ABB Relion SMU615 Technical Manual page 258

Section 14
Glossary
252
GPS Global Positioning System
HMI Human-machine interface
HSO High-speed output
HSR High-availability seamless redundancy
HTTPS Hypertext Transfer Protocol Secure
IEC International Electrotechnical Commission
IEC 61850 International standard for substation communication and
modeling
IEC 61850-8-1 A communication protocol based on the IEC 61850
standard series
IEC 61850-9-2 A communication protocol based on the IEC 61850
standard series
IEC 61850-9-2 LE Lite Edition of IEC 61850-9-2 offering process bus
interface
IED Intelligent electronic device
IEEE 1686 Standard for Substation Intelligent Electronic Devices'
(IEDs') Cyber Security Capabilities
IP Internet protocol
IP address A set of four numbers between 0 and 255, separated by
periods. Each server connected to the Internet is
assigned a unique IP address that specifies the location
for the TCP/IP protocol.
IRF 1. Internal fault
2. Internal relay fault
LAN Local area network
LC Connector type for glass fiber cable, IEC 61754-20
LE Light Edition
LED Light-emitting diode
LHMI Local human-machine interface
MCB Miniature circuit breaker
MM 1. Multimode
2. Multimode optical fiber
MMS 1. Manufacturing message specification
2. Metering management system
P2P peer-to-peer
PC 1. Personal computer
2. Polycarbonate
1MRS758407 B
SMU615
Technical Manual