Method and system for downloading data to network nodes

摘要

A network system comprises a terminal (101) storing a update data file, a gateway device (102) having a temporary memory (103), and a network comprising a plurality of nodes (1-n). Each node is provided with an active memory (AM) for storing a current data file and at least a backup memory (BM) for storing the update data file. Data of the update data file are sequentially transferred from the terminal (101) to the backup memory (BM) of each node through the gateway device (102) in which the date are stored into the temporary memory (103). After the update data file has been stored in the backup memory (BM), the update data file is caused to be active and the current data file to be non-active. <IMAGE>