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BS 6640-1:1987
M00002385
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30 June 1987 Guide to arrangements for DTE to DTE physical connection. General arrangements for DTE to DTE physical connection using V.24 and X.24 interchange circuits
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Open systems interconnection, Computer terminals, Interfaces (data processing), Data transmission, Physical layer (OSI), Synchronization, Start-stop transmission, Synchronous transmission, Electric connectors, Electric pins, Numerical designations, Earthing, Circuits, Data processing, Timing circuits