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From: moroney@jon.dec.com.UUCP
Newsgroups: comp.dcom.lans
Subject: Re: Ethernet Cable voltages
Message-ID: <8605@decwrl.DEC.COM>
Date: Fri, 13-Mar-87 23:21:30 EST
Article-I.D.: decwrl.8605
Posted: Fri Mar 13 23:21:30 1987
Date-Received: Sat, 14-Mar-87 20:06:17 EST
Sender: daemon@decwrl.DEC.COM
Organization: Digital Equipment Corporation
Lines: 5

Ethernet runs at 2V peak-peak.  Idle is 0 volts.  The Ethernets I've scoped
actually have the voltage swing from 0 to -2 volts, though I believe some
tranceivers have a voltage swing from +1 to -1 volts.

-Mike Moroney