The Zeta addressable input unit (ZIU) is used to interface external equipment which has a volt free normally open relay output to any Zeta addressable fire alarm system. The input is monitored with a 47K end of line resistor.
Stratos-Micra 25 is intended to provide LOCALISED incipient fire detection only. This means that it is suitable for the substantial range of applications typified by; small non-compartmentalised rooms, warehouse racking, or pieces of electronic or electromechanical equipment where it is desirable to achieve individual incipient fire reporting. In compartmentalised rooms, each compartment would normally use individual Stratos-Micra 25 detectors