Date: Sat, 17 Apr 1999 17:02:36 -0400 (EDT) From: Bill Vermillion <bill@bilver.magicnet.net> To: freebsd-isp@freebsd.org Subject: Re: cheapo 56k hardware Message-ID: <199904172102.RAA85032@bilver.magicnet.net> In-Reply-To: <Pine.BSF.4.10.9904171549460.15061-100000@picnic.mat.net> from Chuck Robey at "Apr 17, 1999 3:52:53 pm"
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Chuck Robey recently said: > I need to find inexpensive access for a very small ISP, to > 56 K lines. The ISP has an aging Livingston router, one that > doesn't support any plug-in modules, so forget any modules > from Livingston. Is there some kinda of system that might get > 56 K modems to talk directly to Ethernet, and still be cheapo? The problem you have is that any digital modem at 56K as the ISP is going to require a PRI (most probably) and a device that interfaces. 56K modems can't be used at the ISP because 56K to 56K is limited to 33.3K > If this is a multithousand buck answer, it's not gooing to be > really practical, so please don't make gold plated suggestions > without awfully good reasons behind it (better than just enhanced > reliability). 56K requires a digital link from the ISP through telco, to destination so there is no D/A conversion. The home to ISP is analog and therefore requires a D/A at the home and an A/D at the ISP. Doing two AtoD and DtoA conversions limits you to 33.3. It's not going to be cheapo. You can find all sorts of devices on the used marked below 56K - but the last time I looked the 56K devices were still pretty expensive in comparison. -- bill@bilver.magicnet.net | bv@wjv.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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