Home Forums Access Control Systems Alarm shunt W/ EOL resistor in circuit

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  • #4654

    lriggs
    Member

    Just getting back into access control. Question is wiring alarm shunt from S2 access system to Radionics/Bosch controlled alarm door. The contacted door is normally closed device with an EOL resistor of 2.2K. When I wire the Access shunt output to the door contact using both normally closed in parallel configuration. What is the resistor value/ wiring configuration for the access control output?

    #26539

    DEL Installations
    Participant

    If the EOLR is out in the field and you only have a single pole access shunt, I'd add a second DPDT relay with a separate 2.2k which the protective loop is shunted to upon a RTE or REX.

    Otherwise, it's not really the best way to parallel a second resistor of any value with the 2.2K still there (ohm's law)

    Is the door loop controlled by the Radx 24 hrs?

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