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CONTROL APPARATUS FOR DIRECT CURRENT-DIRECT CURRENT CONVERTER OF LAN CARD
CONTROL APPARATUS FOR DIRECT CURRENT-DIRECT CURRENT CONVERTER OF LAN CARD
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机译：局域网卡的直接电流-直接电流转换器的控制装置
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摘要
PURPOSE: A control apparatus for a DC-DC converter of a LAN(local area network) card is to allow the DC-DC converter to disable with a signal applied to a light emitting diode during the operation of a 10BASE-T without using a jumper. CONSTITUTION: An ethernet controller(10) controls a system, performs a media access control and a logical link control, and checks the connecting state of a 10BASE-T. A filter and a transformer(20) are consisted to transfer a link bit pulse to a physical layer, and the 10BASE-T comprises a connecter(30) connected with a communication cable(70). A light emitting diode(60) is connected to a link terminal of the ethernet controller. A transformer(40) is consisted to connect with a 10BASE-2, and a 10BASE-2 multiple connecting unit(50) consists of a DC-DC converter(51) and a transceiver. The DC-DC converter has no disabled signal terminal.
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