485 Communication Line Terminal Box
RS-485, also known as TIA-485(-A) or EIA-485, is a standard, originally introduced in 1983, defining the electrical characteristics of drivers and receivers for use in serial communications systems. The standard is jointly published by the Telecommunications Industry Association and Electronic Industries Alliance (TI. The EIA once labeled all its standards with the prefix RS (), but the EIA/TIA officially replaced RS with EIA/TIA to help identify the origin of its standards.
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