yanek@panix.uucp (Yanek Martinson) (04/22/91)
Does anybody have any experience with attaching multiple terminals to a coherent system? Does the polling slow the system down a lot? Is it possible to have more than 4 lines attached, using something like digiboard? Which drivers should be used for that? I can not (temporarily) receive any news so please send email to marob!panix!yanek
gsm@mailgsm.mendelson.com (Geoffrey S. Mendelson) (04/25/91)
yanek@panix.uucp (Yanek Martinson) asks: > >Does anybody have any experience with attaching multiple terminals to a >coherent system? Does the polling slow the system down a lot? Is it possible to have more than 4 lines attached, using something like digiboard? Which drivers should be used for that? > I have a fairly loaded coherent system: Zenith 248 (8mhz 286 0 wait state ram) 2.5 meg of ram 20 meg 28 ms hard disk. com1 19200 (interupt driven) to an hp laser jet. com2 ----- com3 2400 polled for uucp to a local unix system. (always enabled) com4 2400 polled for uucp outgoing calls only (only polled when used. I can be running the printer, and uucping from both polled ports with litle or no degradation in performance. When I have any trouble, it is due to the disk being busy. If the disk is busy, the system dies. If it is not, it zips along. I would not recommend using coherent with more than 4 polled lines. It will get too slow especialy if you have them at a reasonable speed (19.2k). As much as I like coherent, I think at that point you should consider one of the cheap unix ports such as ESIX. >I can not (temporarily) receive any news so please send email to >marob!panix!yanek It would be much easier for the mail to get through if your From: or Reply-To: headers were correct. ------ Geoffrey S. Mendelson geoffrey@mendelson.com (215) 242-8712