Decoder for Atlas N Scale H15/16-44 Locomotives | 3 |
Lighting Options for the H15/16-44 Decoder
The H15/16-44 decoder has four function outputs: A, B, C, and D. Decoder outputs A and B are designed to control the white LEDs used for the front and rear headlights, respectively, in these locomotives. The front and rear headlights can be configured by Bit 0 in CV51 to be either directional or independently controlled. It is also possible to dim, using a DCC function, either directional headlights or independently controlled headlights.
If the headlights are configured for independent control, the front headlight may be configured with the appropriate bits in CV51 to operate as a Gyro light, a Mars light, a single pulse Strobe light, or a dual pulse Strobe light. Similarly, when the headlights are configured for independent control, the rear headlight may be configured with the appropriate bits in CV57 to operate as a Gyro light, a Mars light, a single pulse Strobe light, or a dual pulse Strobe light.
Decoder outputs C and D are designed to control the bi-color LEDs used for the front and rear marker lights in these locomotives. Decoder outputs C and D are auto-reversing so that the bi-color LEDs show green in the direction that the locomotive is traveling and red in the opposite direction. The only control over these marker lights is on or off. By default, function F2 is used to turn these lights on or off. If desired, this default setting can be changed simply by modifying CV54; by writing the proper value into CV54, the marker lights can be switched on or off by any function F1 through F8. If you are using a DCC system where function F2 is momentary (e.g., Digitrax), it is recommended that you remap F2 to another function with on/off control.
If you are using an NCE Power Pro DCC system, you will need to change the values of two parameters in your command station to get proper operation of the H15/16-44 directional marker lights. The Number of Temp Packets must be changed from 5 to 8, and the Function Repeat Rate must be changed from 0 to 250. Refer to the NCE System Reference Manual for instructions on how to change the values of these parameters.
The H15/16-44 decoder comes with two white LED headlights and two bicolor marker light LEDs already installed. The light outputs of this decoder are designed only to drive these four LEDs. The Atlas warranty is void if any of these LEDs are removed from the H15/16-44 circuit board.
Atlas Model Railroad Co., Inc.
