公开(公告)号：US10396854B2

公开(公告)日：2019-08-27

申请号：US15513629

申请日：2015-10-14

Applicant: Phoenix Contact Development and Manufacturing, Inc.

Inventor： Michael Colin Cherewka ,  Brenton Eugene Helfrick ,  David Katz ,  Aaron Richard Kreider ,  Todd Eugene Shadle

IPC: H04B3/56 ,  H04L12/10 ,  H04L12/40

Abstract: A method for providing galvanic isolation between an input or trunk interface (30) and multiple outputs or spur interfaces (38) for connecting field devices (14) to a trunk (20) of a two-wire (44a, 44b) process control network (10) includes connecting multiple sets of multiple spur interfaces to respective isolating elements (34). Each isolating element (34) connects a respective set of outputs or spur interfaces (38) to the trunk interface (30) and galvanically isolates (40, 42) the respective set of spur interfaces (38) from the trunk interface (30). Field devices (14) attached to different sets of spur interfaces are also galvanically isolated from one another.