Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!mailrus!accuvax.nwu.edu!nucsrl!telecom-request From: Edward_Greenberg@cso.3mail.3com.com Newsgroups: comp.dcom.telecom Subject: Wiring Standards for Data on RJ45 Message-ID: <5408@accuvax.nwu.edu> Date: 20 Mar 90 16:12:00 GMT Sender: news@accuvax.nwu.edu Organization: TELECOM Digest Lines: 17 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 10, Issue 188, Message 7 of 10 I'd like to wire some RS-232 circuits from desks back to a wiring closet using modular hardware at the desk end. We will be terminating a six wire connection on an RJ45 (8 pin modular jack) under each desk, and then use a modular cord (with appropriate ends) to connect the jack to a DB25 or DB9 shell, thence into the back of a PC. Is there any standard for the appearance of the standard RS-232 signals on the RJ45, or should I just invent something that works. Note: Why 8 pin jacks with six wire circuits? We can't seem to get some of the parts with RJ11 jacks. Thanks, Ed Greenberg edg@cso.3mail.3com.com