using the internal clocks. The mac is > capable of getting external clocking, possibly with some minor change > (the people who do FastTalk AppleTalk do this) > > All you may need is a cable if you're using a 56K baud modem that can > supply a clock signal. Doing 57600 baud async is no problem with the standard Mac serial ports. I'm not sure if you can get 57344, which would be exactly 56 * 1024. 57600 seems to be what most people mean by "56K baud", though, since it's exactly 3 * 19200. You should be able to run sync at up to 1mbps, although you won't have much processor time left :-). -- Amanda Walker amanda@intercon.com