Getting input from a rj 45 connection and writing data to Sd card.
We are using network taps on network and want the circuit board to run [url removed, login to view] should be storing data on sd card for later [url removed, login to view] board should be taking input from a rj 45 connector and write data to removable sd card.
Circuit board should be as compact as possible. Ideally we are looking at size of 3.5" x 2.5".
Circuit should be locally powered thorugh its own battery power source.
If possible we want the data to be encrypted before its written to sd [url removed, login to view] ever we do not require any advance encryption algorithim, any simple encryption can be [url removed, login to view] can be programmed into micro controller and will not be changed.