NEW Doug Fleenor DMX Isolated Opto Splitter Amplifier 1 In, 5 Out

The NEW Doug Fleenor DMX Isolated Opto Splitter Amplifier (1 In, 5 Out) takes a single DMX512 control input and distributes it to multiple DMX512 outputs so you can build cleaner, more reliable lighting control runs. Each output is electrically isolated from the input and from every other output by 2500 volt optical couplers, helping protect your system from ground loops and faults while keeping the DMX signal stable.

Why Use a DMX Splitter (Star vs. Daisy Chain)

The DMX splitter allows connection of DMX receivers (dimmers, color changers, moving lights, etc.) in a star configuration as opposed to a daisy chain configuration. In a star configuration, each control cable is run to a central point, in this case the splitter. In a daisy chain configuration all the devices are connected on one control cable, the output of one feeding the input of the next. It is not good practice to simply split a DMX control cable using a "wye" cable as this can cause signal corruption due to reflections.

Isolation and Signal Integrity

Each output has its own line driver and associated power supply, so each branch is buffered and driven correctly for EIA-485 (DMX512) cabling. Electrical isolation is provided by a 2500 volt optical coupler and a 1500 volt split bobbin transformer, keeping outputs isolated from one another.

Typical Applications

Typical uses of the splitter include splitting the control signal between stage right and stage left dimmers, running an isolated split to a string of color changers, splitting and isolating a feed to a wall outlet for temporary or rented dimmers, isolating a stack of dimmer packs from each other, etc.

Technical Details

• Input circuit: EIA-485 receiver with 120 ohm termination resistor between +Data and -Data
• Input signal: 0.2 volts minimum, 12 volts maximum
• Output circuit: EIA-485 driver
• Connectors: Gold plated 5 pin Neutrik D-1 Series, Terminal Blocks, or RJ-45
• Power input: 100 - 120 volts, 50/60 hertz, 12 watts
• Color: Top, bottom and sides: Silver hammer tone; Front and back: Black
• Size: 125 6.5" deep, 1.7" high, 8.25" wide