| Decoder for Atlas N Scale |
| 12 |
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| CV | Description |
| Range | Default | ||
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| Value** | |
| 57 | Bit 3 | Not used |
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| 0 |
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| Bit 4 | 0 = No effect |
| 0,1 | 0 |
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| 1 = Rear headlight functions as Gyro light |
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| (16) |
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| Bit 5 | 0 = No effect |
| 0,1 | 0 |
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| 1 = Rear headlight functions as Mars light |
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| (32) |
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| Bit 6 | 0 = No effect |
| 0,1 | 0 |
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| 1 = Rear headlight functions as single pulse |
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| (64) |
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| Strobe light |
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| Bit 7 | 0 = No effect |
| 0,1 | 0 |
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| 1 = Rear headlight functions as double pulse |
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| (128) |
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| Strobe light |
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| Notes for CV57: |
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| Bits 4 to 7 of CV57 are effective if and only if CV51.0=1. |
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| Dimming is inactive if any of bits 4 to 7 are set to “1.” |
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| If more than one of Bits 4 to 7 of CV57 is set to “1,” only the highest | |||||
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| numbered of these bits is effective. |
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| 58 | Dimming for Output B (rear headlight) |
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| The value in CV58 is used to dim the rear headlight. |
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| Using the value “0” for this CV results in a completely |
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| dark rear headlight, when it is dimmed. |
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| Using the value “255” keeps the rear headlight at its |
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| maximum possible brightness, even when dimmed. |
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| 67 | Speed Step Values for Customized Speed Curve |
| Factory | |||
| to | These CVs are used to specify the speed step |
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| Default | ||
| 94 | values for a customized speed curve. The factory- |
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| Speed | ||
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| default values for these CVs are specified in Table 2 |
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| Step | ||
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| in the section Creating a Customized Speed Curve. |
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| Values | ||
| 128 | Decoder Software Version – read only |
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| 1 |
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*The notation CVx.y = z means that bit y of CVx has the value ”z”. For example, CV29.2 = 0 means that bit 2 of CV29 has the value ”0.”
**In the Default Value field, the numbers shown in parenthesis () are the decimal values that must be written into a CV for the specified bit of that CV to have the binary value “1”.
Atlas Model Railroad Co., Inc.
