INTRINSICALLY SAFE CONNECTION UNIT WITH A NETWORK INTERFACE, INTRINSICALLY SAFE APPLIANCE AND NETWORK INTERFACE FOR IT

WIPO Patent Application WO/2011/092651

A1

Intrinsically safe connection unit with a network interface for intrinsically safe appliances in explosion-risk areas, having a housing 14, a voltage supply connection 12, plug connection 11 for connecting an intrinsically safe appliance via a transmission cable, and a decoupling circuit. For allowing even a multiplicity of network subscribers to be connected in the explosion-risk area with less wiring complexity, a plurality of plug connections 11A, 11B of the same type are provided as network interface, each being preceded by a separate decoupling circuit, and the voltage supply connection 12 builds a central feed connection with separate supply cores 13A, 13B, 13C for each plug connection 11A, 11B, 11C, each having at least two plug contacts 21 for data communication and at least two plug contacts 22 for supplying power to the connectable appliances via the transmission cable. The invention relates also to a Controller and a network interface for use therewith.

HERMANN HELMUT (DE)
LENZING MARKUS (DE)
SCHWINNE KARSTEN (DE)
WESELMANN JOHANNES (DE)

PCT/IB2011/050376

August 04, 2011

January 28, 2011

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BUCYRUS EUROPE GMBH (DE)
HERMANN HELMUT (DE)
LENZING MARKUS (DE)
SCHWINNE KARSTEN (DE)
WESELMANN JOHANNES (DE)

E21F17/04; G05B19/042; H04L12/10

WO2007040539A1	2007-04-12
WO2006041949A1	2006-04-20
WO2007088387A1	2007-08-09

US6037857A	2000-03-14
DE102007036964A1	2009-02-05
DE102005042257A1	2007-03-15
EP0666631A2	1995-08-09
EP1883179A1	2008-01-30
US20100283560A1	2010-11-11
DE102005042257B4	2007-10-31

ALTHAUS, Arndt et al. (Postfach 19 04 08, Köln, DE)

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