FS4 is a 4-Channel 2K/HD/SD or 1-Channel 4K/UltraHD frame synchronizer and up, down, cross-converter. AJA’s flagship frame synchronizer and converter offers incredible versatility and connectivity in a sleek 1RU frame for all your 4K/UltraHD and 2K/HD/SD conversion needs, with a wealth of digital and optional 12G-SDI Fiber LC and 12G-SDI BNC SFP connectivity. Offering a wide range of connection options for both video and audio, FS4 can do the work of four separate devices in 2K/HD/SD or combine all processors and channels together for maximum flexibility for 4K/UltraHD productivity.
Single or Four Channel Modes in a 1RU frame
FS4 offers two modes for comprehensive conversion and signal processing.
Single channel mode provides a full suite of 4K/UltraHD processing and up, down, cross-conversion to and from 2K, HD or SD.
Four channel mode offers 4x 2K/ HD/SD channels of simultaneous conversion and processing, all within an elegant 1RU chassis for multi-channel high density delivery.
Bulletproof reliability. Incredible conversion power.
FS4 is your real world answer for conversions of to and from multiple resolutions, built to AJA’s high quality and reliability standards.
4K/UltraHD delivery, processing and synchronization is fast becoming the next standard, and FS4 gets you there with a wealth of digital video connectivity including Quad 1.5G, Dual 3G, Quad 3G over 3G-SDI and 12G/6G over optional 12G-SDI BNC and 12G-SDI LC Fiber SFP modules.
In single channel mode, FS4 will upscale your HD or SD materials to 4K/UltraHD and back, with a huge array of audio channels over Fiber, 3G-SDI, AES, and MADI for an incredible 272 x 208 matrix of audio possibilities.
Welcome to Four Channel Mode.
In four channel mode, FS4 provides incredibly powerful multi-channel conversion with up to four channels of simultaneous processing for 2K/HD and SD signals. New thinking requires a new layout, and FS4’s front panel has been redesigned to simplify and speed your access to the product’s wealth of features.
The panel has also been designed to provide straightforward operation in single channel or four channel mode. In four channel mode, all four VIDx buttons under Channel Select are lit up. In single channel mode, only VID1 is lit and VID2-4 are off.
Multi-channel density in a 1RU chassis - space, energy and power preserved.
New thinking requires a new layout and FS4’s front panel has been redesigned to simplify and speed your access to the product’s wealth of features. The panel has also been designed to provide straightforward operation in single channel or four channel mode. In four channel mode, all four VIDx buttons under Channel Select are lit up. In single channel mode, only VID1 is lit and VID2-4 are off.
Moving to 4K is never an instant change. Legacy signals and archival material need to be integrated into the 4K environment while 4K sources need to be down-converted for current 2K/HD pipelines.
Utilizing AJA's remarkable conversion algorithms, FS4 supports realtime up, down, cross-conversion from SD, HD or 2K over 12G/6G/3G-SDI video to 4K or UltraHD video and back. Both Quadrant (Square Division) and 2SI (Two Sample Interleave) output formats are supported.
AJA's powerful hardware conversion technology ensures the highest image quality for your productions. Key conversion features include:
All done in beautiful 10-bit with dedicated hardware.
Video and Audio deserve the connectivity and bandwidth required to meet the demands of your projects.
FS4 utilizes standard BNC as well as optional SFP inputs and outputs to integrate easily into a variety of workflows and facilities with support for SDI worklows all the way up to 12G.
FS4 has BNC and Fiber* inputs and outputs to accept 4K/UltraHD/2K/HD/SD resolution SDI signals in Single Channel Mode. In Four Channel mode 2K/HD/SD inputs can be be routed to multiple locations simultaneously without the need for any external signal distribution.
A looping Reference Input allows the FS4 to be locked to your house reference signal for rock solid stability.
Digital Audio can be disembedded and embedded between SDI, MADI and AES for an incredible array of routing possibilities.
* SFP inputs and outputs are optional.
FS4's SFP options include both 12G/6G-SDI HD-BNC and Fiber I/O options including single and dual channel Single Mode options and Multi-Mode options, allowing great SDI flexibility and fiber cable runs of up to 10 kilometers to be connected directly to the FS4 without the need for separate fiber to SDI conversion.
Optional 12G/6G-SDI SFPs:
Optional 3G-SDI Multi-Mode SFPs:
Single and Dual Channel Fiber connectors supported:
Single Channel LC connector modulesSingle Channel SC connector modulesDual Channel LC connector modules
Possible CWDM options:
Choose from multiple wavelength CWDM SFPs, allowing advanced multiplexing of signals over a single fiber connection.
The growth of 5.1 and 7.1 audio has increased the number of audio channels that must be managed in a production, The MADI standard provides a convenient way to transport huge numbers of audio channels along a single cable, simplifying the cabling demands for broadcasters, mobile trucks and production. FS4 supports both fiber and coax MADI input and output. An internal 277 x 208 mono audio matrix allows you to route 1 to 1 or 1 to many with full routing of MADI, mixdowns and all audio coming from SDI, fiber and AES sources for an incredible amount of audio processing capability in a single box.
FS4 supports closed captioning and the conversion of closed captioning between 2K/HD/SD and 4K/UltraHD formats - including full conversion of CEA-608 and CEA-708 standards. FS4 can preserve closed captioning even when converting between formats, removing the need to reinsert closed captions after conversion.
Automatically sets Active Format Description information to match the converted signal. This means AFD information does not have to be inserted after conversion and provides accurate information for devices that understand AFD.
FS4 is network ready and supports SNMP monitoring and web-based remote control. Units can be connected to any Ethernet network via the built-in 10/100/1000MB Ethernet port, allowing control and configuration of multiple FS units from any web browser on a connected computer. Configurations can be saved and applied to multiple units, ensuring consistency and quick configuration in large installs.
To integrate smoothly with the existing automation of a facility, FS4 can also receive external GPI commands to trigger a variety of functions.
AJA’s technical support is recognized as among the best in the industry and is available to all AJA customers. If you need assistance with any aspect of your FS installation, configuration, operation or encounter any technical issue, AJA Support will work with you to get up and running.
FS products are covered by a generous five year warranty. Please see the individual Product’s Manual for additional specifics around warranty conditions for the product itself.
Firmware v2.0 for FS4, this release includes:
1080i Output Filter control improves down-converted image quality to 1080i output.
Maintain A/V Sync couples video and audio delay controls to maintain audio-sync when adjusting Video Timing
Audio Delay now displayed in milliseconds and audio samples
Processor channel names can now be edited for easier identification
Please read the Release Notes for more details.
Firmware v184.108.40.206 adds PsF support for 4K/UltraHD formats and provides performance enhancements. This update is recommended for all FS4 users. Please read the Release Notes for more details.
Firmware v220.127.116.11 adds 8-Channel audio support for the HDMI output and provides performance enhancements. This update is recommended for all FS4 users. Please read the Release Notes for more details.
Firmware v18.104.22.168 provides support for SMNP and 12G/6G HD- BNC and Fiber options as well as various enhancements. This update is recommended for all FS4 users. Please read the Release Notes for more details.
Firmware v22.214.171.124 is a maintenance release that addresses two known issues. This update is recommended for all FS4 users. Please read the Release Notes for more details.
FS4 Firmware v126.96.36.199 is the initiial release of firmware for AJA's FS4 Frame Synchronizer and Converter. Please read the release notes for more details.
AJA FS4 Installation & Operation Guide v2.0r1
FS4 QuickStart Guide v2.0
180 Litton Drive, Grass Valley, CA 95945 USA Phone: +1-530-271-3190, Fax: +1-530-271-3140 Email: firstname.lastname@example.org
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Four Independent 2K, HD, or SD Video Processors One 4K, UltraHD, 2K, HD, or SD Video Processor
(4K) 4096 x 2160p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 (UltraHD) 3840 x 2160p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 (2K) 2048 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 (HD) 1920 x 1080p 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 (HD) 1920 x 1080PsF 23.98, 24, 25, 29.97, 30 (HD) 1920 x 1080i 50, 59.94, 60 (HD) 1280 x 720p 50, 59.94, 60 (SD) 625i 50 (SD) 525i 59.94 YCbCr, 4:2:2, 10-bit
4 x 3G-SDI inputs, 4 x BNC 4 x 3G-SDI inputs, 4 x Fiber or HD-BNC (optional SFP modules) SFP fiber modules, 3G-SDI, dual LC, single LC, or single SC, SMPTE-297 SFP fiber module, 12G/6G-SDI, dual LC, SMPTE-297 SFP coax module, 12G/6G-SDI, dual HD-BNC 12G/6G/3G/HD/SD, SMPTE-259/292/424/2081/2082 Single Link 12G/6G-SDI (with optional SFP module) Quad Link 3G-SDI Level A or B-DL (4 x 3G), SMPTE-425-5 Dual Link 3G-SDI Level B-DS (2 x 3G), SMPTE-425-3 Single Link 3G-SDI Level A, B-DL, or B-DS, SMPTE 425 Quad Link HD-SDI (4 x 1.5G) Dual Link HD-SDI (2 x 1.5G), SMPTE-372 Single Link HD/SD Quadrant (Square Division) or 2SI (Two Sample Interleave) 4K/UltraHD input pixel mapping 8 x 1 selector feeds video processor(s)
4 X 3G-SDI outputs, 4 x BNC 4 x 3G-SDI outputs, 4 x fiber or HD-BNC (optional SFP modules) SFP fiber modules, 3G-SDI, Dual LC, Dual LC CWDM, Single LC, or Single SC, SMPTE-297 SFP fiber module, 12G/6G-SDI, dual LC, SMPTE-297 SFP coax module, 12G/6G-SDI, dual HD-BNC 12G/6G/3G/HD/SD, SMPTE-259/292/424/2081/2082 Single Link 12G/6G-SDI (with optional SFP module) Quad Link 3G-SDI Level A or B-DL (4 x 3G), SMPTE-425-5 Dual Link 3G-SDI Level B-DS (2 x 3G), SMPTE-425-3 Single Link 3G-SDI Level A, B-DL, or B-DS, SMPTE 425 Quad Link HD-SDI (4 x 1.5G) Dual Link HD-SDI (2 x 1.5G), SMPTE-372 Single Link HD/SD Quadrant (Square Division) or 2SI (Two Sample Interleave) 4K/UltraHD output pixel mapping
1 x BNC, 1 x 3G-SDI output 3G-SDI/HD/SD, SMPTE-259/292/424, 10-bits 1 x HDMI, 1 x HD output 2K/HD/SD, HDMI v1.4a Monitored Video Processor output (video and audio) is simultaneously output on both connectors 4K/UltraHD down-converted to 2K/HD Crop control on HDMI output
Motion adaptive deinterlacer Proc amp controls Color corrector Legalizer Framerate conversion/film cadence removal/insertion (3:2, 1:2, 2:1, 2:3) Adjustable delay 0-6 frames with H and V timing controls in lines and pixels Closed Captioning conversion (CEA-608/CEA-708) AFD input detection, down-convert control, and output pass through or overwrite Freeze (manual or on input signal loss) to black or last good frame Matte generator for background fill Video test generator Nominal video delay, HD/SD, 2 frames (LFR), 4 frames (HFR)
Convert any supported input format to any supported output format, within the same frame rate family. These three families are: 59.94, 29.97, 23.98 50, 25 60, 30, 24
Supported in 2K/HD/SD formats Zoom in and out Reposition Region of Interest (ROI)
Hardware 10-bit Zoom 14:9: results in a 4:3 image zoomed slightly to fill a 14:9 image with black side bars Zoom Letterbox: results in image zoomed to fill fullscreen Zoom Wide: results in a combination of zoom and horizontal stretch to fill a 16:9 screen; this setting will introduce a small aspect ratio change
Hardware 10-bit Anamorphic: fullscreen Letterbox: image is reduced with black top and bottom added to image area with the aspect ratio preserved Crop: image is cropped to fit video output format
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
48 kHz sample rate 8 x SDI embedded inputs (16-Channels each) 128-Channels, 24-bit (20-bit SD), SMPTE-272/299 8 x balanced AES inputs (16-Channels), 1 x DB-25 16-Channels, 24-bit, AES-3 2 x MADI inputs, 1 BNC, 1 x ST Fiber 128-Channels, 24-bit, AES-10
48 kHz sample rate 1 x SDI embedded output per Video Processor (16-Channels each) 16-Channels (in single Video Processor mode), 24-bit (20-bit SD), SMPTE-272/299 64-Channels (in four Video Processor mode), 24-bit (20-bit SD), SMPTE-272/299 8 x balanced AES outputs (16-Channels), 1 x DB-25 16-Channels, 24-bit, AES-3 2 x MADI outputs, 1 BNC, 1 x ST Fiber 128-Channels, 24-bit, AES-10
277 x 208 mono audio matrix, route 1 to 1, 1 to many Inputs: 128 embedded, 16 AES, 128 MADI, 2 stereo mixdowns, 3 tone generator Outputs (Four Channel mode): 16 AES, 128 MADI, 64 embedded Outputs (Single Channel mode): 16 AES, 128 MADI, 16 embedded Input adjustment controls for each channel Gain +18 to -18 dB in 0.5 dB steps Phase invert Input adjustment controls for each channel pair Delay -16ms to +1sec in 20.8 us steps Two independent 5.1 or 7.1 to stereo mixdown processors with gain adjust High quality Sample Rate Conversion supported on all audio inputs SRC bypass for non-PCM audio (e.g. Dolby E, AC-3, etc) Audio tone generator (mute, 400 Hz, 1 kHz)
External, 2 x BNC Looping, nonterminating Blackburst or tri-level sync
Lock to External Reference Lock to SDI input 1 thru 8 Free run based on Temperature Compensated Crystal Oscillator
1 x RJ-45, 10/100/1000 Ethernet Embedded web server for remote control SNMP
Display Keypad with status LEDs Two rotary/push knobs Comprehensive alarm indicators
Each mode supports 40 Presets
1 x 25-pin D-Connector Four optically isolated GPI inputs Four optically isolated GPO outputs
17.5in x 16in x 1.75in (1RU) (444.5mm x 406.5mm x 44.4mm)
7.0 lb (3.6 kg)
100-240 VAC 50/60
AJA FS4 4-Channel 12G-SDI/1-Channel UHD 4K FrameSynchronizer/Converter
Limited 5-Year Warranty