Glossary

Acronyms Used in This Manual

Acronym Definition
AC Alternating Current
A/D Analog-to-Digital
AI Analog Input
AO Analog Output
AWG American Wire Gauge
CD Compact Disk
CPU Central Processing Unit
CSA Canadian Standards Association
DC Direct Current
DIMM Double In-line Memory Module
DI Discrete Input
DIN Deutsche Institut für Normung
DO Discrete Output
DRAM Dynamic Random Access Memory
EMI Electromagnetic Interference
FCC Federal Communications Commission
IEC International Electrotechnical Commission
IEEE Institute of Electrical and Electronic Engineers
I/O Input/Output
IP Internet Protocol
ISA Instrument Society of America
ISO International Standards Organization
LAN Local Area Network
LED Light-Emitting Diode
MDI Medium Dependent Interface
MIL Military Standard
NVM Non-Volatile Memory
OLE Object Linking and Embedding
OPC OLE for Process Control
OTDR Optical Time Domain Reflectometer
RAM Random-Access Memory
ROM Read-Only Memory
SIMM Single In-Line Memory Module
UL Underwriters Laboratory
UPS Uninterruptible Power Supply
UTP Unshielded Twisted Pair
VAC Volts Alternating Current
VDC Volts Direct Current