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Rail-Split RDM User Guide
Operating Modes
The product can operate in two modes. In its default mode, the product is a fully-featured RDM
Splitter. In the second mode, it acts as a DMX Fixer.
Splitter Mode
In splitter mode, all six outputs operate as bi-directional RDM ports and all DMX data received
is passed onto the outputs. The indicators have the following meaning:
Top (Data):
OFF = no data received
Green = DMX and RDM received
Yellow = DMX only received
Bottom (Power):
Green = Power
Red = Data error or collisions detected
Fixer Mode
Fixer mode is intended to solve product compatibility problems. Unfortunately, there are numerous
products on the market which will not accept the wide range of legal DMX timings and data.
Fixer mode attempts to clean-out any unusual or non-standard timing and data before sending
to the output. This includes stripping out all non-zero start codes (including RDM), forcing a
512-channel footprint and calming any timing jitter. Indicators have the following meaning:
Top (Data):
As above
Bottom (Power):
Green = Power
Red = I am fixing something
Detailed Fix Specification
Accepts and corrects break in range 56 µs – 1000 µs and outputs 250 µs
Accepts and corrects MaB in range 5 µs – 1000 µs and outputs 30 µs
Accepts and corrects MaB in range 0 µs – 1000 µs and outputs 30 µs
Accepts channel count 1 – 512 and outputs 512
Accepts refresh period from 23 ms – 1000 ms and outputs 30ms
Filters out multiple consecutive breaks
Re-times bytes of 1 stop bit to 2 stop bits
Filters out all non-zero start code packets
Re-times digital signal
