Product Description

Doug Fleenor Design 123 Isolated DMX512 Amplifier

One input, three outputs, PCB only, terminal blocks

Overview

The DMX splitter is available in three standard configurations: three, five, or eleven outputs from a single DMX input. An enhanced five output splitter with miswiring and lightning protection, and a universal power supply is also available (see the model 125EE data sheet). Units with any number of inputs and outputs may be manufactured on a custom basis. Each output is electrically isolated from the input, and from every other output, by 2500 volt optical couplers. Each output has its own line driver and associated power supply.

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. 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.

Note: -OEM’ at the end of DFD model numbers means you are only ordering the PCB (without the chassis and external connectors).

Specifications

Input circuit: EIA-485 receiver with 120 ohm termination resistor between +Data and -Data (Units with feed through connectors do not have internal termination)

Input signal: 0.2 volts minimum, 12 volts maximum

Output circuit: EIA-485 driver

Connectors: Gold plated 5 pin Neutrik D-1 Series (3 pin connectors, terminal blocks, or RJ45 optional)

Feed through: A non-isolated feed through connector is standard on the eleven output model and is optional on the one, three, and five output models.

Isolation: 2500 volt optical coupler, 1500 volt split bobbin transformer

Power input: 100 - 120 volts, 50/60 hertz, 12 watts (208 - 240 volt optional)

Color: Top, bottom and sides: Silver hammer tone Front and back: Black