MPEG2 audio/video capture board | Model 512

Model 512 MPEG2 audio/video capture board
  • Real time MPEG-1/MPEG-2 video encoder/decoder for NTSC, PAL
  • Supports variable and constant bit rates
  • 16-bit audio
  • 3 TTL digital I/Os
  • Text overlay

Model 512 is a legacy product and is not recommended for new designs. Legacy products are available but may have lead times up to 12 weeks and minimum order requirements. We recommend model 953 as a substitute for this product.


Model 512 is a PC/104 frame grabber that captures and transfers full-frame (640x480) video at 30 frames per second. It overcomes the low bandwidth of the PC/104 bus by using hardware compression to produce encoded MPEG2 data streams of 100 kbits to 10 Mbits per second.


MPEG-2 data reduces the amount of memory required to store full motion video. The compressed data requires a smaller transmission bandwidth. This makes it possible to transmit 30 frames/second video over the PC/104 bus or over a 10/100 Base-T Ethernet. The hardware compression circuit uses a motion estimation algorithm to produce smooth images from interlaced cameras. The length of MPEG-2 video streams is not limited by the viewing software.


Encoded MPEG-2 data can also be decompressed by the 512's hardware to produce composite video. The video output is available at a flat cable header.

Video channels

The 512 has four multiplexed video channels that function as four separate composite channels or as two S-video inputs. This model does not support audio. For an MPEG-2 frame grabber with audio, see our model 516.

Model 512TA can be used to connect the 512 to video sources


Digital I/O

Three bi-directional logic lines are under software control.

Self test

Digitized video inputs can be looped back to the output circuits to allow camera adjustments. The 512's D/A can be programmed to generate color test bars. This is useful for testing the video output channel.


Capture rate30 frames/second (NTSC, RS-170, CCIR)
25 frames/second (PAL)
A/D resolution8 bits luminance
8 bits chrominance
Output resolution768x576 (PAL)
640x480 (NTSC, RS-170)
Video input2 S-video or 4 composite
(4 multiplexed input channels total)
Video outputPAL or NTSC from a BNC connector
Output dataMPEG-2 streaming data at rates of 100 kbits to 10 Mbits/second
Digital I/O3 bi-directional TTL signals
Board dimensions(W x H): 3.80 x 3.55 inches
Input power5 V (at 280 mA)
Bus structurePC104
Address mappingMemory-mapped
Mating Connectors
Crimp HousingMolex P/N 51110-2450
Crimp PinsMolex P/N 50394-8100
Crimp ToolMolex P/N 11-01-0204
Ribbon Cable ConnectorMolex P/N 87568-24X
Number of 512s per system2

Model 512 board layout



File Version Type Size
Model 512 DOS Manual1.0.0PDF238 KB
Windows Driver Instruction Manual1.0.0PDF285 KB
QNX Driver Manual1.0.0PDF510 KB


File Version Type Size
DOS Driver for Model 5121.0.0ZIP252 KB
Linux Driver0.6.0GZ57 KB
Windows Driver1.2.0ZIP300 KB
QNX Driver1.0.0ZIP122 KB
Other Operating Systems
Need a software development kit for another operating system? We can port our SDK to
your OS or provide the information you need to do it yourself. Contact Sales for details.

Pricing & Ordering

Model Description Qty 1 Qty 2-9 Order Qty.
512MPEG2 audio/video capture boardCallCall 
301-06PC 104 and PC 104+ expansion busCallCall 
322CRT/LCD display adapterCallCall 
Power supplies
207-01Isolated power supply, 5V$216$200
207-02Isolated power supply, 5V and ±12V$259$254
610C3Cable, coax, BNC composite video, 1-meter$30$30

SENSORAY | 7313 SW Tech Center Dr. | Tigard, OR 97223 | 503.684.8005 | Email Us


Employment | Privacy Policy | Press Releases | Copyright © 1982-2018 Sensoray ~ All Rights Reserved