The Siemens 6ES7923-5BG50-0CB0 is a pre-assembled round cable purpose-built for SIMATIC S7-1500 racks, linking the front connector module to the connection module on digital I/O cards. It carries 50 conductors at 0.14 mm² each, terminated with IDC connectors at both ends, and runs 6.5 m between the two points. Rated at 24 V with a maximum of 60 V, it supports 32-channel digital input or output modules — the channel count matches the 50-pole interface because the remaining poles handle commons and shields.
Wiring and integration
This cable uses a 50-pole IDC connector on the cable-side front connector module and a matching 50-pole connector on the connection module. The round PVC sheath measures 10.3 mm outer diameter, black, with a 6.5 m fixed length — no field trimming, so the routing path must accommodate the full run. The 0.14 mm² conductor cross-section handles signal-level current for S7-1500 digital I/O; it is not rated for analog signal transmission.