The M200 series of modules are a family of microprocessor controlled interface devices permitting the monitoring and/or control of auxiliary devices. The M210E-CZR is used to link a zone of conventional devices to an intelligent system controlled by an addressable panel. The CZR has a resistor built in, making it especially suitable for connection to a conventional zone that operates in a hazardous area requiring intrinsically safe equipment. The module must only be connected to control panels using compatible proprietary addressable communication protocols for monitoring and control. M210E-CZR conventional Zone Monitor module allows a zone of IS conventional detectors to be connected to Pertronic Analogue Addressable Panels.