Putman, Byron W. <br/><br/>
RS-232 simplified :  everything you need to know about connecting, interfacing, and troubleshooting peripheral devices / 
Byron W. Putman. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  c1987. 
 - xii, 190 p. :  ill. 
<br/><br/><label>ISBN: </label>0137835078 0137834993 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer interfaces--Standards--United States.<br/>Computer interfaces.
<br/><br/><label>LC Class. No.: </label>TK7887.5  / .P87 1987 
<br/><br/><label>Dewey Class. No.: </label>004.6/2�19