Siemens 6ES7194-2LH03-1AA0 Automation Connection Component. Siemens 6ES7194-2LH03-1AA0 is the exact manufacturer order number for a automation connection component in the SIMATIC ET 200 Distributed I/O portfolio. Siemens describes this exact reference as: Power cable M8, both ends assembled with M8 connector and M8 socket, 4-pole, length 0.3 m. The verified manufacturer lifecycle record is PM300: Active Product.