dcaffey@hydra.unm.edu (Dom Caffey CIRT-APSYS) (07/13/90)
Awhile ago I posted the following letter: >To someone with technical knowledge about macs: > >> >> I'm trying to get a mac-512+ to talk to an MS-DOS machine > (Zenith MinisPort) via the mac's modem port and the zenith's 9 pin > rs232. I've got the pinouts for both ports but don't have signal > line voltage levels for either. What I need to know is what the voltage > line levels are for both machines or either one if info can only be > provided on one machine. I've heard that the higher voltage signal > line levels coming off the rs232 port of the zenith won't hurt the > mac but I can't go on heresay or rumors because if I was wrong, the > cost of the mistake would be too much. If anyone has some good, > sound technical advice on this subject, I'd appreciate hearing from > you via direct email to me. > > > Thanks in advance, > > Dominic Caffey > > p.s.: I talked to the local Apple store here in town and with > Computerland and neither was of much help. The sole purpose of this 2nd letter is simply to thank all those who responded to my query. THANKS!! I got a lot of good advice and successfully built the cable. Appreciatively, Dominic Caffey -- +-------------------------------+ | Dominic Caffey, | | Student, Ph#: (505)-296-1942 | | University of New Mexico, USA |