AJA FiDO-4T-MM 4-Channel 3G-SDI to Multi-Mode LC Fiber Transmitter

AJA FiDO-4T-MM 4-Channel 3G-SDI to Multi-Mode LC Fiber Transmitter

The AJA FiDO-4T-MM is a professional 4-channel 3G-SDI to multi-mode LC fiber optic transmitter designed to extend SDI video signals over long distances using multi-mode fiber. It converts four independent 3G-SDI, HD-SDI, or SD-SDI inputs to fiber outputs, supporting cable runs up to 700 meters (2,296 feet) over OM4 fiber or 300 meters (984 feet) over OM3 fiber.

Ideal for broadcast facilities, live production, video control rooms, mobile production trucks, and professional AV systems, the FiDO-4T-MM helps eliminate ground loop problems while maintaining reliable video signal transmission. Its compact Mini-Converter design fits easily behind monitors, inside equipment racks, and on camera rigs.

Key Features of the AJA FiDO-4T-MM

• 4-channel SDI-to-fiber conversion: Transmits four independent 3G-SDI, HD-SDI, or SD-SDI video signals over multi-mode fiber.
• Long-distance fiber transmission: Supports cable runs up to 700 m (2,296 ft) over OM4 fiber and 300 m (984 ft) over OM3 fiber.
• Multi-mode LC fiber connectivity: Provides four simplex or two duplex output connections using LC connectors.
• 4K and UltraHD workflows: Supports 4K/UltraHD-SDI transmission over four fiber links.
• HDR metadata pass-through: Preserves supported SDI metadata, including HDR information.
• Ground loop isolation: Fiber optic transmission helps eliminate ground loop problems between connected equipment.
• Compact, portable design: Fits into tight spaces behind monitors, in equipment racks, mobile production trucks, and on camera setups.
• Flexible power options: Accepts 5–20 VDC power and includes a universal power supply.
• Five-year warranty: Includes AJA's five-year product warranty, subject to applicable terms.

Reliable 3G-SDI to Multi-Mode Fiber Conversion

The FiDO-4T-MM provides a practical solution for extending professional SDI video signals beyond the typical reach of copper SDI cables. By converting four independent SDI inputs to multi-mode fiber, it helps production teams route video between cameras, switchers, monitors, and other equipment across a facility or production environment.

Fiber optic transmission also helps isolate connected equipment electrically, reducing ground loop issues that can affect video systems. This makes the FiDO-4T-MM useful for broadcast infrastructure, live event production, and installations where dependable signal transport is essential.

HDR Metadata Pass-Through

The AJA FiDO-4T-MM supports pass-through of SDI metadata, including HDR information. This helps preserve supported signal data as video travels through the fiber transmission path, making it suitable for professional workflows that use High Dynamic Range video.

Compact Mini-Converter Design

Designed for professional production environments, the FiDO-4T-MM features a low-profile enclosure that fits easily into space-constrained installations. Place it behind a monitor, inside a rack, in a mobile production truck, or directly on a camera rig.

The unit supports 5–20 VDC power and includes a universal power supply. An optional P-TAP power cable can also support battery-powered setups in remote production environments.

AJA Support and Warranty

AJA provides technical support to help customers with Mini-Converter installation, configuration, and operation. The FiDO-4T-MM is covered by a five-year warranty, subject to the manufacturer's applicable terms and conditions.

• Video Format: 150 Mbps - 3 Gbps, format agnostic
• Video Input Digital: 4-Channel independent 3G-SDI BNC Inputs, SMPTE-259/292/424
• Video Output Digital
  • 4-channel independent Multi-Mode LC Fiber Outputs, SMPTE-297
  • Nominal Wavelength: 850 nm
  • Optical Power: -7dBm (Min), -2dBm (Max)
  • Extinction Ratio: 7.5dB (Typ)
• Reclocking
  • 270 Mbps, 1.483 Gbps, 1.485 Gbps, 2.966 Gbps, 2.970 Gbps - Auto Select
  • All other rates are passed through and not reclocked
• Size (w x d x h): 4.6" x 4.02" x 0.85" (117.0 x 102.11 x 21.6mm)
• Weight: 0.8 lb (0.4 kg)
• Power
  • 5 watts, max
  • Uses 5-20VDC power, universal power supply included
• Safe Operating Temperature: 0 to 40 C (32 to 104 F)
• Safe Storage Temperature (Power OFF): -40 to 60 C (-40 to 140 F)
• Operating Relative Humidity: 10-90% noncondensing
• Operating Altitude: <3,000 meters (<10,000 feet)

• AJA 4-Channel 3G-SDI to Multi-Mode LC Fiber Transmitter
• Warranty: Limited 5-Year Manufacturer Warranty