公开(公告)号：AU2021211411A1

公开(公告)日：2022-08-04

申请号：AU2021211411

申请日：2021-01-20

Applicant: ROSEMOUNT INC

Inventor： HOFMEISTER SCOTT T ,  SKOW CODY J ,  KEMPKE ALLEN J ,  WIENHOLD NICHOLAS AARON ,  SCHNAARE THEODORE H

IPC: H02H9/00

Abstract: A wireless sensor network gateway (102) includes safe side circuitry (120), hazardous side circuitry (124) and isolation circuitry (122), which are supported by a housing (126). The safe side circuitry (120) includes a safe side power circuit (140), and a safe side data input/output (I/O) circuit (142). The hazardous side circuitry (124) includes a hazardous side power circuit (148), and a hazardous side data I/O circuit (152). The isolation circuitry (122) divides the safe side circuitry (120) from the hazardous side circuitry (124). The isolation circuitry (122) includes a power isolation circuit (154) that couples the safe side power circuit (140) to the hazardous side power circuit (148) and forms an intrinsic safety barrier between the safe side power circuit (140) and the hazardous side power circuit (148), and a data isolation circuit (156) that couples the safe side data I/O circuit (142) to the hazardous side data I/O circuit (152) and forms an intrinsic safety barrier between the safe side data I/O circuit (142) and the hazardous side data I/O circuit (152).