lasj@vax5.cit.cornell.edu (03/14/91)
Hello! Is it possible for two Macs to communicate via serial port (transfer files) using a standard Apple serial cable (part number M0197) and telecommunication software such as VersaTerm or Red Ryder? I have a client who wants to exchange data with two Macs in this fashion. I think it'll work but can't be sure that the M0197 (usually used to connect Mac to ImageWriter) will do the trick. Do we need a "null modem" cable? Comments? Larry
bobert@Autodesk.COM (Robert Murphy) (03/20/91)
In article <1991Mar13.162834.3343@vax5.cit.cornell.edu> lasj@vax5.cit.cornell.edu writes: >Hello! > >Is it possible for two Macs to communicate via serial port (transfer files) >using a standard Apple serial cable (part number M0197) and telecommunication >software such as VersaTerm or Red Ryder? > >I have a client who wants to exchange data with two Macs in this fashion. I >think it'll work but can't be sure that the M0197 (usually used to connect Mac >to ImageWriter) will do the trick. Yes, it will do the trick. > >Do we need a "null modem" cable? Comments? The RS-232 standard expects a master-slave relationship between two devices. A null-modem is a box that switches a couple of the wires around so both devices think they're the master. From that standpoint, the printer cable is a "null modem" cable in that it's got the wires swapped around already. You can also take two normal modem cables and stick a null-modem in between; you can get a null-modem box at Radio Shack for a few bucks. > >Larry Regards, Bob Murphy bobert@autodesk.com