Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!nrl-cmf!mailrus!tut.cis.ohio-state.edu!rutgers!okstate!pbox!romed!mfbbs!marc
From: marc@mfbbs.UUCP (Marc Randolph)
Newsgroups: comp.dcom.modems
Subject: Re: USR Courier HST modems and pauses.
Message-ID: <5060@mfbbs.UUCP>
Date: 12 Apr 88 02:31:55 GMT
References: <8804020147.AA07896@ucbvax.Berkeley.EDU>
Reply-To: marc@mfbbs.UUCP (Marc Randolph)
Organization: usr/bbs development center, Tulsa, Ok
Lines: 22

In article <8804020147.AA07896@ucbvax.Berkeley.EDU> 27313853@WSUVM1.BITNET (Wim Bonner) writes:
>I beleive the reason for the pauses in transmission with the HST modems
>are due to the single duplex nature of the modem.

	Data CAN flow in both directions at the same time.  According to the
HST manual, page 1-1: ..."data flows in one direction at 9600 bits per second
and 300 bits per second the other".

>Each time you have to switch directions in the flow of data, the modems
>have to agree to stop, and send in the other direction.

	The only switching that takes place is who has the high speed channel
and who has the low speed channel.  If the modem with the low speed channel
has a large amount of data to send, the channels will switch around so the
large amount of data can get through quicker.
	
>Wim Bonner                                                  (King-Rat)
>Acknowledge-To: <27313853@WSUVM1>

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 Marc Randolph     UUCP: ...!rutgers!pbox!romed!mfbbs!marc
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