| 摘要 |
The present invention relates to an apparatus for transmitting and receiving Manchester coded digital data for IEEE 802.3 Ethernet/Cheapernet type local area network. The apparatus mainly comprises, an isolation transformer, a signal converter with one end connected to one side of the isolation transformer, a receiver with its input connected to the other end of the signal converter, a capacitor located in the receiver and a transmitter with its output connected to the other side of the isolation transformer whereby the isolation transformer and the capacitor may isolate the external terminals from the main circuit. Moreover, the receiver and the transmitter can be integrally formed with a controller and thus to reduce the cost.
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