Re: Mac+ DTR upside down?

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Article #13593

#13593

From: cetron
Date: Sat, 22 Nov 1986 18:57

12 lines
843 bytes

yep, looks bacward to me!!

After 7 years of hacking RS232/422/423, I posted a sign by me breakout box:

	positive voltage -> binary zero, signal space, CONTROL ON
	negative voltage -> binary one, signal mark, CONTROL OFF

so I vote for a brain-damaged MAC+

-ed cetron

Univ of Utah

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Message-ID: <4035@utah-cs.UUCP>

Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!rutgers!im4u!ut-sally!utah-cs!cetron

References: <1372@umd5>

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Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!rutgers!im4u!ut-sally!utah-cs!cetron
From: cetron@utah-cs.UUCP
Newsgroups: comp.sys.mac
Subject: Re: Mac+ DTR upside down?
Message-ID: <4035@utah-cs.UUCP>
Date: Sat, 22-Nov-86 13:57:48 EST
Article-I.D.: utah-cs.4035
Posted: Sat Nov 22 13:57:48 1986
Date-Received: Sun, 23-Nov-86 07:04:05 EST
References: <1372@umd5>
Reply-To: cetron@utah-cs.UUCP (Edward J Cetron)
Distribution: net
Organization: Center for Engineering Design, Univ of Utah
Lines: 12

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