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ETHERNET ISOLATOR
Product Specifications
2
Product Specifications
2.1
Function
The Ethernet Isolator may be installed within the safe area and the Zone 2 hazardous area. As
an associated apparatus it is certified to lead intrinsically safe instrumentation into Zone 0 and
Zone 1 hazardous areas. It is a one-to-one data connector with automatic speed detection.
Data is passed through without buffering.
The Ethernet Isolator can be used for any Ethernet-based application. This includes current
and future PROFINET and FF HSE installations. This intrinsically safe solution is well suited
for:
•
mobile machinery and equipment in harsh environments
•
assemblies that are often removed, replaced or reworked
•
where cable breakage is a risk
The intrinsically safe energy limitation eliminates any need for protected installation.
Intrinsically safe Ethernet can be connected and disconnected during normal plant operation
without requiring a hot work permit.
The galvanic isolation eliminates the need for equipotential bonding between the safe area and
the hazardous area. Significant cost savings are realized through reduced installation material
and effort.
The internal design of the Ethernet Isolator includes a galvanically isolating fibre optic bridge
and a voltage and current limiting circuit. Additionally it is following the stringent requirements
for energy-efficient design and low heat dissipation leading to reduced cooling requirements
and if necessary highest packing density in the installation cabinet or equipment.
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