High speed data signal interface device and method using LVDS technology

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interface of an optical transmission device. In particular, a low voltage differential signaling (LVDS) technology, which is an interface standard between devices, is applied to a board-to-board interface of a high speed data signal transmission device. will be. The present invention provides a board-to-board interface device in a high-speed data transmission apparatus including a plurality of boards, wherein each board multiplexes a plurality of input channel data signals to be transmitted, converts them into LVDS signal levels, and transmits them to the corresponding boards. One or more transmit LVDS channel link IC chips, and one or more receive LVDS channel link IC chips that receive multiplexed LVDS signals from the board, convert them to the original signal level, and demultiplex them. By interfacing with an LVDS channel link IC chip, the conventional method of directly multiplexing and interfacing to an ELC signal can solve the problems.