What happens if a dSM is defective? digitalSTROM Support September 26, 2018 07:05 Updated Follow Devices without digitalSTROM functions are not impaired in their function. digitalSTROM devices can still be switched via their local push-buttons (e.g. a floor lamp with cord dimmer). The dSM must always be replaced in this situation. Related articles Does a digitalSTROM meter (dSM) have to be reconfigured after an exchange? What is the difference between a dSM11 and a dSM12? Problems after a dSM firmware update (dSM LED is magenta) How do I find the dSS? Can other deviced be linked to the dS-485 bus?