D21

Next18

Abstract: The homebrew D21 decoder is a double sided mobile decoder with Next18 (NEM 662) connector.

PCB revision 0

supports common features
Railcom
- DYN (Custom): Motor Current, CPU load, Context Switches, Brown out counter
double sided
Dimension: 15×9.5 mm
7-20V track voltage
heartbeat LED
adjustable max motor current (default 300mA)
adjustable max AUX current (default 500mA)
over temp protection
Function output: LF/LR (dimmable, 1.4kHz) open drain
Function output: AUX1/AUX2 (dimmable, 1.4kHz) open drain
Function output: AUX3/AUX4 logic level (3.3V) or ZBCLK/ZBDAT (3.3V)
Function output: AUX5/AUX6 logic level (3.3V)
optional external buffer capacitor (max. 1500uF)
SUSI3 (3.3V logic level)
<10mA idle power consumption4