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ST Modules (Smart Terminals) 4.2 Structure 4.2.1 Structure of an ST Compact Station 2 IN U S T E R IB S T M E 2 4 D IO U S B A E 1 L D 2 3 4 5 6 7 8 K 1 K 2 nt C C B A C C K 3 K 4 K 5 K 6 K 7 K 8 ne 8 d ig ita l In p u t , 8 r e la y O u tp u t 2 4 V D C , M o d u le Id e n t.: 1 9 1 9 in ec om 8 po 1 0 on l Figure 4-1 IN , O rd . N o .: 2 7 5 1 8 3 6 U s 1 U L U L 8 /8 R /3 B T E R F F B s. F F B 3 E T E R U S E IN U S E U S E U S co m 1 4 U S U s 1 E 1 U s 2 E 2 U L C C B A 1 2 3 4 5 6 7 8 6 5 7 5 1 0 9 B 0 0 1 Structure of an ST compact station 1 Incoming remote bus 7 ST cable (supplied with the module) 2 Outgoing remote bus 8 Module 1 3 Dummy plug 9 Bus terminal module (BK) 4 Grounding terminal 10 End clamp 5 Protective earth ground 6 Module 2 Use a dummy plug to isolate the open local bus connection of the last ST module. The dummy plug is delivered with each ST BK module. 6000AC02 4-5
