ABB RET670 Applications Manual page 881

1MRK504116-UUS C
Application manual
IP
IP 20
IP 40
IP 54
IRF
IRIG-B:
ITU
LAN
LIB 520
LCD
LDCM
LDD
LED
LNT
LON
MCB
MCM
MIM
MPM
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.
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 standard
Ingression protection, according to IEC standard, level
IP20- Protected against solidforeign objects of12.5mm
diameter andgreater.
Ingression protection, according to IEC standard, level IP40-
Protected against solid foreign objects of 1mm diameter and
greater.
Ingression protection, according to IEC standard, level
IP54-Dust-protected,protected againstsplashing water.
Internal failure signal
InterRange Instrumentation Group Time code format B,
standard 200
International Telecommunications Union
Local area network
High-voltage software module
Liquid crystal display
Line differential communication module
Local detection device
Light-emitting diode
LON network tool
Local operating network
Miniature circuit breaker
Mezzanine carrier module
Milli-ampere module
Main processing module
Section 7
Glossary
875