Data transmission circuit
The invention relates to a data transmission circuit, which comprises a direction controller and a RS485 communication interface circuit, which are electrically connected. Wherein, said direction controller controls the receiving and sending conditions of said RS485 communication interface circuit....
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention relates to a data transmission circuit, which comprises a direction controller and a RS485 communication interface circuit, which are electrically connected. Wherein, said direction controller controls the receiving and sending conditions of said RS485 communication interface circuit. The invention is characterized in that: one end of said direction controller via single data line reads the signal of signal resource, via which to control the receiving and sending conditions of said RS485 communication interface circuit; when said RS485 communication interface circuit is in sending condition, the invention sends the signal of signal resource out, while said signal is the control signal and the transmission signal. And the invention can via single data line connected to the signal resource realize the receiving and sending of whole signals. |
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