Nominal Input Voltage
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12 or 24 VDC (Full range: 9–30 VDC)
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Operating Current
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20 mA @ 12 V, 0% duty cycle
30 mA with pushbutton pressed
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Max. Output Power*
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100 W @ 12 V: 8 A @ 50 °C ambient
100 W @ 24 V: 4 A @ 50 °C ambient
Derate to 0 A @ 70 °C ambient
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On-board Fuse
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10 A automotive mini fuse (red)
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Torque Specs
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Recommended for 6-position screw connector: 6 in.-lb. (0.678 N-m)
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External Pushbutton Excitation
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Open Circuit Voltage: 8 VDC Typical (P.B. open)
Short Circuit Current: 4 mA Typical (P.B. closed)
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Protocols
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DMX512-A, Modbus ASCII, Optomux
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Serial Communication Link
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1 RS-485 (shielded twisted-pair, 2 pair: one pair for data, one for common) port with duplicate terminal positions for easy daisy chaining
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Max. Turnaround Delay
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12 microseconds (Modbus and Optomux only)
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Max. Dimmers on Link
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124 Opto 22 Network LED Dimmers
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Max. Distance
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1000 feet (304.8 m.) at 115,200; 500 feet (152.4 m.) at 250,000
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Selectable Data Rates (Baud)
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DMX: 250,000
Modbus: 9600; 19,200; 115,200; 230,400
Optomux: 9600; 19,200; 115,200; 230,400
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Address Range
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DMX: 1–512
Modbus: 1–127**
Optomux: 1–255**
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Termination and Biasing***
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Set DIP switch (inside case) if Dimmer is at the physical end of the link. Biasing must be supplied by master for the RS-485 link.
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LEDs
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TX/RX: Green = TX; Red = RX
PWM: Intensifies as LEDs are ramped up; fully lit at duty cycle of 100%
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PWM Frequency
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244 Hz
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PWM Period
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4.2 milliseconds
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PWM Resolution
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Brightness commands are 8-bit logarithmic curve; duty cycle commands are
15-bit resolution
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Max. Number of Ramp Steps
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256 using logarithmic brightness curve; 32,768 if writing linear duty cycle
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Ramp Time Parameter
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(Optomux and Modbus protocols only) User selectable with range from 0–255
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Operating Temperature
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-20 to +70 °C
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Storage Temperature
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-20 to +85 °C
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Humidity
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0–95% humidity, non-condensing
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Agency Approvals
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CE, RoHS, UKCA
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Warranty
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30 months
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*For rated power, mount to a flat, thermally conductive surface (steel, aluminum).
**Do not use address 0; it is the broadcast address.
***Both ends of the physical link must be terminated. Master must supply bias.
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