MPEG2 audio/video capture board | Model 512
- 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Model 512 is obsolete. This archived information is provided as a courtesy to customers who own model 512 units.
Description
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.
Advantages
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.
Decompression
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.
Specifications
| Capture rate | 30 frames/second (NTSC, RS-170, CCIR)
25 frames/second (PAL) |
| A/D resolution | 8 bits luminance
8 bits chrominance |
| Output resolution | 768x576 (PAL)
640x480 (NTSC, RS-170) |
| Video input | 2 S-video or 4 composite
(4 multiplexed input channels total) |
| Video output | PAL or NTSC from a BNC connector |
| Output data | MPEG-2 streaming data at rates of 100 kbits to 10 Mbits/second |
| Digital I/O | 3 bi-directional TTL signals |
| Board dimensions | (W x H): 3.80 x 3.55 inches |
| Input power | 5 V (at 280 mA) |
| Bus structure | PC104 |
| Address mapping | Memory-mapped |
| Mating Connectors | |
|---|---|
| Crimp Housing | Molex P/N 51110-2450 |
| Crimp Pins | Molex P/N 50394-8100 |
| Crimp Tool | Molex P/N 11-01-0204 |
| Ribbon Cable Connector | Molex P/N 87568-24X |
| Number of 512s per system | 2 |
Model 512 board layout
Documentation
| File | Version | Date M-D-Y | Type | Size |
|---|---|---|---|---|
| Model 512 DOS Manual | 1.0.0 | 10-17-24 | 238 KB | |
| Windows Driver Instruction Manual | 1.0.0 | 10-17-24 | 285 KB | |
| QNX Driver Manual | 1.0.0 | 10-17-24 | 510 KB |
Downloads
| File | Version | Date M-D-Y | Type | Size |
|---|---|---|---|---|
| DOS Driver for Model 512 | 1.0.0 | 10-17-24 | ZIP | 252 KB |
| Linux Driver | 0.6.0 | 10-17-24 | GZ | 57 KB |
| Windows Driver | 1.2.0 | 10-17-24 | ZIP | 300 KB |
| QNX Driver | 1.0.0 | 10-17-24 | ZIP | 122 KB |
| Other Operating Systems | ||||
| Need a software development kit for another operating system? We can port our SDK to your OS for a NRE fee or, with a volume commitment, at no additional cost. Contact Sales for details. | ||||