larry@nstar.UUCP (Larry Snyder) (09/18/89)
I need multiple serial ports to support multiple high speed modems doing bi-directional communications. The stock driver (for standard non-smart serial ports) works perfect under SCO. I need suggestions as to which multiport boards really do work supporting bi-directional communications. Computone boards don't work correctly - Digiboard dumb boards appear to work fine - but I have a feeling that in my application I need the speed of smart ports - but then that means using a third party driver. -- Larry Snyder SCO Xenix 2.3.2 '386 uucp: iuvax!ndcheg!ndmath!nstar!larry The Northern Star Usenet Distribution Site HST / PEP / V.22 Notre Dame, Indiana USA Home of the fighting Irish!
root@nebulus (Dennis S. Breckenridge) (09/21/89)
larry@nstar.UUCP (Larry Snyder) writes: >I need multiple serial ports to support multiple high speed modems >doing bi-directional communications. The stock driver (for standard >non-smart serial ports) works perfect under SCO. >I need suggestions as to which multiport boards really do work >supporting bi-directional communications. Computone boards don't >work correctly - Digiboard dumb boards appear to work fine - but >I have a feeling that in my application I need the speed of smart >ports - but then that means using a third party driver. I use Consensys Powerports up here. I have tested many ports cards and have found the Powerports to be the most reliable. It supports bi-directional hardware flow control that does not "skid" . It has other features like powerview (multiple login sessions on one dumb terminal (not 'X' or layers(1) )) and transparent printing. It does not eat an interrupt and fits either into the DOS ram space or out in REAL memory at the 14-16 meg window. I have four Microcom 9624's runing off it as well as a 5620 terminal and most of my Ham radio gear and I have not found a problem with it yet. They are in Toronto, Canada and thier phone number is 940-2900 -- Dennis S. Breckenridge Whats that you say? "Goomba!" Toronto, Canada (416) 733-1696
larry@nstar.UUCP (Larry Snyder) (09/21/89)
> I use Consensys Powerports up here. I have tested many ports cards > and have found the Powerports to be the most reliable. It supports > bi-directional hardware flow control that does not "skid" . It has > other features like powerview (multiple login sessions on one dumb > terminal (not 'X' or layers(1) )) and transparent printing. It does > not eat an interrupt and fits either into the DOS ram space or out > in REAL memory at the 14-16 meg window. I have four Microcom 9624's > runing off it as well as a 5620 terminal and most of my Ham radio > gear and I have not found a problem with it yet. > They are in Toronto, Canada and thier phone number is 940-2900 Well - latest news - I bought one of the Digiboard PC8i (12.5 mhz 80186 - their top of the line 8 channel board) and the drivers worked perfectly with serial terminals and one way modem communications - but big problems with bi-directional communications like the dropping of DTR on ALL 8 CHANNELS (even in the middle of a UUCP transfer) when changing from outgoing back to incoming on one of the modem lines. The Digiboard went back yesterday. Yesterday, I traded some hardware for a Hostess board - an 8 channel dumb serial card that is supported under SCO (BTW - the SCO tech reference notes are incorrect on the address of the ports - I had to go into /usr/sys/io/sioconf.c and check the address). Anyhow - this board (even though no smarts) is working dandy under SCO. Now I get to see (if and how much) a dumb port can tie up the system! Now I can move on to multiple controllers! -- Larry Snyder SCO Xenix 2.3.2 '386 uucp: iuvax!ndcheg!ndmath!nstar!larry The Northern Star Usenet Distribution Site HST / PEP / V.22 Notre Dame, Indiana USA Home of the fighting Irish!