Industrial ETHERNET

Dual Homing
DVMRP
A term that was coined in connection
with FDDI networks. Dual Homing
is a technology in which a device is
connected to a network through 2
independent connecting points. One
connecting point is for the primary
connection, the other is a standby
connection. If the primary connection
fails, the standby connection is automatically
activated. With this technology,
it is also possible to connect network
segments redundantly.
Distance Vector Multicast Routing
Protocol. Internetwork gateway protocol,
largely based on RIP, that implements a
typical dense mode IP multicast schme.
DVMRP uses IGMP to exchange routing
datagrams with its neighbors.
EN
EN 61000-4-2
EN 61000-4-3
variables that may possibly disturb other
devices in their environment.
European Norm
European standards relate to standards
developed by CENELEC and CEN.
EMV Part 4: Measurement and Testing
Processes, Main chapter 2: Testing
interference immunity to the discharge
of static electricity. Details in the catalog:
x kV Contact discharge
x kV Air discharge
EMV Part 4: Measurement and Testing
Processes, Main chapter 3: Testing
interference immunity to high-frequency
electromagnetic fields.
DWDM
Dynamic DNS
EANTC
EGP
Dense Wavelength Division Multiplex.
Assigns always the same name also if
the IP-address of one client changes.
See also DNS.
European Advanced Networking Test
Center.
Exterior Gateway Protocol
Classification of routing protocols for
exchanging information between routers
of independent networks.
EN 61000-4-4
EN 61000-4-5
EMV Part 4: Measurement and Testing
Processes, Main chapter 4: Testing
the Interference immunity to fast, short
disturbance variables (Burst). Details in
the catalog:
x kV DC Power lines
x kV Data lines
EMV Part 4: Measurement and Testing
Processes, Main chapter 5: Testing
interference immunity to surges. Details
in the catalog:
x kV Power supply asymmetrical
(power supply)
x kV Data lines
EIA
www.eia.org
Electronic Industries Association American
industrial association of
electrical industry active in the field of
standardization. Standards of the EIA
are designated with RS (related EIA
standard). The well-known standards
include the serial interfaces RS 232 C,
RS 422 and RS 485.
EN 61000-6-2
EN 50081-1
Generic standard Part 6-2: Interference
immunity in industry.
Generic Standard Interference Emission,
Part 1: Residential, business and trade
sectors as well as small businesses.
EMC
Electromagnetic compatibility.
In EMV, both the aspects of interference
immunity as well as interference emission
must be kept in mind. Electrical
devices, installations and systems must
have a specific immunity against normal
interference effects that normally occur
in the planned environment. In addition,
devices should not emit any interference
EN 50081-2
EN 50082-1
EN 50082-2
Generic Standard Interference Emission,
Part 2: Industry.
Generic Standard Interference Immunity,
Part 1: Residential, business and trade
sectors as well as small businesses.
Generic Standard Interference Immunity,
Part 2: Industry – no longer valid since
the 1.4.2002.
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