Doug Fleenor Design DMX24ANL User Manual

DMX512 TO 0-10 VOLT ANALOG CONVERTER

OWNERS MANUAL

Doug Fleenor Design
396 Corbett Canyon Road
Arroyo Grande, CA 93420

[phone]

revision 2.1
November, 1998

PRODUCT DESCRIPTION

The DMX512 to Analog Converter is an interface device which allows a DMX512 control
console to control 0 - 10 volt analog dimmers or other 0 - 10 volt devices.

The input to the converter is electrically isolated from the outputs. This prevents ground
loops in the dimming control system as well as protecting the console from damage in
the event of dimmer failure. In addition the input is protected against mis-wiring and will
accept up to 120 volts on its DMX512 input without damage to the converter. The
outputs are protected against positive voltages coming up the control cable. Damage to
the converter may occur if high negative voltages are placed on its outputs.

The input accepts DMX512 as specified by the Untied States Institute of Theater
Technology (USITT). The outputs meet the proposed ADC-10 specification.

SPECIFICATIONS

Input data rate: 250 Kilobaud

Input circuit: EIA-485 receiver with series 100 ohm self resetting "fuses"

clamped to +/- 7 volts by Transorb diodes

Input signal: 0.5 volts minimum, 120 volts maximum

Output circuit: LM324 op-amp with 1N4004 series diode

Output signal: 0 to 10.1 volts into 2000 ohm load

Output linearity: 5% input to output, 1/2% between outputs

Maximum output current: 24 output: 15 mA per channel, 120 mA total all channels

96 output: 15 mA per channel, 360 mA total all channels

Input/output isolation: greater than 500 volts

Throughput delay: less than 0.004 seconds (DMX input change to analog
output)

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

Dimensions & weight: 24 output: 9.0" deep, 1.6" high, 5.6" wide, 2.5 pounds

96 output: 8.0" deep, 1.7" high, 16.7" wide, 4.5 pounds
(19" rack adapters are available)

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