In message <ofade54b4f.d29dba7a-on85257537.00086866-85257537.00090...@mck.us.ra y.com>, Joseph M Gwinn writes:
>The effect of differing ground potentials on a shielded cable is to pull a >large current through the shield, [...] The correct enginering solution is to use twinax, ground the shield in one end only and transformer-couple the signal at least in the other end from the grounding. Look at IBM's 5250 terminal hookup for an school book example of getting it right. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
