Serial devices remote access and sharing technology ®

All communications are moving to ignore time and distance limits. Mobility is one of most wanted property of every device.



Serial interfaces have many limitations such as wire transfer length, number of simultaneously connected devices, only particular computer operator can work with device etc. Slight attempts of sharing were made by OS vendor (printer, disk) but it is not enough. To remove all these restrictions and bring mobility and accessibility to serial devices our company created @nywhere™ technology and in particular Serial devices remote access and sharing technology®.





The main goal is serial stream redirection over network and Internet. It means that the device, which has serial interface (COM, USB, IEEE 1394 FireWire) can be easily accessed from any network-connected node. Now we have redirection systems for COM and USB as the most common serial interfaces.





To reach the goal we created client-server system, which :




1) creates virtual com-port on client side (remote machine)




2) redirects all serial stream to physical COM port at server (where COM device connected).





So we get emulated COM device on client side. It should be mentioned that with COM@nywhere engine, redirection process is fully transparent for host and target operating systems.





Please see our functional diagram below – that is how we use our technology in our COM@nywhere solution:











 

On remote workstation side bus enumerator loads driver for com port and virtual com-port appears in the system. After that client service monitors all input/output serial data and redirects it to server service, which is submitting data (and different com port signals such as DTR, CTS, DSR, RTS, RING etc) to physical port with connected hardware. So we have accurate virtual equivalent of physical device at remote side.





To reach high performance we created special adaptive module FastBlob® that allows reducing network timings and transferring data without essential delays. We spend less than 30% of the whole transfer time during full speed transfers for redirection (if network bandwidth is sufficient) that is normal for errorless device interaction.





To reject possible threats we created own Check’n’Recovery® engine.




Threat	Resolving
DoS attack	List of trusted clients
Traffic sniffing	Secure SSL connection
Buffer overrun exploiting	Strong error checking algorithms

 





For network transport we use TCP/IP stack so it’s absolutely common to use our system for wireless transfers. It means that you can make your COM devices wireless without any upgrade and access it from any node connected to WiFi or WiMax.





We're constantly searching for new models of integration with existing systems. The secret is in build-in WLAN station with COMB@nywhere device workstation as firmware. This configuration allows COM device be fully independent of desktop computer and removes serial interface limitations. Also our technology allows gathering many serial ports at one desktop making it perfect operators place. Need to obtain data from many serial devices and analyze it no matter how many serial ports do you have – choose our technology.





 

We are open for cooperation with you – together we’ll make the world mobile!