This part is a kind of semiconductor called RS422.

Function of this product has RS-422 AND RS-485 APPLICATION NOTE.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

RS-422 and RS-485 Application Note B&B Electronics Mfg. Co. Inc. P.O. Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Internet Addresses: B&B Home Page: http://www.bb-elec.com Customer Service: sales@bb-elec.com Technical Support: techsupt@bb-elec.com © B&B Electronics - Revised October 1997 RS-422/485 Application Note B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Cover Page Table of Contents CHAPTER 1: OVERVIEW ... 1 INTRODUCTION . 1 DATA TRANSMISSION SIGNALS .. 1 Unbalanced Line Drivers . [ ... ]

RS422 PDF Datasheet Download