Description
接线端与实际信号不一致，输入信号线接反、松动、脱落，模块与底座接插不良等。人为的错误如将拨码开关位置放错，通信线接线方向错误或终端匹配器未接等。以上问题只要加强日常维修检查，加强人的责任心是可以杜绝、发现、消除的。
HP InfiniBand 4X DDR PCI-E Dual Port HCA 448397-B21 New
Optiwatt 12 Light Control Box New Lighting Studio
Hangrohe Single Handle Kitchen Faucet New
Ika VWR MV-1 Mini Vortexer Shaker Mixer 230V New
Metrex 1″ Refrigerant Pressure Actuated Valve WCCW New
Perkin Elmer Victor X Emission Filter 595/60 nm New
