The DMX-Card is a small breakout board that allows developers to quickly add a UART-to-DMX (RS-485) circuit to their designs. It has been designed to cut down on the time spent constructing isolated DMX-512 circuits for prototype designs. The circuit is fully isolated and protected against ESD, and can be easily configured with a 3-pin XLR, 5-pin XLR, or 0.100" connector of the user's choice.
9/24/2016: Board version 1.1; see directory for changes
9/22/2016: Board version 1.0 proven
- +5V input with polarity and over-current protection
- Full power and data isolation
- Isolated DC-DC converter (1.5kVDC)
- Isolated I/O via optocoupler (2.5kVDC)
- ESD protection on all data inputs and outputs (including DMX)
- Full DMX compliance*
- ANSI E1.20-2006 RDM compliant circuit, including correct biasing resistors (562/133/562)
- 10MBd optocouplers
- User-selectable connectors:
- Output:
- Neutrik NC3FAH (3-pin XLR)
- Neutrik NC5FAH (5-pin XLR)
- 0.100" PTH connectors (headers, screw terminal blocks, etc.)
- Input:
- 0.100" PTH connectors (headers, screw terminal blocks, etc.)
- Output:
- Board Dimensions: 0.95" x 1.90" (24.13mm x 48.26mm) (Actual dimensions will vary depending on the type of output connector installed)
- Board Thickness: 1.6mm
- Input Power: +5VDC, 60mA (nominal)
- Input Connections: +5V, GND, RX, TX, RX/TX Select
- Output: Isolated RS-485/DMX-512 (GND-ISO, D-, D+)
- Mounting: 4x 0.125" holes, located at edges of board
*circuit is constructed to ANSI E1.20; RDM must be correctly implemented on controller for full compliance