Acronyms and Abbreviations
Acronym
Definition
Acronym
Definition
AWG
American Wire Gauge
PDM
Power Distribution Module
BoP
Balance of Plant
PE
Protective Earth
CDH
Control Data Highway
PLC
Programmable Logic Controller
CMOS
Complementary Metal-Oxide Semiconductor
RLD
Relay Ladder Diagram
CRC
Cyclic Redundancy Code/Check
RTD
Resistance Temperature Device
DAC
Digital-to-Analog Converter
RTU
Remote Terminal Unit
DCE
Data Communication Equipment
SDI
System Data Interface Protocol
DCS
Distributed Control System
SIFT
Software Implemented Fault Tolerance
DHCP
Dynamic Host Configuration Protocol
TMR
Triple Modular Redundancy
DMZ
Demilitarized Zone
TTL
Transistor-transistor Logic
EGD
Ethernet Global Data
UDH
Unit Data Highway
EMC
Electromagnetic Capability
UDP
User Datagram Protocol
EMI
Electromagnetic Interference
UTC
Coordinated Universal Time
ERA
Electrical Riser Angle
UTP
Unshielded Twisted Pair (cabling)
FE
Functional Earth
VLAN
Virtual Local Area Network
GPS
Global Position System
WAN
Wide Area Network
GSM
GE Standard Messaging
GTS
Global Time Source
HMI
Human-machine Interface
HRSG
Heat Recovery Steam Generator
IEC
International Electrotechnical Commission
IEEE
Institute of Electrical and Electronics
Engineers
KP
Keyphasor*
LAN
Local Area Network
MPU
Magnetic Pickup
MDH
Monitoring Data Highway
MTBF
Mean Time Between Failures
MTBFO
Mean Time Between Forced Outage
MTTR
Mean Time To Repair
NEMA
®
National Electrical Manufacturer’s
Association
NFPA
National Fire Protection Association
NTP
Network Time Protocol
PDH
Plant Data Highway
System Guide
GEH-6721_Vol_I_BP
5
Public Information