The janusBox  represent the 6LoWPAN Gateway and the building control unit, which is in charge of linking an internet network and a sensor network. When, after the janus box Router delivers information of the Subnet(Prefix) which Sensor Nodes control to them, each Sensor Node would communicate with outer network(internet), it sends packet to the IP-USN by using such Router information and the IP-USN Router to receive it plays a role convert into a packet to recognize in the internet network in the Adaptation class and send it. The janus Router, in order to reduce smooth operation and load, implements only a role to determine a pathway to deliver a packet in the IP class and deliver it and implements a matching function between an internet network and a sensor network so that a Peer-to-Peer communication can be made even to the gadget like sensor node.

The janus Router of wsbp electonics is an essential equipment of the network to implement a Routing function between the IPv6 USN node and common IPv6 host seamlessly through the IP-USN PAN and the IPv6 protocol based on the 6LoWPAN over IEEE 802.15.4 and provide convenience of the IPv6 from a control server to a USN terminal node with unified protocol.

In  the heart of janusbox are include a control process stations with the  SoftPLC runtime, free programmable DDC application with both universal and HVAC-specific function blocks. Process stations with touch screens use graphical HMI interface for supervision and control. The platform used are Linux according to communication and performance demands.