PSSu K F FAU B 312420 PSSu, compact module, failsafe, special module, analysis unit forPSENvip, basic version, 1 interface PSENvip receiver, 1 interface PSENvip transmitter, 4 inputs, 2 test pulse outputs 0.25 A, 2 outputs, 1.75 A, single-pole, plus-switching, short circuit-proof, overload-proof, free from feedback, 2 outputs, 3 A, dual-pole, short circuit-proof, overload-proof, high discharge voltage, free from feedback, 2 Ethernet interfaces, 100 MBit/s.