描述
如接线端或导线接触不良，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。
Beckman JA-13 Rotor, Fixed Angle, 4-Tube, 13,000RPM
MET BEL Metal Bellows MB-601 High Pressure Vacuum Pump
Micro Memory MM-6296 DRAM Memory Module VME Board
Beckman JA-14 Rotor, Fixed Angle, 6 x 250 mL, 14,000RPM
Micro Memory MM-6496 DRAM Memory Module VME Board
Konica Minolta PS3000 Publication Scanner
Thermo Scientific Revco ULT350-3-A30 Ultra-Low Freezer
Wafab WHRV WHRV1222231-134A Temp Controlled Circulator
