RS485 的数据传输和接收通过轮流在相同的两条线上发送和接收数据的双绞线实现。远方计算机、SCADA 系统或 PLC 可通过使用这些端口实现连续的监测和控制。为了减小噪声干扰产生的误差，建议使用屏蔽双绞线。应确保极性的正确，例如保护装置必须将所有的 RS485 “＋”端子和所有的 RS485“－”端子分别连接在一起。COM 端子应连接到屏蔽的公用线 （如果提供）上。为避免环流，屏蔽应单点接地。

ABB CONTROL 120V COIL SIZE W4 3-POLE WELDING ISOLATION

MITSUBISHI ELECTRIC 3-PHASE 105V 0.7A 100W AC SERVO MOT

BRADY 8257-00 Y10249 4″X90′ BLACK ON WHITE B580 LABEL A

BLOCK 48V 10A AC/DC POWER SUPPLY B0112030

ALLEN BRADLEY 1771-HD TEACH PENDANT, REPAIRED

ENERPAC SLRD-201 4200LB LOWER FLANGE SWING CYLINDER, NI

ROBOHAND RPC-314 28″ STROKE TRIPLE WEDGE PARALLEL GRIPE

FANUC LTD SERVO AMPLIFIER / TYPE: A06B-6058-H006

IFM EFECTOR OAH-CPKGT/US100 OA8517 PHOTOELECTRIC SENSOR

STANLEY A30LRA2-3 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNNE

STANLEY A30LRA2-2 ANGLE PNEUMATIC NUT RUNNER

STANLEY A30LAT-4 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNNER

STANLEY A30LRA2-5 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNNE

STANLEY A30LRA-5 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNNER

STANLEY A30LRATA-5 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNN

STANLEY A30MA-6 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNNER

STANLEY A30LRATA-9 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNN

STANLEY A30LRATA-9 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNNE

STANLEY A30LAT-10 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNNER

STANLEY A30LRATA-12 ?” DRIVE ANGLE PNEUMATIC NUT RUNNER

STANLEY A30LRATA-16 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNN

STANLEY A30LA2-20 3/8″ DRIVE ANGLE PNEUMATIC NUT RUNNER