From: utzoo!decvax!cca!hplabs!hpda!ld@sri-unix
Newsgroups: net.dcom,net.misc
Title: How long is a break `character'\?
Article-I.D.: hpda.229
Posted: Thu Sep  9 23:40:58 1982
Received: Sun Sep 12 02:58:29 1982

Is there an ANSI standard, or any other standard, that specifies
how long a break `character' is supposed to be (200 ms? 250 ms?).  Logically,
I understand why it should be greater than 200 ms, but I cannot find any
documentation that explicitly spells this out (it seems to me that somewhere
in my library, which has been neatly filed in the attic, I read a document
that stated it had to be greater than 200 ms.)

The reason I ask is because some of our data comm people want to specify
that a break is two character-times in duration (very short at 9600 baud).
This could cause uucp to burp, because it sends break characters to
indicate speed changes.  If an indial line is 110 baud, and a 9600 baud
sender transmits a 2 character break, it will look like a hiccup to
the receiver.  Before I go to battle with the data comm staff at HP,
I would like to have some ammunition.

		Thanks,
		Larry Dwyer
		Hewlett Packard Co.
		ucbvax!hpda!ld