Atlas 520099 Description Range Default Value, Headlight mode, Usage on conventional DC layouts

Decoder for Atlas N Scale H15/16-44 Locomotives				9
CV	Description		Range	Default
				Value**
29	Bit 1	Headlight mode:	0,1	1
		0 = Operation with 14 or 27 speed-step
		systems. This setting must be selected when		(2)
		the locomotive decoder is used with any
		DCC system that does not support the 28
		speed-step mode. If the headlights turn on
		and off as the speed is increased, the
		command station is configured for 28 speed-
		steps, and the decoder is set for 14 speed-
		steps.
		1 = Operation with 28, 55 or 128 speed
		steps. If you use this setting, the Command
		Station must also be configured to use either
		the 28 speed-step mode or the 128 speed-
		step mode; otherwise, the headlights cannot
		be controlled.
	Bit 2	Usage on conventional DC layouts:	0,1	1
		0 = locomotive operates only in digital (DCC)
		mode		(4)
		1 = locomotive can operate in either analog
		(conventional DC) or digital (DCC) mode
	Bit 3	Always 0	0	0
	Bit 4	Speed curve:	0,1	0
		0 = Factory-default speed curve is used		(16)
		1 = User-defined speed curve is used.
		Please enter the appropriate values into CVs
		67 to 94 before setting this bit.
	Bit 5	2-digit or 4-digit Addressing:	0,1	0
		0= Short (2-digit) address used		(32)
		1= Long (4-digit) address used
	Bit 6	Not used		0
	Bit 7	Both bits always 0
50	Decoder Configuration, Byte 2:		0 - 12	1
	CV50 is similar to CV29, but CV50 is used to set
	other properties. The definitions for the individual bits
	of CV50 are given below.
	Bit 0	Not used		1
	Bit 1	Not used.		0

Atlas Model Railroad Co., Inc.