Date: Sun, 18 Jul 2004 16:58:44 +0200 From: Marc Fonvieille <blackend@freebsd.org> To: Warren Block <wblock@wonkity.com> Cc: freebsd-doc@freebsd.org Subject: Re: docs/69225: PATCH-Serial comms chapter has wrong acronym for Transmit Data Message-ID: <20040718145844.GE84500@abigail.blackend.org> In-Reply-To: <20040718071535.V20959@wonkity.com> References: <200407181300.i6ID0QXA032696@freefall.freebsd.org> <20040718071535.V20959@wonkity.com>
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On Sun, Jul 18, 2004 at 07:28:56AM -0600, Warren Block wrote: > > > >I'd change SD for TD which is the correct term in our case (or TxD, but > >in this case RD must be changed for RxD). TD is the data transmitted by > >the DTE (our computer) to the DCE (modem), RD is data to DTE from DCE. > >These descriptions come from a time where half duplex was common. > >s/Transmitted/Transmit/ etc. is not mandatory, in fact both versions are > >used. > > You're right, but I'd never seen the "Transmitted" form until a web > search this morning. > I just read ITU-T V.24 recommendation (which is identical to RS232 for signal description and names), they use Transmitted and Received data. > >So I'd keep the description but I'd s/SD/TD which is correct. > > Now that I look at it more, TxD/RxD are used earlier in the chapter, and > are the more correct way to go. I think these are probably how they are > listed in the EIA spec. > [...] I don't know for TxD/RxD, I don't have access to any recommendation stating it's TxD not TD. Marc
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