wg@sunbim.UUCP (Walter Geens) (06/20/88)
I have just seen the messages on the problems of the ethernet connector.O.K.The desing is not a 100% succes but is in use from the ethernet specs 1 from Xerox I think from about 1973! It is even described in the standards. Hard to change I believe. Now a solution. I had myself 2 days of troubles finding out what went wrong adding a terminal server to a network not willing to talk to anything. Believe it or not, it was the connector making no contact at all! What was the real cause? In fact, it is not the slide latch that has to maintainthe contact but the plug itself. What I found was that the problem lies in the cable, not the connector on the server! Under the 2 studs on the cable-connector are in general 2 rings. These rings brings the studs higher up the plug so preventing on many machines to push in the plug far enough. In most cases only the tip of the pins make contact. So if the plug is moved a little you are in deep trouble! All depend on the cable manufacturing. !Remove at least one ring and if necessary all rings from under the studs so that the plugs mate eachother correctly! Then secure the latch. It will work forever and You can take an enjoying holiday. I have done this modi- fication about 30 times here at BIM and at customer sites and never had to return until now. I only can hope You will have the same succes! Boni Dens sunbim!sos
mangler@cit-vax.Caltech.Edu (Don Speck) (07/06/88)
I don't recall any trouble with the slide latches on Xerox 3 Mb/s Ethernet
transceiver cables. The cable was a lot more flexible, though.
Don Speck speck@vlsi.caltech.edu {amdahl,ames!elroy}!cit-vax!speck