| 摘要 |
To connect an apparatus to a transmission channel, use is made of a device comprising a first coupling circuit to couple the device to the channel, a second circuit to process the signals received or transmitted and to verify that they conform to a pre-set standard, and a third circuit, normally a microprocessor, connected firstly to the processing circuit and secondly to the apparatus to make it carry out instructions corresponding to the information elements received. The second circuit comprises a control register associated with the type of the signals transmitted and a buffer memory to receive the signals transmitted or to be transmitted. The microprocessor is then made to carry out the instructions loaded into a program memory of this microprocessor as a function of the state of this control register.
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