China National Standards

China 4800bit Industry Standards English PDF List

  •  China "4800bit" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    SJ 20040-1992 Generic specification for 4800bit/s wire voice-band modems
    4800bit/s有线话带调制解调器通用规范    		 China Electronics Standards
    4800bit
    English PDF

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