Doehler & Haass PD21A-4 - Vehicle decoder

Doehler & Haass PD21A-4 - Vehicle decoder

 

Technical details

Vehicle decoder PD21A for DCC

Product features and functions
For optional operation with conventional DC driving device or according to DCC format
Switching between analog and digital operation is automatic
DCC short addresses (1-127), long addresses (0001-9999), with 14, 28, 126 speed levels
Latest generation load control, resulting in particularly smooth control behavior
Various control variants for optimal adaptation to the motor
Internal 127 speed levels
Adjustable motor frequency (16 kHz, 32 kHz)
Block section operation with simple diodes in digital operation
Light and function outputs can be dimmed and activated analog
Shunting gear
Motor, light and track connections can be exchanged electronically
All function outputs free programmable
Temperature protection
Reset function for DCC
Decoder can be updated
The PD21A vehicle decoder is a new, particularly inexpensive vehicle decoder for pure DCC operation (and DC analog). There are only a few minor limitations compared to the DH decoder series:
No support for the SX1, SX2 and MM operating modes
No SUSI interface and no unamplified function outputs
No low-frequency motor control (16 kHz or 32 kHz can be selected, however)
No extended function assignments (i.e. no conditions, no initial mapping, etc.)
No automatic coupling sequence (timers for switching off AUX1 and AUX2 are available, however)

 

 

 

Characteristics:

Manufacturer:	Doehler & Haass
Item number:	PD21A-4
number of pieces:	1 piece
Product Type:	Vehicle decoder
track:	neutral
Digital decoder:	Yes
Connections::	21MTC (NEM660 or Märklin/Trix)
Current (V):	30V
length:	21.2mm
Width:	15.5mm
Height:	2.9mm
Operating modes:	DCC, DC
Connection technology:	21MTC (NEM660)
Continuous current:	1.0A
Current motor output duration:	1.0A
Function output (total):	2 + 2 x light
Current limit. Fu-Off:	300 mA (dimmable)
LED outputs:	150 mA each (dimmable)
Servo outputs:	No
SUSI:	No
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