ProSoft Technology PLX8X-MNET-61850 - Manual (Page 222)

Glossary of Terms PLX8x-MNET-61850 ♦ Communication Gateway
User Manual Modbus TCP/IP to IEC 61850
Page 222 of 228 ProSoft Technology, Inc.
May 14, 2014
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Telecommunication Environment
Communication interfaces associated with telecommunications.
Telecommunications Interface
Interface point to the telecommunications network link to the remote power
system network control center.
Telemonitoring Interface
Communications link to a monitoring engineer's workplace.
Test Equipment
Tools and instruments which simulate and verify the inputs/outputs of the
operating environment of the SAS, such as switchgear, transformers, network
control centers or connected telecommunication units on the one side, and the
communication channels between the IEDs of the SAS on the other.
Test Facility
Organization which is able to provide appropriate test equipment and trained staff
to perform conformance testing. The management of conformance tests and the
resulting information should follow a quality system and a test facility should be
certified in accordance with IEC-61850-10.
Test Item
One single test step from the sequence of tests defined to verify compliance.
Transient Data
Pertaining to or designating a phenomenon or a quantity which varies between
two consecutive states during a time interval short compared to the time-scale of
interest. Data objects with this designation only exist at the time they occur and
must be logged to prove the evidence of their existence.
Transmission
The part of the power system operating at voltages of typically 110 kV and
above.
Transport Layer
Layer 4 of the OSI reference model for Open Systems Interconnection. It
establishes the transport connection and addressing, controls and monitors the
data rate flow and the release of the transport connection. Enables variable size
data files to be seamlessly transported.
Type Test
Verification of correct behavior of the IEDs of the SAS by use of the system
tested software under the environmental test conditions stated in the technical
data. This test marks the final stage of IED hardware development and is the
precondition for the start of full production. This test must be carried out with
IEDs that have been manufactured through the normal production cycle.