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From: mesa@gumby.paradyne.com (Osvaldo Mesa)
Newsgroups: comp.dcom.telecom
Subject: High Speed S232 (RS562) Anyone?
Message-ID: <8934@accuvax.nwu.edu>
Date: 13 Jun 90 21:33:22 GMT
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Reply-To: Osvaldo Mesa <mesa@gumby.paradyne.com>
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X-Telecom-Digest: Volume 10, Issue 432, Message 8 of 14


Has anybody out there implemented an RS232 type interface with data
rates in the 100 kbits/sec or higher? There is an interface spec soon
to come out (I think) RS562 which uses RS232 type interface with
speeds up to 64 kbits/sec synchronous.

I was looking into how you would implement this interface and it seems
to me that the available RS232 drivers/receivers could not meet the
timing requirements mainly due to slew rate limitation.

Slew rate is limited by RS232 to 30 V/microsecs. but is typically 6
V/microsecs. or less in RS232 drivers.

I am interested if anyone has had any experience related to this
implementation. Please email or call me and I will summarize to the
net if enough responses are received.


Thanks in advance.

Osvaldo A. Mesa	    	 AT&T Paradyne
uunet!pdn!mesa 		 Mail Stop LG-132
mesa@pdn.paradyne.com	 P. O. Box 2826
(813)530-8648		 Largo, FL USA 34649-2826