
FS1-X
FS1-X is the next evolution in frame synchronization and conversion. Within its compact 1RU
chassis, FS1-X integrates an amazing array of video and audio connectivity and processing,
including 56- and 64-channel MADI audio over coax or fiber. With its flexible architecture, FS1-X
utilizes a high-quality, motion adaptive linear Frame Rate Converter for smooth motion conversion
between a wide range of frame rates whether for broadcast, production or live events.
https://www.aja.com/products/fs1-x
$3,495 US MSRP
FS1-X - Spec Sheet
08/12/2019 Page 1 of 4

Video Input/Output Formats
The FS1-X supports a wide variety of video formats and connectors, as
listed below.
625i 50
525i 59.94
Composite SD Analog
SDI and Fiber
The FS1-X has two standard SDI video inputs and outputs, and two
optional Fiber video inputs and outputs.
All SDI video inputs and outputs, including Fiber, are YCbCr 4:2:2 pixel
format.
Fiber connections support 3G-SDI, SMPTE-259/292/296, 8- or 10-bits
(optional)
Single channel LC connector modules
Single channel SC connector modules
Dual channel LC connector modules
2.97 Gb 3G-SDI Level B (SMPTE 425-B / SMPTE 372)
2K 1080p 50
1080p 50 (SMPTE 274)
3G-SDI Level B 2.967 (2.97/1.001) Gb (SMPTE 425-B / SMPTE 372)
2K 1080p 59.94
1080p 59.94 (SMPTE 274)
3G-SDI Level A 2.97 Gb (SMPTE 425-A)
2K 1080p 50
1080p 50 (SMPTE 274)
3G-SDI Level A 2.967 (2.97/1.001) Gb (SMPTE 425-A)
2K 1080p 59.94
1080p 59.94 (SMPTE 274)
Dual link HD-SDI, 2x 1.485 Gb (SMPTE 372)
2K 1080p 50
1080p 50
Dual link HD-SDI, 2x 1.4835 Gb (SMPTE 372)
2K 1080p 59.94
1080p 59.94
HD-SDI, 1.4835 Gb (SMPTE 292)
2K 1080p 23.98, 29.97
1080p 23.98, 29.97
1080PsF 23.98, 29.97
1080i 59.94
720p 59.94
SD-SDI, 270 Mb (SMPTE 259-C)
625i 50
525i 59.94
HDMI
The HDMI input only accepts SMPTE video formats, and accepts
embedded audio. Video input formats are RGB or YCbCr 4:2:2 pixel
format for consumer video scan formats. Computer scan rates are not
supported.
1080p 23.98, 24, 25, 29.97, 50, 59.94
1080i 50, 59.94
720p 50, 59.94
625p 50
625i 50
525p 59.94
525i 59.94
Component HD/SD Analog
The Component Analog Input accepts YCbCr 4:2:2 pixel format,
configurable to SMPTE or Betacam levels. If the composite input is
used, the component input is not available.
1080p 23.98, 24, 25, 29.97
1080PsF 23.98, 24, 25, 29.97
1080i 59.94
720p 50, 59.94
The FS1-X composite analog video input/output formats are listed
below. If the component inputs are used, the composite input is not
available.
625i 50
525i 59.94 (switchable to NTSC 7.5 IRE or 0 IRE setup)
Reference
1080p 50 tri-level sync
1080i 50, 59.94 tri-level sync
720p 50, 59.94 tri-level sync
525i 59.94, 625i 50 analog composite
Genlock available to the current Video Processor 1 Input
Free run
Format Exceptions
The following formats are not supported:
720p 23.98, 24, 25, 29.97
All 30, 60 frame rates
4:4:4 YCbCr, RGB, or XYZ inputs
4:2:2 YCbCr 12-bit inputs
Video Format Conversion
Standard FS1-X Conversions
The standard FS1-X can convert almost any input format to nearly any
output format, as long as the frame rates are of the same frame rate
family. The three families are:
23.98, 29.97, 59.94
25, 50
24
NOTE: See "Conversion Exceptions" below
FRC FS1-X Enabled Conversion
When the factory installed Frame Rate Converter (FRC) option is present
and active, conversions between different frame rate families are supported.
An appropriate genlock reference format will be required.
Supported Conversions, FRC Enabled
Input Format Output Format
525i 59.94 625i 50; 1080i 50 625i 50; 1080i 50
525i 59.94 720p 50; 1080p 25, 50
525i 59.94 1080PsF 25 625i 50; 1080i 50
525i 59.94 2K 1080PsF 25, 50
625i 50 525i 59.94; 1080i 59.94
625i 50 720p 59.94
625i 50 1080PsF 29.97
Genlock Source
Formats Supported
625i 50; 1080i 50;
720p 50
625i 50; 1080i 50;
720p 50
525i 59.94; 1080i
59.94
525i 59.94; 1080i
59.94; 720p 59.94
525i 59.94; 1080i
59.94
FS1-X - Spec Sheet
08/12/2019 Page 2 of 4

625i 50
1080i 50
1080i 50
1080i 59.94
1080i 59.94
720p 50
720p 50
720p 59.94
720p 59.94
1080p 50
1080p 50
1080p 59.94
1080p 59.94
1080PsF 24
1080PsF 24
1080PsF 24
1080PsF 24
1080PsF
23.98
1080PsF
23.98
1080PsF
23.98
1080PsF
23.98
1080p 29.97, 59.94;
1080PsF 29.97; 2K
1080p 29.97, 59.94
525i 59.94; 1080i 59.94;
1080PsF 29.97
720p 59.94; 1080p
29.97, 59.94; 2K 1080p
29.97, 59.94
625i 50; 1080i 50;
1080PsF 25
720p 50; 1080p 25, 50;
2K 1080p 25, 50
1080p 29.97, 59.94;
1080PsF 29.97; 2K
1080p 29.97 59.94
525i 59.94; 1080i 59.94;
1080PsF 29.97
625i 50; 1080i 50;
1080PsF 25
720p 50; 1080p 25, 50;
2K 1080p 25, 50
525i 59.94; 1080i 59.94;
1080PsF 29.97
1080p 29.97, 59.94;
1080PsF 29.97; 2K
1080p 29.97, 59.94
625i 50; 1080i 50;
1080PsF 25
720p 50; 1080p 25, 50;
2K 1080p 25, 50
625i 50; 1080i 50;
1080PsF 25
720p 50; 1080p 25, 50;
2K 1080p 25, 50
525i 59.94; 1080i 59.94;
1080PsF 29.97
720p 59.94; 1080p
29.97, 59.94; 2K 1080p
29.97, 59.94
625i 50; 1080i 50;
1080PsF 25
720p 50; 1080p 25, 50;
2K 1080p 25, 50
525i 59.94; 1080i 59.94;
1080PsF 29.97
720p 59.94; 1080p
29.97, 59.94; 2K 1080p
29.97, 59.94
525i 59.94; 1080i
59.94; 720p 59.94
525i 59.94; 1080i
59.94
525i 59.94; 1080i
59.94; 720p 59.94
625i 50; 1080i 50
625i 50; 1080i 50;
720p 50
525i 59.94; 1080i
59.94; 720p 59.94
525i 59.94; 1080i
59.94
625i 50; 1080i 50
625i 50; 1080i 50;
720p 50
525i 59.94; 1080i
59.94
525i 59.94; 1080i
59.94; 720p 59.94
625i 50; 1080i 50
625i 50; 1080i 50;
720p 50
625i 50; 1080i 50
625i 50; 1080i 50;
720p 50
525i 59.94; 1080i
59.94
525i 59.94; 1080i
59.94; 720p 59.94
625i 50; 1080i 50
625i 50; 1080i 50;
720p 50
525i 59.94; 1080i
59.94
525i 59.94; 1080i
59.94; 720p 59.94
625i 50 1080p 24; 1080PsF 24
1080i 60 1080p 24; 1080PsF 24
720p 30, 60 1080p 24; 1080PsF 24
1080p 30 1080p 24; 1080PsF 24
Video Format Alarms
When incompatible I/O formats are detected, an alarm can be triggered
with these results:
Lights the relevant alarm LED on the front panel (FMT ERROR, 1 or 2)
Displays an alarm in the browser user interface
Influences selection of the first-displayed status screen
Generates an SNMP trap (if configured)
Triggers a GPI Output (if configured)
Video A/D, D/A Converters
12-bits
2x oversampled (HD)
4x oversampled (SD)
Audio Inputs/Outputs
The FS1-X can accept and route any audio inputs to any audio output.
8-Channel balanced analog I/O, DB-25F 25-pin connector (Tascam
pinout)
16-Channel AES/EBU I/O (BNC), DB-25F 25-pin connector
16-Channel SDI/HD-SDI embedded BNC (2)
16-Channel SDI/HD-SDI embedded Fiber (2)
64-Channels MADI digital audio. BNC
64-Channels MADI digital audio. Fiber
Audio Analog Levels
Analog audio input and output levels, as referenced to full scale digital,
can be set to:
+12 dBu (consumer), +15 dBu, +18 dBu, +24 dBu (professional)
Audio Adjustments
Individual audio channels (or channel pairs) can adjusted for:
Level: +/- 18 dB
Phase: Normal or Reverse
Delay: -128 to +12288 samples (-2.7 ms to +256 ms)
LAN Interfaces
10/100/1000 automatic configuration
Automatic cable crossover (auto MDI-X)
Embedded web server
SNMP
Conversion Exceptions
Selecting the following format and frame rate conversions will cause a
Video Format alarm.
Non-Supported Conversions
Input Format Output Format
525i 59.94 1080p 23.98; 1080PsF 23.98
1080i 59.94 1080p 23.98; 1080PsF 23.98
720p 29.97, 59.94 1080p 23.98; 1080PsF 23.98
1080p 29.97; 1080PsF 29.97 1080p 23.98; 1080PsF 23.98
FS1-X - Spec Sheet
GPI Interace
DB-15F: Single connector provides four inputs and four outputs. See
Appendix B for a connector pinout and GPI specifications
Size (w x d x h)
19.0" x 16.0" x 1.75" (1RU) (482.6 x 406.4 x 44.45 mm)
Weight
7.9 lbs (3.6 kg)
08/12/2019 Page 3 of 4

Power
100-240 VAC 50/60 Hz, (Dual, redundant power supplies), 55W typical,
60W with FRC option; 70W max.
Environment
Cooled via two internal fans and side vents
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)
FS1-X - Spec Sheet
08/12/2019 Page 4 of 4