描述
为了确保通讯成功，DCS生产厂家无论是电缆，还是通讯口，都把它们做成冗余的。一条网络发生故障，另一条备用网络立即投入运行。备用方式各种DCS有别。
Edwards DP40 Multi-Stage Dry Vacuum Pump
Edwards DP40 Multi-Stage Dry Vacuum Pump
NIB GOULDS ITT PUMP MODEL 3656 SIZE 1 1/2 X 2-6 W MOTOR
SEIKO SEIKI SCU-H1000L TURBO MOLECULAR PUMP CONTROL UNI
Varian Model:927001 Vacuum Pump Tubing
Osaka Vacuum TG1303 Compound Turbo Molecular Pump Oil
