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NEMA Publishes ANSI C12.18-2006 American National Standard Protocol Specification for ANSI Type 2 Optical Port and ANSI C12.21-2006 American National Standard Protocol Specification for Telephone Mode
Optical portable computer
2007/3/8
06 Mar 2007，(ROSSLYN, VA)—The National Electrical Manufacturers Association (NEMA) has published ANSI C12.18-2006 American National Standard Protocol Specification for ANSI Type 2 Optical Port and ANS...