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Article #14

Re: Standard pinout for V.35 in DB25 connector?

#14
From: Terry Kennedy, Operations Mgr.
Date: Tue, 30 Jan 1996 10:41
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In article <4eg9hv$9bv@dub-news-svc-1.compuserve.com>, 75522.1603@compuserve.com (Michael W Winslow) writes:
> By the way, I absolutely HATE those V.35 connectors *grr* (rumor has
> it that the inventor of the connector is widely sought for a public
> lynching)

  I suspect this was an existing connector type that got used for this
purpose because it couldn't be confused with anything else. Similarly,
Dataproducts used the 50-pin Winchester MRAC connector (looks just like
a V.35 except it has 50 pins instead of 34 (or is it 36 - I don't re-
member).

  Lots of "old" interfaces chose connectors we'd consider wildly inap-
propriate today - V.35 as we're discussing here is a trivial problem.
Consider the IBM channel attach (bus and tag) spec - 1.5" diameter cable
bundles full of coax cables with a bulky and fragile connector. The only
reason it's still used is for compatibility.

  RS-530 seems to be slowly taking over from V.35. This seems to be a
pretty good choice from both a size and ease-of-procurement point of view.
This is particularly true in the high-density rackmount market, where a
V.35 connector is too fat to use.

	Terry Kennedy		  Operations Manager, Academic Computing
	terry@spcvxa.spc.edu	  St. Peter's College, Jersey City, NJ USA
        +1 201 915 9381 (voice)   +1 201 435-3662 (FAX)
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Newsgroups: comp.dcom.cabling,comp.dcom.frame-relay,comp.dcom.modems
Path: arc1-ca.pugleaf.net!news.new-york.net!spcuna!spcvxb!terry
From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
Subject: Re: Standard pinout for V.35 in DB25 connector?
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Organization: St. Peter's College, US
Date: Tue, 30 Jan 1996 10:41:24 GMT
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