The Siemens 6ES7922-4BC50-0AD0 is a front connector for the SIMATIC S7-400 system, specifically a 48-pin strip with 46 pre-terminated single cores. It's the wiring interface between the I/O module and field devices, designed for digital I/O modules using screw-type terminals. Each core is 0.5 mm², H05V-K rated, and runs 2.5 m from the connector body. The cable sheath is blue PVC with a 2.2 mm outer diameter, and cores are numbered consecutively from 3 to 48 for straightforward termination. Rated for 24 V nominal, with a maximum of 30 V — this matches the standard S7-400 backplane voltage for digital I/O. The 46 channels suit modules with up to 46 I/O points, leaving two pins unused on the 48-pin header.
It's a catalog-standard item for S7-400 installations — not a special or limited-run variant.
Integration Notes
The connector mates with the 48-pin header on S7-400 digital I/O modules (6ES7492-1AL00-0AA0). Screw terminals on the enclosure side accept the field wiring; the pre-wired cores eliminate on-site crimping for the module connection. The blue sheath (RAL 5010) is standard Siemens color coding for S7-400 I/O cabling.