Doug Fleenor 121D-TB - 2-Universe DMX Isolation Amplifier with 1-Input, 1-Output and Terminal Blocks

The model 121D contains the same isolation and protection circuitry used in our 121, but have multiple isolators in a single enclosure. They are ideally suited for use with control consoles which have multiple DMX outputs and the 121D has two isolators. 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.

Benefits

• Console is protected from failed dimmers, lightning damage, and any other cause of high voltage on the control cable.
• Color changers, moving lights, other dimmers are protected from each other.
• Reflections, short circuits, etc. on one output cannot affect another output.
• Easy "fool proof" installation.
• Assists in proper control wiring.
• Rugged and attractive for years of service.
• Assures reliable connections.
• Eases field service.
• Easily isolates line voltage failures. Usually withstands electrical storm damage.
• Reliable, high speed data throughput. Units can be cascaded.
• Prevents arcing across circuit board.
• Reliably drives long control cables.
• Simplifies system trouble shooting.

Features

• Input is electrically isolated from output.
• Outputs are isolated from each other.
• Outputs are separately buffered.
• No user adjustments.
• DMX pinouts are printed on the splitter.
• Powder coated 1/10" aluminum chassis.
• Gold plated Neutrik 5 pin connectors.
• All integrated circuits are socketed.
• Uses 2500 Volt optical couplers.
• Forty times faster than DMX data rate.
• "Air gap" circuit board under isolator.
• 60 mA drive current.
• Power and input signal indicators.

Specifications

• Input circuit: EIA-485 receiver with 120 ohm Termination resistor between +Data and -Data (Units with optional 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 or terminal blocks optional)
• Feed through: A non-isolated feed through connector is optional
• 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