Interface Module for Protectowire Types PHSC/PLR with LCD display and navigation buttons. The PIM-530 is a detection control module that acts as an interface between a fire alarm control panel detection circuit or addressable node and Protectowire PHSC or PLR Linear Heat Detectors. The PIM-530 module can supervise up to 6,500 feet (2000m) in a Class A or Class B configuration. It is available with an intrinsic safety barrier for hazardous applications.