Digitrax DN121PS Manual

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igitrax ommand
Run Your Trains, Not Your Track!
DN121PS
Fits Many DCC-Ready N and HO
Scale Locomotives
Features:
1 Amp (1.5 Amp Peak) Mobile DCC Decoder
New Thin Profile for easier installation
Supports Both Short (127) & Long (10,000) Address Modes
User Programmable Address, Acceleration, Deceleration, Start-voltage,
Mid-point voltage, Max Voltage and more
Constant brightness directional headlights (Does not support independent
forward & reverse light operation)
Programmable from DCC compatible equipment without opening the loco
Smooth conversion to analog operation with functions operational
Smooth locomotive speed control with user selectable 14, 28, or 128 forward
& reverse speed step capabilities
Supports Basic, Advanced & UniVersal Consisting
Compatible with DCC standards
Complies with FCC Part 15, class B RFI requirements
Parts List
1 DN121PS Decoder
Installation Information
See the Digitrax Decoder Manual for complete decoder test procedures, instal-
lation instructions, programming and technical information. Digitrax manuals
and instructions are updated periodically. Please visit www.digitrax.com for the
latest versions, technical updates and additional locomotive-specific installation
instructions.
Installation Instructions - Atlas U23B (HO Scale)
1. Carefully remove the locomotive's shell from the frame. Notice the orienta-
tion of the shell to the frame (Figure 1) so that you can reinstall the shell
correctly.
2. Remove the dummy plug from the locomotive's DCC-ready socket. (Figure
2) The jumper plug allows the loco to operate on a standard DC track or in
analog mode on a DCC track. Pin 1 is marked for proper orientation of the
decoder.
©2003 Digitrax, Inc www.digitrax.com
C C
ontrol
N Scale
Mobile Decoder
1.0 Amp/1.5 Amp Peak
2 Functions, 0.5 Amp
DCC Plug 'N Play with 1' Harness
1 Instruction sheet
1