The DMX250 is a transceiver designed for DMX/RDM network communication over the Power line. The device operates at a speed of 250Kbit/s. It eliminates complex cabling and RS485 transceivers and simplifies installation.
The DMX512 messages over the power line are error protected and modulated using narrowband frequency. Up to eight independent DMX/RDM networks (universes) can operate in parallel on the same power line using different frequencies.
A single capacitor couples the device to the DC power line. A simple high voltage interface (external) allows operation over AC power lines.
The DMX250 building blocks are divided to the following blocks:
Protocol handling - Interprets the DMX512 & RDM protocols.
CODEC block - encodes/decodes the DMX/RDM data.
Modem - phase modulates and demodulates the data to and from the DC-BUS powerline. including unique powerline Arbitration capabilities during RDM discovery process.
Sleep Control- ensures low power operation during sleep mode. The device sense the bus for short period to detect possible wake-up messages from other devices connected to the power line.
Eliminating the DMX cables is simple!
The DMX250 device act as a transparent DMX512/RDM powerline transceiver.
Remove the DMX cables and the RS485 transceivers, connect the DMX250 HDI and HDO pins with your ECU and you are ready to go.
If no direct access to your ECU is possible, a back-to-back RS485 transceiver connection with the DMX250 device is applicable.
A fabless semiconductor company since 1994. We develop and sell our unique devices for DC power line communication targeting wire saving. Customers in more than 51 countries use the devices in a wide range of applications; Automotive, Aerospace, Lighting, Battery monitoring (BMS) and more. The devices meet existing protocols such as UART, LIN, CAN, SPI, DMX512, and I2C keeping it simple to operate. Yamar engineers lead the LIN over DC powerline (DC-LIN) ISO 17987-8 standardization workgroup.
The innovation team continues to develop new technologies and products.