Doug Fleenor Designs 121-FLEENOR
DMX Isolation Amp 1x1

OUR PART #  121-FLEENOR

Log In for price!

Don't have an account? Apply today!
Select model: (shipping times are approximate)

For the receiving end of long control runs Doug Fleenor Design recommend the DMX512 Isolation Amplifier, 121. It contains separate input and output power supplies. This allows the input circuitry to receive signals as low as 0.2 volts. These are optionally available in any number of configurations for systems with more than one DMX512 universe. Input and output circuitry and specifications are identical to that of our standard splitters.

Doug Fleenor Designs 121-FLEENOR Features:

  • Input is electrically isolated from output. Consoleis protected from failed dimmers, lightning damage, and any other cause ofhigh voltage on the control cable.
  • Outputs are isolated from each other. Colorchangers, moving lights, other dimmers are protected from each other.
  • Outputs are separately buffered. Reflections,short circuits, etc. on one output cannot affect another output.
  • No user adjustments. Easy "fool proof"installation.
  • DMX pinouts are printed on the splitter Assistsin proper control wiring.
  • Powder coated 1/10" aluminum chassis. Ruggedand attractive for years of service.
  • Gold plated Neutrik 5 pin connectors. Assuresreliable connections.
  • All integrated circuits are socketed. Easesfield service.
  • Uses 2500 Volt optical couplers.  
  • Easily isolates line voltage failures. Usuallywithstands electrical storm damage.
  • Forty times faster than DMX data rate.Reliable, high speed data throughput. Units can be cascaded.
  • "Air gap" circuit board under isolator.Prevents arcing across circuit board.
  • 60 mA drive current. Reliably drives longcontrol cables.
  • Power and input signal indicators. Simplifiessystem trouble shooting.
  • Mr. Fleenor is active in ESTA, PLASA, and USITT.Products are designed to latest specifications.
  • In the lighting industry since 1979. We'll behere if you need us.
  • 5 year warranty. Peace of mind.

Doug Fleenor Designs 121-FLEENOR Specifications:

  • Input circuit:  EIA-485 receiver with 120 ohmtermination resistor between +Data and -Data (Units with feed throughconnectors do not have internal termination)
  • Input signal:  0.2 volts minimum, 12 voltsmaximum
  • Output circuit:  EIA-485 driver
  • Connectors:  Gold plated 5 pin Neutrik D-1Series (3 pin connectors, terminal blocks, or RJ45 connectors optional)
  • Feed through:  A non-isolated feed throughconnector is standard on the eleven output model and is optional on the one,three, and five output models.
  • Isolation: 2500 volt optical coupler, 1500volt split bobbin transformer
  • Power input: 100 - 120 volts, 50/60 hertz, 12watts (208 - 240 volt optional)
  • Color: Top, bottom and sides: Silver hammer tone Front and back :Black
1RU Rack Kit for 6.5" Stepladder Series Chassis in Gray
Doug Fleenor Designs RK6-1 1RU Rack Kit for 6.5" Stepladder Series Chassis in Gray
Doug Fleenor Design's RK6-1 rack mount kit adapts products that use the 6.5" Stepladder Series Chassis to a standard 19" rack.  These products include the model 121,123, DMX1REL20A, DMX2REL5A, DMX2MPX, etc.Parts (shown above in red - ...

Doug Fleenor Designs 121-FLEENOR
DMX Isolation Amp 1x1

OUR PART #  121-FLEENOR

Product Information:

For the receiving end of long control runs Doug Fleenor Design recommend the DMX512 Isolation Amplifier, 121. It contains separate input and output power supplies. This allows the input circuitry to receive signals as low as 0.2 volts. These are optionally available in any number of configurations for systems with more than one DMX512 universe. Input and output circuitry and specifications are identical to that of our standard splitters.

Doug Fleenor Designs 121-FLEENOR Features:

  • Input is electrically isolated from output. Consoleis protected from failed dimmers, lightning damage, and any other cause ofhigh voltage on the control cable.
  • Outputs are isolated from each other. Colorchangers, moving lights, other dimmers are protected from each other.
  • Outputs are separately buffered. Reflections,short circuits, etc. on one output cannot affect another output.
  • No user adjustments. Easy "fool proof"installation.
  • DMX pinouts are printed on the splitter Assistsin proper control wiring.
  • Powder coated 1/10" aluminum chassis. Ruggedand attractive for years of service.
  • Gold plated Neutrik 5 pin connectors. Assuresreliable connections.
  • All integrated circuits are socketed. Easesfield service.
  • Uses 2500 Volt optical couplers.  
  • Easily isolates line voltage failures. Usuallywithstands electrical storm damage.
  • Forty times faster than DMX data rate.Reliable, high speed data throughput. Units can be cascaded.
  • "Air gap" circuit board under isolator.Prevents arcing across circuit board.
  • 60 mA drive current. Reliably drives longcontrol cables.
  • Power and input signal indicators. Simplifiessystem trouble shooting.
  • Mr. Fleenor is active in ESTA, PLASA, and USITT.Products are designed to latest specifications.
  • In the lighting industry since 1979. We'll behere if you need us.
  • 5 year warranty. Peace of mind.

Doug Fleenor Designs 121-FLEENOR Specifications:

  • Input circuit:  EIA-485 receiver with 120 ohmtermination resistor between +Data and -Data (Units with feed throughconnectors do not have internal termination)
  • Input signal:  0.2 volts minimum, 12 voltsmaximum
  • Output circuit:  EIA-485 driver
  • Connectors:  Gold plated 5 pin Neutrik D-1Series (3 pin connectors, terminal blocks, or RJ45 connectors optional)
  • Feed through:  A non-isolated feed throughconnector is standard on the eleven output model and is optional on the one,three, and five output models.
  • Isolation: 2500 volt optical coupler, 1500volt split bobbin transformer
  • Power input: 100 - 120 volts, 50/60 hertz, 12watts (208 - 240 volt optional)
  • Color: Top, bottom and sides: Silver hammer tone Front and back :Black
1RU Rack Kit for 6.5" Stepladder Series Chassis in Gray
Doug Fleenor Designs RK6-1 1RU Rack Kit for 6.5" Stepladder Series Chassis in Gray
Doug Fleenor Design's RK6-1 rack mount kit adapts products that use the 6.5" Stepladder Series Chassis to a standard 19" rack.  These products include the model 121,123, DMX1REL20A, DMX2REL5A, DMX2MPX, etc.Parts (shown above in red - ...
Add to Cart

We're sorry, only of this item available



Call a Sales Pro at for more information

HACKER SAFE certified sites prevent over 99.9% of hacker crime.