The 6ES7923-5BD00-0DB0 is a pre-assembled shielded round cable purpose-built for the SIMATIC S7-1500 system, linking the front connector module on the I/O card to a 50-pole connection module. Both ends terminate in 50-pole IDC connectors, so it's a drop-in wiring harness for high-density digital and analog I/O banks — no field stripping or crimping required. The braided shield and PVC sheath (11 mm outer diameter) handle the electrical noise environment of a control cabinet, and the 0.14 mm² conductors are sized for signal-level currents, not power.
Rated at 24 V and tested to a maximum of 60 V — that covers the standard 24 VDC control voltage used across the S7-1500 I/O modules, with headroom for transient spikes up to 60 V. The 3 m length is enough to reach from a mid-panel card to a nearby connection module without excess service loop; for longer runs you'd need a different order code. The 50 conductors match the 50-pole front connector on a 32-channel I/O module, leaving the remaining poles for shielding and spare signals. Operating temperature range is 0 to 60 °C, storage from -30 to +70 °C — fine for a standard IP20 cabinet environment.