RD 信号终端电阻必须连接到通讯线末端单元上。该终端通过CPU上通讯 口内的跳线连接D型插头内 9 针和 10 针而实现.地电势: 如果希望系统正常运行，不是连接到同一电源的多个单元必须有共同 接地电势点或进行接地隔离。

ALLEN BRADLEY 1771-OZ CONTACT OUTPUT MODULE

GENERAL ELECTRIC UG5 BALLAST ASSEMBLY FOR UNIGLOW LUMIN

TELEMECANIQUE LP1D0910BD CONTACTOR, NIB

DWYER 2003C Magnehelic DIFFERENTIAL PRESSURE GAUGE, NIB

I-T-E ITE SIEMENS SN-423 / SN423 F DISCONNECT VACU-

NASON SM-1C-15F/EL LOW PRESSURE SWITCH NNB

SCR POWER CONTROL SPECIALIST PHASETRONICS 1P1-1220-KC R

MARTIN 5016COV COVER W/ 5016 COUPLING, NIB

ITS LC2-8 LED LANE CONTROL SIGNAL

UNIVERSAL FLOW MONITOR 01.5GM-4-35V.9-?A3NR FLOW METER,0

UNIVERSAL FLOW MONITOR SN-ASF5GM-4-300?V.9-A3NR FLOW MET

UNIVERSAL FLOW MONITOR 01GM-4-335V.9-A?3NR FLOW METER, 0

CUSTOM MOTORS INC CMR23M-C RESOLVER CABLE,

SIEMENS HF361 30 Amp FUSIBLE SAFETY SWITCH, NIB

ALLEN BRADLEY 150-N84L SERIES A 480 VAC SMART MOTOR PRO

TURCK BI 5U-MT18H-AP6X2-?H1141/S395/S158?9, PROX SWITCH,