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Modes of Operation Four independent 2K, HD, or SD video processors
One 4K, UltraHD, 2K, HD, or SD video processor
Video Formats (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) 525i 59.94
(SD) 625i 50
YCbCr, 4:2:2, 10-bit
Video Input Digital 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 processors
Video Output Digital 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
Monitor Output 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
Video Processing 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
Closed Caption 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
4K/UltraHD, 3 frames (LFR), 6 frames (HFR)
HD/SD, 2 frames (LFR), 4 frames (HFR)
Format Conversion 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
Scaling Supported in 2K/HD/SD formats
Zoom in and out
Reposition
Region of Interest (ROI)
Up-Conversion 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
Down-Conversion 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
Aspect Ratio Conversion 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
Audio Input Digital 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
Audio Output Digital 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
Audio Processing 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: 64 embedded, 16 AES, 128 MADI
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 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)
Reference Input External, 2 x BNC
Looping, nonterminating
Blackburst or tri-level sync
Genlock Lock to External Reference
Lock to SDI input 1 thru 8
Free run based on Temperature Compensated Crystal Oscillator
Network Interface 1 x RJ-45, 10/100/1000 Ethernet
Embedded web server for remote control
SNMP
Front Panel Display
Keypad with status LEDs
Two rotary/push knobs
Comprehensive alarm indicators
Presets Each mode supports 40 Presets
GPI 1 x 25-pin D-Connector
Four optically isolated GPI inputs
Four optically isolated GPO outputs
Power 100 to 240 VAC 50/60 Hz (Dual, redundant power supplies), 55 W typical; 70 W maximum
Environment Operating Temperature: 32 to 104°F (0 to 40°C)
Storage Temperature: -40 to 140°F (-40 to 60°C)
Operating Relative Humidity: 10 to 90%, non-condensing
Operating Altitude: <10,000' (<3,000 m)
Dimensions (W x D x H) 17.5 x 16 x 1.75" (1RU) (44.4 x 41 x 4.45 cm)
Weight 7 lb (3.2 kg)

FS4 is a 1-Channel 4K/UHD or 4-Channel 2K/HD/SD frame synchronizer as well as up, down, and cross- converter. AJA’s flagship frame synchronizer and converter provide incredible versatility and connectivity in an ultra-slim 1RU frame for all your 4K/UHD and 2K/HD/SD conversion requirements. It offers a broad range of connection options for both audio and video, FS4 can perform the function of four separate units in 2K/HD/SD or integrate all channels and processors together for maximum reliability for 4K/UHD productivity. The user can disembed and embed Digital audio between MADI, SDI, and AES for an array of routing possibilities. Hardware conversion technology enables better image quality for the user's productions.

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