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Atlas #544099 and #447399 DCC Decoders
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Atlas Model Railroad Co., Inc.
The Atlas #544099 and #447399 DCC Decoders are factory-installed in
Atlas N scale DCC-equipped SD-24 and SD-26 locomotives. The
#544099 decoder is used in locomotives with high hoods; while the
#447399 decoder is used in locomotives with low hoods.
The principle features of these decoders are:
∗ Extended (4-digit) addressing
∗ Advanced consist control (lashing up locomotives that have
different DCC addresses)
∗ Will operate on conventional DC layouts; this feature may be
disabled by setting a CV.
∗ Supports the forms of DCC programming described in
NMRA RP-9.2.3.
∗ Both short form instructions and long form instructions
supported in Operations Mode programming (programming
on the mainline)
∗ Settable for operation with 14/27 speed-steps, 28/55 speed-
steps, or 128 speed-steps with direct drive
∗ Directional headlights
Atlas Low Profile #544099
and #447299 DCC Decoders
for N Scale Locomotives
Item Nos. 544099 and
447399
Revised 03/08/2005
Atlas #544099 and #447399 DCC decoders are in conformance with