Bosch Building Technologies

    cancel
    Showing results for 
    Search instead for 
    Did you mean: 

    How to Troubleshoot Keypad Loop on D4112 & D6112 Panel

    Issue

    How do I tell if my wiring is good and all the devices are connected on the D6112 keypad bus?

    Solution

    Remove the data wires from terminals 11 and 13 on the control panel. Also remove the power going to those devices. Using a multimeter set to read resistance, place one lead on a data wire and the other lead on the other data wire.

    The correct resistance reading should be 9K Ohms per device connected.

    Number of device    /   Device Resistance   /    Wire     /      Max resistance

    1                                        9 k ohms           15 k ohms          23 k ohms

    2                                      18 k ohms           15 k ohms          32 k ohms

    3                                       27 k ohms          15 k ohms          41 k ohms

    4                                       36 k ohms          15 k ohms          50 k ohms

    Version history
    Revision #:
    2 of 2
    Last update:
    ‎06-20-2018 08:32 PM
    Updated by:
     
    Labels (1)
    Contributors
    Icon--AD-black-48x48Icon--address-consumer-data-black-48x48Icon--appointment-black-48x48Icon--back-left-black-48x48Icon--calendar-black-48x48Icon--center-alignedIcon--Checkbox-checkIcon--clock-black-48x48Icon--close-black-48x48Icon--compare-black-48x48Icon--confirmation-black-48x48Icon--dealer-details-black-48x48Icon--delete-black-48x48Icon--delivery-black-48x48Icon--down-black-48x48Icon--download-black-48x48Ic-OverlayAlertIcon--externallink-black-48x48Icon-Filledforward-right_adjustedIcon--grid-view-black-48x48IC_gd_Check-Circle170821_Icons_Community170823_Bosch_Icons170823_Bosch_Icons170821_Icons_CommunityIC-logout170821_Icons_Community170825_Bosch_Icons170821_Icons_CommunityIC-shopping-cart2170821_Icons_CommunityIC-upIC_UserIcon--imageIcon--info-i-black-48x48Icon--left-alignedIcon--Less-minimize-black-48x48Icon-FilledIcon--List-Check-grennIcon--List-Check-blackIcon--List-Cross-blackIcon--list-view-mobile-black-48x48Icon--list-view-black-48x48Icon--More-Maximize-black-48x48Icon--my-product-black-48x48Icon--newsletter-black-48x48Icon--payment-black-48x48Icon--print-black-48x48Icon--promotion-black-48x48Icon--registration-black-48x48Icon--Reset-black-48x48Icon--right-alignedshare-circle1Icon--share-black-48x48Icon--shopping-bag-black-48x48Icon-shopping-cartIcon--start-play-black-48x48Icon--store-locator-black-48x48Ic-OverlayAlertIcon--summary-black-48x48tumblrIcon-FilledvineIc-OverlayAlertwhishlist