Patent ID: 7421531
Filing Date: 2008-09-02
Classification: H04L

Abstract:
1. A system for coupling data received in fieldbus format from a fieldbus interface to a network connection, comprising: a data format converter coupled between the fieldbus interface and a bridge USB interface, the converter convening the data to USB-formatted data; a coupler coupled in cascade with the converter, and including a first insulating barrier; a host that receives the USB-formatted data, and that includes a data server interface presenting the data to the network connection; and a regulator coupling the power to the fieldbus interface to thereby power the fieldbus interface, the regulator including a DC-to-DC converter having a second insulating barrier such that data and power are isolatingly coupled between the fieldbus interface and the bridge USB interface; detects whether fieldbus power is valid, and turns off the DC-to-DC converter if the fieldbus power is detected to be valid, and turns on the DC-to-DC converter if the fieldbus power is detected to be not valid; and detects whether there is current flow and turns off the fieldbus power if there is no current flow, and turns off the DC-to-DC converter and turns on the fieldbus power on if there is current flow.