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AJA openGear 3G-SDI Frame Synchronizer


AJA openGear 3G-SDI Frame Synchronizer
AJA openGear 3G-SDI Frame Synchronizer
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About: AJA openGear 3G-SDI Frame Synchronizer

OG-FS-Mini is an openGear broadcast quality utility frame sync that packs the production-proven reliability of AJA’s leading FS frame sync technology into an openGear card, supporting frame synchronization of untimed 3G-SDI, HD, and SD video signals at an affordable price. 

OG-FS-Mini allows users to synchronize and convert a wide range of video formats to their house standard with a 3G-SDI input and output, HDMI output, and two 3-pin terminal block connectors for balanced analog audio outputs. The OG-FS-Mini also provides high quality up, down, cross-conversion.

OG-FS-Mini is designed for use in high-density openGear’s 2RU frames including AJA’s OG-X-FR frame. DashBoard software support on Windows®, macOS® and Linux offers remote control and monitoring of the openGear architecture and provides convenient and industry-standard configuration, monitoring and control options over a PC or local network.


  • openGear compatible card
  • Utility frame sync function times input signals to an external reference
  • Supports bi-level and tri-level references
  • High quality 10-bit video processing
  • Low latency processing, nominal video delay of 1 frame
  • Freeze (on input signal loss) to black or last good frame 
  • Synchronizes 3G, HD and SD video formats
  • Simultaneous SDI and HDMI outputs
  • 16-channel embedded SDI audio I/O
  • 8-channel HDMI output audio
  • 2x 3-pin terminal block connectors for analog audio output
  • Utility frame rate conversion, supports 3:2 pulldown
  • Up, down, cross conversion between 3G, HD and SD video formats
  • AFD input detection, down-convert control
  • Remote configuration through Ross DashBoard software
  • Rear I/O card included
  • Compatible with OG-X-FR, OG-3FR and DFR-8321 openGear frames
  • Five year warranty
    • NOTE:
      • OG-FS-Mini supports 3G-SDI Level A only. 3G-SDI Level B is not supported. 
      • OG-FS-Mini passes-through embedded audio ancillary data only.  It does not pass through other types of embedded ancillary data.

Simplified Block Diagram

OG-FS-Mini is designed to meet demands of broadcast engineering and live event production while providing incredible flexibility.  It receives an untimed signal, frame syncs it, processes it and  automatically routes it to both the SDI output for use in production and the HDMI output for monitoring.  The user selects which 2-channels of audio are routed to the balanced analog audio monitor outputs.

openGear Compatibility

The openGear standard ensures that AJA cards will be compatible with other openGear products from certified openGear partners. With a growing list of products, openGear is the future of rackframe products.

Flexible I/O

The modular rear panel allows custom I/O connections per card (included with individual cards).


The optional redundant power supply provides a secondary power source in the event of a primary power failure.

Ethernet Access

A standard Ethernet connection allows the frame to be accessed via the Dashboard application for overall frame communication. Optional per-card Ethernet access can be installed in the frame for advanced communication with compatible openGear cards.

DashBoard Software

DashBoard software offers quick and convenient configuration and control of openGear cards on macOS, Windows, and Linux.


  • Video Formats
    • (HD) 1920 1080p
    • (HD) 1920x1080PsF
    • (HD) 1920x1080i
    • (HD) 1280x720p
    • (SD) 625i
    • (SD) 525i
    • YCbCr, 4:2:2, 10-bit
  • Video Input Digital
    • 1x 3G-SDI, 1x BNC 
    • 3G/HD/SD, SMPTE-259/292/372/424
      • Single Link 3G-SDI Level A, SMPTE-425-1
    • (HD) 1920x1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60
    • (HD) 1920x1080PsF 23.98, 24, 25, 29.97, 30
    • (HD) 1920x1080i 50, 59.94, 60
    • (HD) 1280x720p 50, 59.94, 60
    • (SD) 625i 50 
    • (SD) 525i 59.94
  • Video Output Digital
    • 1x 3G-SDI outputs, 1x BNC
    • 3G/HD/SD, SMPTE-259/292/424
      • Single Link 3G-SDI Level A, SMPTE-425-1
    • (HD) 1080p 23.98 (for 23.98 video inputs)
    • (HD) 1080p 24 (for 24 video inputs)
    • (HD) 1080p 25 (for 50 video inputs)
    • (HD) 1080p 29.97 (for 59.94 video inputs)
    • (HD) 1080p 30 (for 60 video inputs)
    • (HD) 1080p 50 (for 50 video inputs)
    • (HD) 1080p 59.94 (for 23.98, 59.94 video inputs)
    • (HD) 1080p 60 (for 24, 30 or 60 video inputs)
    • (HD) 1080PsF 23.98 (for 23.98 video inputs)
    • (HD) 1080PsF 24 (for 24 video inputs)
    • (HD) 1080PsF 25 (for 50 video inputs)
    • (HD) 1080PsF 29.97 (for 59.94 video inputs)
    • (HD) 1080Psf 30 (for 30 or 60 video inputs)
    • (HD) 1080i 59.94 (for 23.98, or 59.94 video inputs)
    • (HD) 1080i 60 (for 24, 30, or 60 video inputs)
    • (HD) 1080i 50 (for 25 or 50 video inputs)
    • (HD) 720p 50 (for 50 video inputs)
    • (HD) 720p 59.94 (for 23.98, 59.94 video inputs)
    • (HD) 720p 60 (for 24, 30, or 60 video inputs)
    • (SD) 625i 50 (for 25 or 50 fps video inputs)
    • (SD) 525i 59.94 (for 23.98 or 59.94 video inputs)
  • Monitor Output Digital
    • 1x HDMI standard type A connector
      • HD/SD
      • Color space, YCbCr or RGB
      • Bit depth, 8 or 10
      • RGB Range, SMPTE or Full Range
  • Video Processing
    • Frame rate conversion/film cadence removal/insertion (3:2)
    • Freeze (on input signal loss) to black or last good frame
    • AFD input detection, down-convert control
    • Nominal video delay HD/SD, 1 frame
  • Up-Conversion
    • Hardware 10-bit
    • 4x3 Pillar: results in a 4x3 image at center screen with black sidebars
    • 14x9 Pillar: results in a 4x3 image zoomed slightly to fill a 14x9 image with black side bars
    • Full Screen: results in a 4x3 image stretched horizontally to fill in a 16x9 screen
    • Letterbox to Full: results in image zoomed to fill fullscreen
    • Wide Zoom: results in a combination of zoom and horizontal stretch to fill a 16x9 screen; this setting will introduce a small aspect ratio change
  • Down-Conversion
    • Hardware 10-bit
    • Crop: image is cropped to fit new screen size
    • Anamorphic: HD image is converted to full-screen SD with a 16x9 aspect ratio
    • 14x9: image is reduced slightly with aspect ratio preserved, black is added top and bottom, and the left and right sides are cropped
    • Auto AFD: automatically selects the best down-convert mode based on the input video's Active Format Description (AFD) code
    • Letterbox: image is reduced with black top and bottom added to image area with the aspect ratio preserved
  • Cross-Conversion
    • Hardware 10-bit
    • 1080i to 720p
    • 720p to 1080i
    • 720p to 1080PsF
  • Aspect Ratio Converstion for SD to SD
    • Letterbox: transforms SD anamorphic material to a letterboxed image
    • H Crop: produces a horizontally stretched effect on the image; transforms anamorphic SD to full frame
    • SD Pillarbox: produces an image in the center of the screen with black borders on the left and right sides and an anamorphized image in the center
    • V Crop: transforms SD letterbox material to an anamorphic image
    • 14x9: anamorphic to 14x9 conversion
  • Audio Input Digital
    • 48 kHz sample rate
    • 1x SDI embedded input
      • 16-channels, 24-bit (20-bit SD), SMPTE-272/299
  • Audio Output Digital
    • 48 kHz sample rate
    • 1x SDI embedded output
      • 16-channels, 24-bit (20-bit SD), SMPTE-272/299
  • Audio I/O
    • 16-channel embedded SDI audio input
    • 16-channel embedded SDI audio output
    • 8-channel HDMI audio output
    • Balanced analog audio outputs, 2x 3-Pin terminal block connectors
  • Ancillary Data
    • Supports pass-through of PCM embedded audio       
    • Supports pass-through of non-PCM audio when source is in time with the selected ref (SDI In or Ext Ref).  Non-PCM audio is not supported during frame sync operation.
    • All other ANC data is not passed
  • Reference Input
    • Supported reference video inputs include:
      • 1080i tri-level sync
      • 1080p tri-level sync
      • 720p tri-level sync
      • 625i Color Black
      • 525i Color Black
    • 75-ohm terminating 
  • Genlock
    • Lock to External Reference
    • Lock to SDI input
    • Free run
  • HDCP
    • The OG-FS-Mini does not encode the HDMI output with HDCP encryption. By definition, HD-SDI inputs to the OG-FS-Mini are unencrypted. The HDMI specification requires HDMI monitors to support unencrypted inputs.
  • User Interface
    • External DIP switch
    • openGear DashBoard network control software via Windows, macOS or Linux
  • Size (w x d x h)
    • openGear standard form factor, front slot and rear card. Two slots required for each card
  • Weight
    • 0.5 lb (0.3 kg)
  • Power
    • openGear frame compatible, 7.0 watts max per card
  • Environment
    • Safe Operating Temperature Range: 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)

Reviews: AJA openGear 3G-SDI Frame Synchronizer

There are currently no product reviews.

Warranty: AJA openGear 3G-SDI Frame Synchronizer Warranty:

30 Days

Manufacturer's Warranty:

All AJA Mini-Converters are covered by a 5 year warranty and AJA's advanced replacement policy. If a replacement is necessary, AJA will ship a new unit immediately without the need to send the original unit back first, ensuring you are up and running again as quickly as possible.

Manufacturer's Warranty will cover parts, labour and return shipping back to you once repaired. Shipping into the service centre is not covered