The Siemens 6ES7194-2MH50-0AA0 is a shielded 4-core bus cable pre-assembled on both ends with 2× M8 4-pin plugs, 5 m long, intended for connecting ET-CONNECTION nodes — specifically SIMATIC ET 200AL — in IP65/67 field-mounted I/O drops. The PUR sheath is halogen-free and silicone-free, so it's clean for semiconductor, food, or pharma lines where contamination risk matters. Rated for the full -40 to 80 °C ambient range, so it can live in a cold warehouse freezer or next to a hot machine baseplate without a separate environmental box.
Mechanical and cable-carrier readiness
Cable carrier (drag chain) qualified for 1 million bending cycles at a 100 mm radius, 4 m/s speed, 4 m/s² acceleration — a genuine continuous-flex specification, not just a static bend test. For single bends it accepts a 20 mm minimum radius; for repeated flex, 40 mm. The shield is an overlapped aluminum-clad foil plus a braid of tin-plated copper wires — covers both EMC radiated susceptibility and conducted noise on the signal pairs. Core insulation is PE; each inner conductor is 0.5 mm on a 1 mm core diameter, with a 5 mm cable OD overall.
Because it's a pre-assembled cable, the length is fixed at 5 m. If your cabinet-to-node distance differs, factor that into the cabling topology — no field splicing of the M8 connector.