| Model 2411 | Still Image Video Server | ||||||||||||||||||||||||||||||||
Features
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Image compression
A JPEG compression function allows efficient use of internal storage and speeds downloading stored images. Typical compression factors of 20:1 yield good quality images. Image capture Images are captured with Sensoray’s 311 frame grabber that uses the popular BT-878A capture chip. The 311’s four-channel multiplexer allows selecting any one of four composite inputs or one S-video input and three composite signals. One of the 311’s general-purpose digital I/O lines has been programmed to initiate a frame capture upon detecting a contact closure from an external switch. Image storage Captured frames are initially stored in the CPU’s RAM after which they may be transferred to a RAM disk or to optional CompactFlash or a hard drive. The optional storage requires the addition of Sensoray’s model 340 CardBus adapter. FTP server The 2411 is programmed with an FTP server to facilitate image transfers to a remote computer. The FTP server may also be used to download custom application programs. The server is accessible from a command line or from a browser such as Windows Explorer or Konqueror. Linux OS The 2411 uses an abbreviated form of Suse Linux. The OS resides in flash memory chip soldered to the CPU. Approximately 6 Mbytes is available for user applications. The 2411 is not available with other operating systems or other compiled Linux kernels. Programming information is detailed in an instruction manual at the 2411's web page. Unused resources Model 2411 has some unsupported communication ports. The basic unit, model 2411-1, has one unused serial port. Adding model 340 to the stack for models 2411-2, 2411-2 and 2411-4 adds two unsupported USB 1.1 ports plus an additional 10/100 BaseT network port. Although these resources are not supported by the 2411, Linux drivers are available at the 340’s web page. Power supply The PC/104+ card stack is powered from model 207 power supply. Input voltages may be from 9 to 36 VDC. The unit can supply 5 and +/- 12 volts to external devices. Specifications
Images and Mechanical Drawings
Prices
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