Location surveillance digital word transfer technique having processor with adaptor telephone line passing parallel/series converter NRZ digital words and biphase mode radio link switched.

摘要

The transmitter digital word transfer technique has processing (1) adapted to pass digital signals to a telephone transmission line (52) or to a radio transmission line (60). The adaptor (2) can directly load digital words in an NRZ mode using a parallel-series converter and also a second biphase mode applying digital words to the input of a second line attached to a radio link using a switch (4).