Doehler & Haass DH21B-4 - Vehicle decoder

Doehler & Haass DH21B-4 - Vehicle decoder

 

Technical details

Vehicle decoder DH21B for SX1, SX2, DCC and MM (2nd generation)

Product features and functions
For optional operation with digital systems according to SelecTRIX 1 and 2 or according to DCC format
In digital operation, the last programmed system is used (it is not switched 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
Latest generation load control, resulting in particularly soft control behavior
Various control variants for optimal adaptation 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 dimmable
Shunting gear
Motor, light and track connections can be exchanged electronically
All function outputs are freely programmable
Temperature protection
Reset function for DCC and SX2
Update capability of the decoder
The vehicle decoder DH21B supports braking with asymmetrical digital voltage (four diodes in series and one diode anti-parallel, Lenz ABC), slow travel (with suitable brake modules) and bidirectional communication (locomotive address feedback in DCC operation, RailCom®).

The DH21B version -4 has amplified (maximum load capacity 1 A) function outputs AUX3 and AUX4. The DH21B-5 version has unamplified (logic level 5 volts) function outputs AUX3 and AUX4. The function outputs AUX5, AUX6, AUX7 and AUX8 are unamplified in both versions.

 

 

 

Characteristics:

Manufacturer:	Doehler & Haass
Item number:	DH21B-4
number of pieces:	1 piece
Product Type:	Vehicle decoder
track:	neutral
Digital decoder:	Yes
Connections::	21-pin (Märklin/TRIX mtc21)
Current (V):	30V
length:	20.7mm
Width:	15.8m
Height:	5.2mm
Operating modes:	SX1, SX2, DCC, MM, DC, AC
Connection technology:	21 MTC (Märklin)
Continuous current:	2.0A
Current motor output duration:	2.0A
Function output (total):	8 + 2 x light
Current limit. Fu-Off:	AUX1+2 300 mA (dimmable), AUX3+4 1.0 A each
LED outputs:	150 mA each (dimmable)
Servo outputs:	No
SUSI:	Yes
Dir. Energy Saving Connection:	No (possible via VS (+) and GND (-))
Speaker output:	No
Sound memory:	No
Age recommendation:	14 years and older
WEEE No.:	DE 28016265