ghb@ecsvax.UUCP (04/18/84)
If you have tried to use a T-switch to link a couple of PC's with a parallel printer and had problems, you might be using the wrong T-switch. It seems that most of the boxes out there strap pin #1 (protective ground) common to all the connected devices. This doesn't work with the PC parallel configuratioon which uses pin #1 for Data Strobe and pin #25 as the ground. Now BLACK BOX Corp. has a series of three T-switch boxes that have been built for the PC parallel port. There is a 2 to 1 box ($104), a 4 to 1 box ($169), and a cross-over box ($159). Their address: BLACK BOX Corp. P.O.Box 12800 Pittsburgh, PA 15241-9980 412/746-5500 As is usually mentioned at the end of these blurbs: I don't work for BLACK BOX and do not own any of their stock. I have been very satisfied with their delivery response time and after-sales support. George Brett ...decvax!mcnc!ecsvax!ghb NCECS POB 12035 RTP NC 27709 (919)549-0671