Pre-assembled shielded I/O cable for S7-300/1500
The Siemens 6ES7923-0BD00-0DB0 is a pre-assembled shielded round cable purpose-built for SIMATIC S7-300 and S7-1500 systems. It connects a 16-pole front connector module to a 16-pole connection module, carrying both digital and analog I/O signals across a 3 m length. The braided shield and PVC sheath (7 mm outer diameter) keep noise out of the signal path in electrically noisy cabinet environments.
Rated at 24 V with a maximum of 60 V — this cable is designed for the 24 VDC I/O bus typical of S7-300/1500 modules, not for higher-voltage field wiring. The 16 conductors at 0.14 mm² each handle signal-level currents; do not use for power distribution. The 3 m length is fixed — no field cutting or re-termination of the IDC connectors. The 8-channel count matches the typical 8-channel digital/analog input or output module, with two conductors per channel (one signal, one common) plus shield drain.
Deployment context
This cable sits between the front connector on the S7-300/1500 module and a remote connection module — useful when the I/O module is inside a control cabinet but the field wiring termination needs to be at a separate marshalling panel or junction box. The IDC connectors on both ends mean the cable is factory-terminated; no field crimping or screw termination required. Operating temperature range is 0 to 60 °C, storage -30 to +70 °C.