larry@nstar.UUCP (Larry Snyder) (02/23/90)
In article <25e2f06a:817.1comp.unix.i386;1@tronsbox.UUCP>, tron1@tronsbox.UUCP (HIM) writes: > Well, I'll tell you . I had the same search --- and picked a nice simple > solution. > > >DUMB< serial cards with 16550A's running the PD FASY driver for SYS 5 3.2 > > Does everything you want , never locks up . is REAL CHEAP. But dumb ports (multple ones) supporting high speed modems put a massive load on the primary CPU (don't they?) -- Larry Snyder, Northern Star Communications, Notre Dame, IN USA uucp: larry@nstar -or- ...!iuvax!ndmath!nstar!larry 4 inbound dialup high speed line public access system
sl@van-bc.UUCP (Stuart Lynne) (02/23/90)
In article <511202@nstar.UUCP> larry@nstar.UUCP (Larry Snyder) writes: }In article <25e2f06a:817.1comp.unix.i386;1@tronsbox.UUCP>, tron1@tronsbox.UUCP (HIM) writes: }> Well, I'll tell you . I had the same search --- and picked a nice simple }> solution. }> }> >DUMB< serial cards with 16550A's running the PD FASY driver for SYS 5 3.2 }> }> Does everything you want , never locks up . is REAL CHEAP. } }But dumb ports (multple ones) supporting high speed modems put a massive }load on the primary CPU (don't they?) } On Xenix even using 16450's will work for one or two Trailblazers quite nicely. On my system (25Mhz 386) I didn't really notice a tremendous load. With 16550's I have run three Trailblazers and three 2400 Hayes with little loading and no character loss problems. -- Stuart.Lynne@wimsey.bc.ca ubc-cs!van-bc!sl 604-937-7532(voice) 604-939-4768(fax)
larry@nstar.UUCP (Larry Snyder) (02/23/90)
In article <196@van-bc.UUCP>, sl@van-bc.UUCP (Stuart Lynne) writes: > > On Xenix even using 16450's will work for one or two Trailblazers quite > nicely. On my system (25Mhz 386) I didn't really notice a tremendous load. > > With 16550's I have run three Trailblazers and three 2400 Hayes with little > loading and no character loss problems. > Ahh - but with Xenix. Unix would have problems with 3 blazers and 3 2400 baud modems all going full bang on dumb ports. I wonder if 16550AFNs and a replacement driver (FASY, Murray) would work in the above installation (under 386/ix of course) supporting 6 modems? -- Larry Snyder, Northern Star Communications, Notre Dame, IN USA uucp: larry@nstar -or- ...!iuvax!ndmath!nstar!larry 4 inbound dialup high speed line public access system