What it is and what it connects
The Siemens 6ES7923-0BE00-0DB0 is a pre-assembled shielded round cable purpose-built for SIMATIC S7-300 and S7-1500 systems, linking the front connector module to a connection module via IDC connectors at both ends. Rated at 24 V with a maximum voltage of 60 V, it carries 16 poles across 8 channels — enough to handle mixed digital and analog I/O signals on a single harness. The 4 m length gives you enough reach to route from the rack to a field junction box without splicing. The braided shield and PVC sheath (7 mm outer diameter, 0.14 mm² conductor cross-section) are spec'd for industrial environments where noise on analog loops kills measurement accuracy. That shield is the difference between a clean 4-20 mA signal and a wandering one in a VFD-heavy panel. Operating range is 0 to 60 °C; storage from -30 to +70 °C covers most cabinet conditions short of a steam leak.