Doehler & Haass SD21A-5 - Vehicle sound decoder (Gen3)

Doehler & Haass SD21A-5 - Vehicle sound decoder (Gen3)

 

Technical details

Vehicle sound decoder SD21A for SX1, SX2, DCC and MM (3rd generation)

Product features and functions
For optional operation with conventional DC driving device, digital systems SelecTRIX 1 and 2 or according to DCC format
The switchover between analogue and digital operation takes place automatically
In digital operation, the last programmed system is used (it is not switched over automatically!)
SelecTRIX 1 31 speed levels , 100 addresses
SelecTRIX 2 127 speed levels, 10,000 addresses, 16 additional functions
DCC Short addresses (1-127), long addresses (0001-9999), with 14, 28, 126 speed levels
Load control The latest generation, resulting in particularly soft control behavior
Various control variants for optimal adaptation to the motor
Internal 127 speed levels
Adjustable motor frequency (low frequency, 16 kHz, 32 kHz)
Block route operation with simple diodes in digital operation
Light and function outputs can be dimmed and activated analogously
Shunting gear
Motor, light and track connections can be exchanged electronically
All function outputs are freely programmable
Temperature protection
Originals Vehicle-specific steam, diesel and electric locomotive sound projects (no “standard sounds”)
Realistic steam driving noise with wheel-synchronous and overlapping exhaust beats, gear-dependent pitch and independent boiling noise
Realistic diesel-hydraulic driving noise with gear-dependent pitch, variable idle speed and independent Acceleration levels, turbocharger and dynamic brake
Realistic diesel-mechanical driving noise with multiple gears, idling, multiple driving and acceleration levels and possible switching noise
Realistic electrical driving noise with traction motor and traction motor fan as well as upgrade noises (current collector, main switch, etc.), derailleur noise and dynamic brake
Bell, horn, whistle, closing doors, etc. (depending on the sound project) can be triggered separately at any time
All sound sequences are freely configurable (“Function Mapping”) and can be triggered randomly
Speaker connection to prevent short circuits and overload protected
Low heat generation through the use of the latest technologies
Reset function for DCC and SX2
Update capability of the decoder
Loading of sound projects via SUSI interface using programmer

The vehicle sound decoder SD21A supports braking with asymmetrical digital voltage (four diodes in series and one diode anti-parallel, Lenz ABC), slow travel (with suitable braking modules) and bidirectional communication (loco address feedback in DCC operation, RailCom®).

The vehicle sound decoder SD21A does not support SX1 programming. Please set up SX1 operation using the SX2 parameter programming.

The SD21A-4 version has reinforced (maximum load capacity 1 A) function outputs AUX3, AUX4, AUX5 and AUX6. The SD21A-5 version has unamplified (logic level 3.3 volts) function outputs AUX3, AUX4, AUX5 and AUX6.


On request, we can also program a sound project for an additional charge. Please feel free to contact us without obligation: kundenservice@modelleisenbahn-shop.com


 

 

 

Characteristics:

Manufacturer:	Doehler & Haass
Item number:	SD21A-5
number of pieces:	1 piece
Product Type:	Vehicle sound decoder
track:	neutral
Digital decoder:	Yes
Connections::	For the 21-pin interface (NEM 660/RCN-121)
Current (V):	30V
length:	26.6mm
Width:	15.8m
Height:	4.0mm
Operating modes:	SX1, SX2, DCC, MM, DC, AC
Connection technology:	21MTC (NEM660)
Continuous current:	2.0A
Current motor output duration:	2.0A
Function output (total):	6 + 2 x light
Current limit. Fu-Off:	AUX1+2 300 mA (dimmable)
LED outputs:	150 mA each (dimmable)
Servo outputs:	No
SUSI:	Yes
Dir. Energy Saving Connection:	Yes
Speaker output:	Yes
Audio performance:	2.6/1.6W (4/8Ω)
Sound memory:	128 megabits (up to 760s)
Age recommendation:	14 years and older
WEEE No.:	DE 28016265