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Bosch Building Technologies

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    How to Trouble-shoot D192 Alarm Output

    Issue

    There is no voltage (0VDC) across the ALRM CKT terminals.

    Solution

    2018-05-22_11h18_04.png

    Issue

    There is negative 13VDC across the ALRM CKT terminals when no wires are connected to them.

    Solution

    This is normal operation.  In normal operation, there should be negative 5VDC across the ALRM CKT terminals when there is a 560 ohm (EOL) resistor across the ALRM CKT +/- terminals. There should be negative 13VDC when the EOL resistor is not present.

    Part numbers D192, D192C, D192G

    Version history
    Revision #:
    3 of 3
    Last update:
    ‎05-23-2018 08:07 PM
    Updated by:
     
    Contributors
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