Login Problem (250' RS-232 Lines)

Dan Kary nckary at ndsuvax.UUCP
Mon Sep 30 13:00:28 AEST 1985


> With all the responses about time delays and pull-down resistors I am
> supprised that no one offered the most obvious sollution.  Connect the
> modem control signals.
>					Jerry Aguirre @ Olivetti ATC
> {hplabs|fortune|idi|ihnp4|tolerant|allegra|tymix|olhqma}!oliveb!jerry

We are unable to use the modem control lines because we are using DEC
DMF32 serial line controllers.  Each controller has 8 async lines, 1 sync
line and parallel input and output ports.  The modem control lines are
brought out to the distribution panel only for lines 0 and 1.  Lines 2
thru 7 have only TXD, RXD and Gnd.  I think I mentioned that in the original
article, which was posted to net.dcom.  The symptom has been cured by adding 
a 1 second delay in getty after printing the login message, followed by 
flushing the input.  Many thanks to all responders.

	Dan Kary
	North Dakota State University
	ihnp4!dicomed!nckary



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