Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site mit-eddie.UUCP Path: utzoo!linus!decvax!genrad!mit-eddie!smh From: smh@mit-eddie.UUCP (Steven M. Haflich) Newsgroups: net.lan,net.unix-wizards Subject: Re: Bizarre ethernet problems (Interlan & 4.2 BSD) Message-ID: <2837@mit-eddie.UUCP> Date: Sat, 6-Oct-84 18:03:56 EDT Article-I.D.: mit-eddi.2837 Posted: Sat Oct 6 18:03:56 1984 Date-Received: Sun, 7-Oct-84 21:22:53 EDT References: <201@tellab3.UUCP> Reply-To: smh@mit-eddie.UUCP (Steven M. Haflich) Organization: MIT, Cambridge, MA Lines: 15 The first problem, that a 750 reboots when its Interlan tap is (re)connected, is well known and has been reported here before. The tap draws a large surge of 15V power when first connected, and the paranoid powerfail detection in the 750 thinks that there has been a power failure. There is no known fix, except using a different kind of tap. However, once your network is established and stable, will you really need to plug and unplug taps frequently? There is no reason for the transceiver cable to work loose at either end. You should strain relieve the interface end of the cable (with a cable tie) to the CPU chassis near the interface. It is also wise to affix the transceiver to something solid (again, cable ties work well) and then strain relieve the cable near it as well. Most important, make sure those awkward little clips on the transceiver end of the cable are tight and working. They can be "adjusted" a little with a screw driver.