Relays and interfacing
Apollo manufactures a comprehensive range of interfaces for intelligent systems which enable fire protection systems to be engineered simply and effectively without the need for custom-designed equipment.
Switch monitor modules: The switch monitor is designed to monitor the state of one or more single pole, volt-free contacts connected on a single pair of cables and to report the status to Apollo compatible analogue control equipment.
Zone Monitor: The zone monitor powers and controls the operation of a zone of up to 20 Apollo Series 65 or Orbis fire detectors from a Discovery or XP95 loop.
Sounder Control Unit: The sounder control unit is used to control the operation of a zone of conventional sounders and report their status to the control panel.
Input/ Output Unit: The input/output unit provides a voltage-free, double pole changeover (DPCO) relay output, a single monitored switch input and an unmonitored, non-polarised opto-coupled input.
3 Channel Input/Output Unit: The three channel input/output Unit provides three voltage-free, single pole, changeover relay outputs and three monitored switch inputs.
Output Unit: The output unit provides a voltage free single pole, changeover relay output. It is a simplified version of the input/output unit without circuitry for monitoring inputs.
Main Switching Input/Output Unit: The mains switching input/output unit provides a voltage-free, single pole change-over relay output and a monitored switch input. Capable of switching 250V AC at up to 5A.