Simplex 4100-7158 Master Controller CPU card with Ethernet Connection Upgrade Kit

The Simplex 4100-7158 Master Controller CPU Card with Ethernet Connection Upgrade Kit is designed to upgrade compatible Simplex 4100-series fire alarm control panels to newer 4100ES master controller electronics. The kit includes a master controller CPU card, an Ethernet connection assembly, an Ethernet cable, and related components for system integration. Ethernet connectivity provides a network-based interface for configuration and service operations, while onboard CompactFlash memory supports storage of system job configuration files. The kit is intended for compatible 4100U panels, 4100+ panels with the required existing controller configuration, and certain 4100-series panels previously upgraded to a 4100U master controller. The existing door assembly and operator interface are not included, so compatibility should be confirmed before ordering. Designed for professional fire alarm system maintenance and modernization, the 4100-7158 helps extend the capabilities of supported legacy installations while retaining the existing cabinet and appropriate interface components.