There is a LAN port on the special acquisition box, and the RS-232 port on it
is just for spare use. Signal data of the instrument are transmitted to the web through
the LAN port. As long as a computer is on the LAN or on the Internet, it can work as it is
just beside the instrument.
Similar software but corresponding to different acquisition boxes can be
run simultaneously on one computer, so the number of computers as well as the data
centralizing work can be reduced greatly in one lab.