DMX-D4 - Lighting Qtx - Free user manual and instructions
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| Product Type | DMX Dimmer / Switch Pack |
| Model | DMX-D4 |
| Brand | Qtx |
| Number of Channels | 4 |
| DMX Protocol | USITT DMX512 (1990) |
| Power Supply | AC 100-240V, 50/60Hz |
| Power Consumption | Approx. 20W (without load) |
| Maximum Load per Channel | 10A (resistive) |
| Total Maximum Load | 40A (resistive) |
| Dimensions (W x H x D) | 482 x 44 x 200 mm (19" rack mount, 1U) |
| Weight | 2.5 kg |
| Housing Material | Steel chassis, black finish |
| Cooling | Passive (ventilation slots) |
| Operating Temperature | 0°C to 40°C |
| Connectors | DMX In/Out: XLR-5 (female/male); Power: IEC C14; Output: 4x IEC C13 or terminal block |
| Controls | DMX address DIP switches, manual override per channel |
| Indicators | Power LED, DMX signal LED, output per channel LEDs |
| Compliance | CE, RoHS |
| Included Accessories | Power cord, user manual |
| Care and Cleaning | Wipe with dry cloth; do not use liquids or solvents |
| Safety | Use in dry location; disconnect power before servicing; do not overload |
| Spare Parts / Repairability | Contact Qtx support for replacement fuses, power supplies, or DMX boards |
Frequently Asked Questions - DMX-D4 Qtx
How do I set the DMX address on the DMX-D4?
Use the DIP switches on the rear panel. The address is set in binary: for example, switch 1 = 1, switch 2 = 2, etc. Ensure all switches are set correctly before powering on.
Can I use the DMX-D4 with LED fixtures?
Yes, but ensure the total load per channel does not exceed 10A and the fixture is compatible with standard DMX dimming (PWM). Non-dimmable LEDs may flicker.
What does the 'Manual Override' mode do?
Each channel has a manual control knob to set output level independently, bypassing DMX. Useful for testing or standalone operation.
How many DMX-D4 units can I daisy-chain?
DMX spec allows up to 32 devices per line. With proper termination, you can chain multiple units. Use DMX thru connector to next unit.
Why is the DMX signal LED not lighting up?
Check the DMX cable connection, ensure the controller is set to the correct universe, and verify the DMX address. A terminator may be needed on the last device.
What is the maximum power per channel?
Maximum load per channel is 10A resistive (2300W at 230V). For inductive loads like motors, derate to 2A.
Can I mount the DMX-D4 in a flight case?
Yes, it fits a standard 19-inch rack (1U). Ensure adequate ventilation to prevent overheating.
Does the DMX-D4 have a built-in power supply?
Yes, it includes a universal AC input (100-240V) internal power supply. No external power adapter needed.
How do I reset the DMX-D4 to factory settings?
There is no user reset. Simply set all DIP switches to OFF and then configure as needed. Disconnect power for a few seconds to clear any transient states.
What spare parts are available for the DMX-D4?
Common spare parts include fuses, DMX input/output modules, and potentiometers. Contact Qtx or an authorized distributor for replacements.
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USER MANUAL DMX-D4 Qtx
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Product information
Brand : Qtx
Model : DMX-D4
Category : Lighting