Bosch Building Technologies

    How to Wire the DS7420I on DS7400 or DS7400X

    Issue

    Will the DS7420i work on the older DS7400 panels?

    Solution

    The telephone wiring connections between the DS7400 or DS7400X and DS7420i are different than the DS7400Xi. When using the DS7420i with the DS7400 or DS7400X, wire terminals 21 through 24 as follows:

     

    DS7420i, DS7400 or DS7400X

     

    Terminal 21 to Terminal 14 Control Panel Line Ring

    Terminal 22 to Terminal 13 Control Panel House Ring

    Terminal 23 to Terminal 16 Control Panel House Tip

    Terminal 24 to Terminal 15 Control Panel Line Tip

     All other wiring connections shown in the DS7420i Installation Instructions are correct for all panels.

    Part numbers DS7400, DS7400X, DS7420i

    Version history
    Revision #:
    1 of 1
    Last update:
    ‎05-30-2018 05:38 PM
    Updated by:
     
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