The Doug Fleenor Enhanced Isolated Splitter is a rental-grade DMX512 splitter designed for reliable distribution of control signals in harsh or electrically noisy environments. All outputs are optically isolated from the input and from each other, and every output has its own power supply and line driver to maintain signal integrity across multiple runs.

Key Features

• Full optical isolation, 2500 volt couplers and a 5000 volt split bobbin transformer to prevent ground loops and interference.
• Robust transient protection, with four input transient absorbers, two per output, plus a protector on the power line to reduce damage from electrical storms.
• Miswire and over-voltage protection, using self-resetting fuses on the DMX512 input and on each output; inputs can withstand up to 120 volts without damage.
• Slew-rate limited outputs for controlled signal edges and stable EIA-485 signaling across connected devices.
• Wide baud rate support, 0 to 250 kilobaud to cover common DMX and timecode applications.

Specifications

• Input circuit: EIA-485 receiver, two self-resetting fuses, 120 ohm terminator protected by fuse, four transorb diodes (two on +Data, two on -Data).
• Input signal range: 0.5 V minimum to 12 V maximum; withstands up to 120 V and transients up to 5 kV.
• Output circuit: Slew-rate limited EIA-485 driver, protected by Polyswitch fuses; one transorb on +Data and one on -Data.
• Output signal: Approximately 3 V into 120 ohms; outputs can withstand up to 12 V and transients up to 5 kV.
• Power input: 90–240 V, 50/60 Hz, 0.1 A (24 W) via IEC-320 connector.

Included with your rental

• The Enhanced Isolated Splitter unit.
• IEC-320 power connection; rentals typically include the IEC power cable. Please confirm required cables or breakout leads when booking.

Use Cases

• Multi-universe DMX distribution where ground isolation and transient protection are required.
• Outdoor festivals, touring rigs, and installations that face electrical noise or potential miswiring.
• Situations requiring independent, isolated outputs to protect sensitive lighting or effects gear.

If you need specific cable types, termination options, or rack mounting for your rental, please request them at booking to ensure compatibility with your system.

We strive to provide impeccably maintained rental equipment for the entertainment industry that is prepped and ready for your event. Our experienced staff stands ready to help you with your lighting, video, rigging & production needs. Rental inventory availability may vary based on date and 4Wall location. In cases where your preferred item is unavailable, we'll do our best to suggest a suitable replacement.