Date: Mon, 24 Mar 97 16:40:41 CST From: Joe Greco <jgreco@solaria.sol.net> To: stefan@exis.net (Stefan Molnar) Cc: spork@super-g.com, richard@pegasus.com, freebsd-isp@freeBSD.ORG, freebsd-hardware@freeBSD.ORG Subject: Re: reliable modems? Message-ID: <199703242240.QAA19919@solaria.sol.net> In-Reply-To: <Pine.LNX.3.91.970324171954.6035B-100000@tarpon.exis.net> from "Stefan Molnar" at Mar 24, 97 05:23:16 pm
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> > I'm sitting about 30 meters from a room where there are TWELVE HUNDRED > > Courier modems. A local ISP used a bit of creativity and developed a > > nifty way to set up arrays of 120 Courier modems, complete with phone, > > power, and network wiring for the four Portmasters on each array. > > > It's a bit scary to see 120 modems all powered by a single step-down > > transformer (10 identical racks). The modems kick off a bit of heat, > > too. On the other hand, it's very easy to debug, and is a relatively > > inexpensive per-port solution to the problem. > > We are doing the exact same thing. I think they are cooler looking with > a big old transformer do it all. More chance for carnage if anything goes wrong, though. :-) > > It's quite impressive to see a telco demarc for 1200 analog lines. > > That I would like to see, but I will stick with all the fiber lines. You need copper for standard Couriers. (However, the local telco long ago gave up trying to provide copper, they buried a LiteSpan 2000 in the back room... so there's only 50 feet of copper between the modems and telco equipment). ... JGhelp
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