Digitrax DT400 Manuals

DT400/DT400R When a 9 volt battery is inserted in a DT400 or DT400R throttle, the following two splash screens are displayed in sequence. The first splash screen displays the firmware ID and version. The second splash screen displays the battery voltage. When a DT400 or DT400R throttle is plugged into the LocoNet it displays either Ir” or Ra and the LocoNet ID of the LocoNet it is plugged into. When a DT400R throttle is then unplugged, it will only control trains on a LocoNet with that ID. A DT400 throttle has no radio capability and needs to be plugged into the LocoNet to change any setting, such as speed and direction. However, it will work as a memory throttle. You can unplug the DT400 and the train will maintain its speed and direction until the DT400 is plugged in and a setting is changed. A DT400R has a simplex (one way) radio capability. Once the LocoNet ID has been set by plugging it into the LocoNet, speed, direction and functions, e.g. headlight, can be controlled with the DT400R unplugged. The DT400R needs to be plugged into the LocoNet for all other operations, such as entering a decoder number.