APPENDIX C: LIST OF ACRONYMS
D400 SUBSTATION GATEWAY INSTRUCTION MANUAL GE INFORMATION 183
PRP Parallel Redundancy Protocol
PSU Power Supply Unit
PTC Positive Temperature Coefficient
RMA Return Merchandise Authorization
RoHS Restriction of Hazardous Substances
RTU Remote terminal unit
Rx Receive
SCADA Supervisory Control and Data Acquisition
SCP Secure Copy Program (SCP
SNTP Standard Network Time Protocol
SOE Sequence of Events
SQL™ Structured Query Language
SSH Secure Shell
SSL Secure Sockets Layer
SVGA Super Video Graphics Array
TIA Telecommunication Industries Association
TCP/IP Transmission Control Protocol - Internet Protocol
TLS Transport Sockets Layer
TTL Transistor-Transistor Logic
Tx Transmit
UNC Unified coarse thread
UNF Unified fine thread
URL Universal Resource Locator
USB Universal Serial Bus
UTP Unshielded Twisted Pair
VA Volt Amps, unit of measure
VAC Volts, Alternating Current, unit of measure
VDC Volts, Direct Current, unit of measure
Acronym Definition