IEC 61850–8–1
Communication protocol standard
IEEE
Institute of Electrical and Electronics Engineers
IEEE 802.12
A network technology standard that provides 100 Mbits/s on twisted-
pair or optical fiber cable
IEEE P1386.1
PCI Mezzanine Card (PMC) standard for local bus modules. References
the CMC (IEEE P1386, also known as Common Mezzanine Card)
standard for the mechanics and the PCI specifications from the PCI SIG
(Special Interest Group) for the electrical EMF (Electromotive force).
IEEE 1686
Standard for Substation Intelligent Electronic Devices (IEDs) Cyber
Security Capabilities
IED
Intelligent electronic device
IET600
Integrated engineering tool
I-GIS
Intelligent gas-insulated switchgear
IOM
Binary input/output module
Instance
When several occurrences of the same function are available in the IED,
they are referred to as instances of that function. One instance of a
function is identical to another of the same kind but has a different
number in the IED user interfaces. The word "instance" is sometimes
defined as an item of information that is representative of a type. In
the same way an instance of a function in the IED is representative of a
type of function.
IP
1. Internet protocol. The network layer for the TCP/IP protocol suite
widely used on Ethernet networks. IP is a connectionless, best-effort
packet-switching protocol. It provides packet routing, fragmentation
and reassembly through the data link layer.
2. Ingression protection, according to IEC 60529
IP 20
Ingression protection, according to IEC 60529, level 20
IP 40
Ingression protection, according to IEC 60529, level 40
IP 54
Ingression protection, according to IEC 60529, level 54
IRF
Internal failure signal
IRIG-B:
InterRange Instrumentation Group Time code format B, standard 200
ITU
International Telecommunications Union
LAN
Local area network
LIB 520
High-voltage software module
LCD
Liquid crystal display
LDCM
Line data communication module
LDD
Local detection device
LED
Light-emitting diode
LNT
LON network tool
LON
Local operating network
MCB
Miniature circuit breaker
MCM
Mezzanine carrier module
MIM
Milli-ampere module
MPM
Main processing module
MVAL
Value of measurement
Section 10
1MRK 500 127-UEN D
Glossary
88
670 series
Operation manual
