Important Cookie Information

This website uses absolutely necessary cookies. If you consent to the use of convenience cookies, please click “Yes, I agree.” By clicking on “Privacy Settings.” you can change this setting at any time and withdraw your given consent. Icon down see more You can find detailled information in our Privacy Policy Icon forward-right
Icon up see less

Bosch Building Technologies

    Showing results for 
    Search instead for 
    Did you mean: 

    How to Troubleshoot Output Power loss of a D192C or D192G


    The horn voltage from the D192C or D192G is draining down to 4.8 VDC after 40-50 seconds.


    If using a D192C card, make sure that the "EXT PWR IN" is jumped to alarm trigger or run separately to battery positive. Alarm trigger will provide 2.0 A of power. The D192C card will allow up to 1.8 A of power max.

    If using the D192G card, make sure that the "EXT PWR IN is jumped over to "AUX PWR" terminal on the card. The D192G card must use a constant supply of power to the "EXT PWR IN" terminal. If alarm trigger or battery positive is used, then a trouble condition will be present on the card. The D192G card can handle up to 3.0 A of power. The 7000-9000 series panel provides 1.8 A of aux power, which the panel uses 0.4 A for internal operations. This leaves 1.4 A for aux devices. In order to get the full 3.0 A of power, an external power supply must be used.

    Version history
    Revision #:
    1 of 1
    Last update:
    ‎06-07-2018 03:13 PM
    Updated by: