KTV系统USB读卡器驱动
http://www.yjiasoft.com/down/YJ505UDRV.rar
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感应IC卡读卡器开发包
http://www.yjiasoft.com/down/M1Demo353.4.rar
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视易转换器RJ45接线图
http://www.yjiasoft.com/down/盈佳505视易机顶盒接线图.pdf
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