The Siemens 6ES7922-3BD00-0BA0 is a pre-assembled front connector MTA for the SIMATIC S7-300 PCS7 system, carrying 40 signal channels over a 3 m round PVC cable with a 0.5 mm² conductor cross-section. Rated at 24 V with a maximum of 30 V, this assembly is built for analog signal transmission only — digital signals are not supported, so verify your I/O mix before wiring. The field end terminates to a connector strip, while the enclosure side uses a screw-type terminal block — a common arrangement for PCS7 marshalling panels where the front connector stays captive on the module and the field cable lands on a separate terminal row.
This cable mates with the 40-pole front connector 6ES7392-1AM00-0AA0 on the S7-300 side and terminates to a 25-pole D-SUB socket for the ET200M remote I/O station. The 3 m length suits cabinet-to-cabinet runs within a single panel row or a short marshalling cabinet bridge.