必须避免使用星型或短引线型方式进行连接。雷击和接地浪涌可在相连的远方通信终端间引起很大的瞬时电压差，因此，在两个通信端口内部都配备了浪涌保护装置。具有光耦合数据接口的隔离电源同时还可以减小噪声耦合。为大限度地保证可靠性，所有设备应安装类似的暂态保护装置。同时，如下图所示， RS485 电路的两端也应和一个阻抗进行端接。

MASTER PNEUMATIC AUTOMATION PACS 7300000-CC MULTIPLE PO

FANUC A03B-0801-C013 RACK W/ 9 MODULE I/O & INTERFACE

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HONEYWELL W973E1005 24VAC 50/60HZ 8VA ECONOMIZER AND MO

PARKER RG2AN00301 3″ 2AN SERIES GLAND CARTRIDGE KIT, NI

MORSE 35RW POWERGEAR GEAR REDUCER, 40:1 Ratio

ROTOR TOOL SE52PR3 ?” HEX DRIVE PISTOL GRIP PNEUMATIC

ROTOR TOOL SE52PR10 ?” HEX DRIVE PISTOL GRIP PNEUMATIC

ROTOR TOOL SW52PY18 ?” DRIVE PISTOL GRIP PNEUMATIC NUTR

ROTOR TOOL SE22P33 ?” HEX DRIVE PISTOL GRIP PNEUMATIC N

ROTOR TOOL SE22PR21 ?” HEX DRIVE PISTOL GRIP PNEUMATIC

ROTOR TOOL SE22PR21 PISTOL GRIP PNEUMATIC NUTRUNNER NO

ROTOR TOOL E01P015 PISTOL GRIP PNEUMATIC NUTRUNNER W/

ROTOR TOOL S100PRY80 ?” DRIVE PISTOL GRIP PNEUMATIC NUT

ROTOR TOOL E01P-009 PISTOL GRIP PNEUMATIC NUTRUNNER W/

ROTOR TOOL S01PR6M-01 PISTOL GRIP PNEUMATIC NUTRUNNER

ALLEN BRADLEY 500-BOD94 SIZE 1 AC CONTACTOR, SERIES B,

FANUC LTD SERVO AMPLIFIER / TYPE: A06B-6058-H005