IDS-5000 series are innovative device server which offers many powerful features for HW & SW redundant features. When the connection between master-link and LAN fails, the IDS-5XX2 series can automatically switch to another LAN port within 10mS, and still guarantees a non-stop connection. They also supports switch mode, users can use Daisy Chain to reduce the usage of Ethernet switch ports. Secondly, the IDS-5000 series can simultaneously transfer data into 5 host PCs. This feature can assure all critical data that saved in different host PC to avoid Ethernet break or host PCs failure. Thirdly, the IDS-5000 series provides dual redundant power inputs on DC power jack and terminal block. The IDS-5000 series also provides NAT pass through function so that users are able to manage IDS-5000 series inside or outside the NAT router. It is easy for different IP domain users to use IDS-5000 series. Therefore, IDS-5000 series are the best communication redundant solution for current application of serial device.