This is a pre-assembled shielded round cable — part number 6ES7923-5BF00-0DB0 — purpose-built for the SIMATIC S7-1500 PLC system. It connects the front connector module on the I/O card to the connection module out in the field, carrying both digital and analog signals across its 50 conductors. Rated for 24 V nominal operation with a maximum of 60 V, the cable handles the typical 24 VDC control voltage used across S7-1500 I/O modules — no special derating needed for standard digital or analog signal levels. The 5-meter length gives enough reach to bridge the gap between a control-panel-mounted rack and a field junction box or marshalling cabinet without excess slack to manage.
Construction and signal integrity
Fifty conductors, each 0.14 mm², inside an 11 mm PVC sheath with a braided shield. The IDC connectors at both ends (cable side and connection module side) terminate all 50 poles in one shot — no individual wire stripping or screw-clamp torqueing. That saves panel-build time and eliminates a wiring-error point on dense I/O racks.