Siemens S54430-C1-A1 Person Machine Interface

Siemens S54430-C1-A1 PMI-2 is a 24 V DC powered, 190 mA standby current operator interface (Person Machine Interface 2) designed for the FireFinder XLS fire alarm system. As the PMI-2 module, it provides the local human-machine interface that displays panel status and accepts user input, coordinating with the FireFinder XLS control panel to support on-site interaction with life-safety features. The PMI-2 family includes variants such as S54430-C3-A1, described as PMI-2 with a GPMI2-HW-Key; the S54430-C1-A1 model is the base PMI-2 without the hardware key. The device is intended for use within Siemens FireFinder XLS deployments and integrates with other PMI-2 peripherals and upgrade options in the FireFinder XLS ecosystem. The 24 V DC power requirement and nominal standby current of 190 mA define its compact power profile, enabling installation where space and power budgets are considerations. Typical applications include on-site operator liaison for monitoring FireFinder XLS panels in commercial buildings, campuses, and facilities relying on Siemens Fire Safety infrastructure, where quick at-a-glance status and local command input are valuable. By adopting the PMI-2 interface, facilities can maintain compatibility with standard FireFinder XLS configurations and leverage upgrade paths within Siemens’ PMI-2 family, ensuring consistent operation and replacement within existing installations.