From: utzoo!decvax!ucbvax!helge
Newsgroups: net.micro
Title: Re: RS-232
Article-I.D.: ucbvax.9
Posted: Mon Mar 14 08:27:44 1983
Received: Fri Mar 18 01:41:06 1983
References: sri-arpa.554 teklabs.1796

My experience is that unless you want to use *really* long
cables, there is no need for line drivers on rs232 lines.
dz11's can drive at least 350m (>1000') of good cable without
problems at 9600 baud. 

helge