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From: bobk@boulder.Colorado.EDU (Bob Kinne)
Newsgroups: comp.sys.ibm.pc,comp.dcom.lans,comp.dcom.modems
Subject: Re: RS-232 vs. V.35
Keywords: maximum distance
Message-ID: <7369@boulder.Colorado.EDU>
Date: 13 Mar 89 17:20:47 GMT
References: <1766@umbc3.UMBC.EDU> <4287@ingr.com>
Sender: news@boulder.Colorado.EDU
Reply-To: bobk@boulder.Colorado.EDU (Bob Kinne)
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Organization: University of Colorado, Boulder
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In article <4287@ingr.com> goodloe@ingr.com (Tony Goodloe) writes:
>In article <1766@umbc3.UMBC.EDU>, smith@umbc3.UMBC.EDU (Fred Smith) writes:
>> ... I would like to know is if there exists an effective "maximum"
>> or standard distance for running CCITT V.35?
>
>If somebody can point me to the page number in (one of the several
>standards associated with) the V.35 spec that talks about distance, I

The max distance and the baud rate are interdependent.  In McNamara's book
"Technical Aspects of Data Communications" on page 240 there is an analysis
with graphs.   Briefly, at 1200, 3000ft shielded or un, at 4800, 1000ft
shielded, 250ft unshielded, at 9000, 250ft either way.