Locomotive & car lights

Rule 17 refers to how a locomotive engineer operates the locomotive's headlights while running the train. Rule 17 is part of a railroad's standardized rulebook.  Rule 17 varies from railroad to railroad. Typically, it requires dimming the headlight when the locomotive is standing in a siding waiting to meet another train, passing through passenger stations or moving within yard limits.  Program CV49 to 104 to set Function 0 to implement Rule 17 dimming.      

I have this N-scale Proto A/B unit. I went to install the decoder in the A unit to the headlight, its an LED. My question is that once it was wired up and place on the track, I hit my headlight function and the light lit up then burnt out. This is my first wired decoder I ever installed with a head light. Can you tell me how to properly wire the led headlight to the DZ123 decoder so the light doesn't burn out? In looking at the DZ123 Decoder sheet, it suggests that I check the Decoder Manual for ...

UT4 Function Control Keys and How they WorkThere are 8 physical keys used to control functions F0-F12 on the UT4 throttle. F1 through F6 and F7-F12 share the same keys.  You will see F1-F6 in black print and F7-F12 in blue print to remind you that you will need to use the SHIFT key to access F7-F12. To use functions F7-F12 you must press and hold down the SHIFT key on the lower left row of the throttle as you press the F7 through F12 keys to activate any functions available on those functions. All the UT4 functions work like other Digitrax throttles. ...

There is a numeric keypad on the DT402/DT400 throttle.  The numeric keys on the keypad are primarily related to the throttle mode shown in the LCD’s mode indicator area, but can be used for numeric entry and function control in other modes. For example, when the command station is in the Function Mode Fn, the numeric keys are used for function control. When the command station is in the Locomotive Mode,Lo, the numeric keys are used to enter loco addresses. When the command station is in the Switch Mode is Sw, the numeric keys are used to enter switch addresses.In ...