Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!usc!julius.cs.uiuc.edu!apple!netcom!cmilono From: cmilono@netcom.UUCP (Carlo Milono) Newsgroups: comp.dcom.lans Subject: Re: Lightning protection Message-ID: <18981@netcom.UUCP> Date: 17 Dec 90 16:19:44 GMT References: <398@alsys1.aecom.yu.edu> Organization: Netcom - Somewhere in the Greater Bay Area Lines: 31 Having worked in C.O.'s and outside plant in my telephone past, I know of the importance of practicing 'safe wiring'. I am now in the computer biz and also had the same questions about protection. I ran across an advertisement in Data Communications (December '90), which pitches LAN Data Line Surge Protectors. [ Disclaimer - I haven't tried them, I don't own stock, and am not employed by them. ] The company is Patton Electronics Co. (301) 975-1000 The products pictured show *only* coaxial adapters, each with a hefty braided ground strap to shunt the transient voltage to chassis ground. The literature says that the protectors use 'sophisticated multi-stage hybrid circuits that include Silicon Avalanche Diodes (SAD's) for quick response and superior protection against trnasients. Patton's SAD's have a typical response time of less than 5ns and can handle repeated surges of 1.5 KiloWatts per wire. Unlike MOV's, Patton's SAD's won't deteriorate in performance as they are subjected to repeated surges." BTW, they are also available for Arcnet LAN equipment. The ad references IEEE std. 802.3 "Network Safety Requirements" 8.7.2 ........... -- +--------------------------------------------------------------------------+ | Carlo Milono: netcom!cmilono@apple.com or apple!netcom!cmilono | |"When a true genius appears in the world, you may know him by this sign, | |that the dunces are all in confederacy against him." - Jonathan Swift | +--------------------------------------------------------------------------+