“c”列端子具有负极性。由于一个独立的输入 / 输出信道需要一整行，因此信道的名称用模块的插槽位置和行号来表示。每个模块同时需要外部接地总线连接到端子 8b 上。电流输出需使用一端接地的双绞合屏蔽电缆。下图举例说明了保护装置的传感器模块类型 （5A，5C，5D，5E, 和 5F）和信道配置。
ALLEN BRADLEY 1336-MOD-G2 REMOTE I/O ADAPTER DRIVE OPTI
ALLEN BRADLEY 1794-IP4 SERIES B 12-24VDC FLEX I/O 4 CHA
ALLEN BRADLEY SP-135766 TRANSISTOR, NIB
ALLEN BRADLEY 1720-N56 SERIES A 4-DIGIT DIGITAL READOUT
SEW EURODRIVE KT47TDT90L4BMG2HRTH1S-KS HELICAL-BEVEL GE‘
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KEYSTONE CONTROLS F79E-006M PNEUMATIC ACTUATOR W/ BUTTE
SICK AGSE1200-1211 APPROX 52 3/4″ 110/230 VAC LIGHT CUR
GENERAL ELECTRIC DASKEB310 FLEX-A-POWER BUSWAY, 600 V,
FANUC A05B-2350-C091 E-STOP UNIT ROBOTIC SWITCH, NNB
LAMBDA LFS-46-24 REGULATED POWER SUPPLY, NNB
JOINT PRODUCTION TECHNOLOGY JPT-39742-1 SUPPORT ARBOR A
MANNESMANN DEMATIC AG DEMAG DKUN 1-125 K V2 F4 DUAL SPE
PHD INC. 15340-1-3031 150 PSI ANGULAR PNEUMATIC GRIPPER
FANUC ROBOTICS SERVO AMPLIFIER UNIT A06B-6058-H221
SANYO DENKI KAWASAKI 3.1KW BL SUPER SERVO MOTOR P60B132
FORCE CONTROL MB-056-227-05 POSI-STOP BREAK, NIB
GE FANUC SERIES 16-TT 9″ CRT / MDI OPERATOR INTERFACE U
INDRAMAT OPERATOR INTERFACE PANEL SOT02-E2A-FW / FWA-SO
