Patent ID: 9166801
Filing Date: 2015-10-20
Classification: G05B,H02H,H04L

Abstract:
1. An intrinsically safe connection unit with a network interface for intrinsically safe appliances in explosion-risk areas, the connection unit comprising: a housing; a voltage supply connection on the housing and including a central feed connection; at least one plug connection on the housing for connection of a transmission cable for an intrinsically safe appliance to the connection unit; and a decoupling circuit connected upstream of each plug connection and arranged in the housing, each decoupling circuit including a resistance network in each signal path of the decoupling circuit for radio-frequency power limiting, wherein the central feed connection includes separate supply cores for each plug connection, each plug connection including at least two plug contacts for data communication and at least two plug contacts connected to the associated supply cores for supplying power to each appliance via the transmission cable.