Date: Wed, 21 Aug 2002 11:20:50 -0600 From: "Jim McAtee" <jmcatee@mediaodyssey.com> To: "Work" <work@thuntek.net>, <freebsd-newbies@FreeBSD.ORG> Subject: Re: How important is Physical? Message-ID: <042b01c24937$18a3c490$272fa8ce@jim> References: <003e01c24929$daecbd30$2c02000a@mikebox>
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----- Original Message ----- From: "Work" <work@thuntek.net> To: <freebsd-newbies@FreeBSD.ORG> Sent: Wednesday, August 21, 2002 9:42 AM Subject: How important is Physical? > Hello, 1st post. I work for an ISP that runs Freebsd unix and > we also service several Office complexexes. From CATV background, > we always measured the DB Signal strength to determine how far a cable > can run, and how many units you can serve, without requireing > amplification. In networking are these mattters important? If so, how > many computers can you run out of 1 network, and what unit of measure > do you use to determine signal strength? Also, how important is > Grounding? In addition to the ground or neutral circuit that is the > 3rd prong on a normal 110 volt plug? You can answer the in the group > or to me at work@thuntek.net . thanks > > Mike Harris Are you just talking about ethernet networking? It's pretty much a no-brainer. If you're looking at Cat5, just comply with the standards of less than 100 meters per run (including patch cables at either end) as well as some other wiring recommendations such as the minimum radius to cable bends, and avoiding running cable near electrical wiring. Testing equipment is available to test and verify the compliance of individual runs. There's no physical limitation that I'm aware of (other than network bandwidth and switch speed) to the number of machines on a Cat5 ethernet network. Jim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-newbies" in the body of the message
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