Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!husc6!think!ames!amdcad!cae780!hplabs!sdcrdcf!burdvax!bpa!drexel!jeff From: jeff@drexel.Drexel.edu (Jeff White) Newsgroups: comp.dcom.lans Subject: A question about ethernet boards with thinwire and transceiver outputs Message-ID: <479@drexel.Drexel.edu> Date: Sun, 12-Jul-87 18:52:46 EDT Article-I.D.: drexel.479 Posted: Sun Jul 12 18:52:46 1987 Date-Received: Wed, 15-Jul-87 03:56:18 EDT Organization: Drexel University, Phila., Pa. Lines: 24 Keywords: ethernet thinwire tranceiver I have a question about computers or ethernet boards that have both thinwire (BNC connector) and transceiver (DB-15 conn.) outputs (independent of manufacturer). With one of these boards, are both outputs active at the same time? For example, suppose you are using the transceiver output, with a transceiver attached to a thick wire ethernet cable (typical of most installations). What happens if you now attach 1 or more stations to the same interface board using the thinwire output. Will this 'master' station be able to talk to all the stations on both the thinwire and thickwire cables? Will all the stations appear to be located on 1 common backbone cable, or will the stations on the thinwire and thickwire be isolated from one another? If they are isolated, can the 'master' (common) station act as a gateway? Originally, I just assumed that for some reason both outputs wouldn't be usable at the same time. However, after thinking about it for a while, it seems to me that if there isn't any type of switch which specifically selects one output, that both should be functional at the same time. If replies are via email and I get a definitive answer, I'll summarize the findings to the net. Jeff White Drexel University - ECE Dept. seismo!presby!drexel!jeff