0120011-J0 Rev J
72
9� Acronyms and Definitions
AC
Alternating current
ANSI
American National Standards Institute
AWG
American Wire Gauge
BTU
British thermal unit
CAN
Controller area network
CEC
Canadian Electrical Code
CSA
Canadian Standards Association
CX
Cordex™ series; e.g., CXC for Cordex System Controller
DC
Direct current
EMC
Electromagnetic compatibility
EMI
Electromagnetic interference
ERM
Electromagnetic Compatibility and Radio Spectrum Matters
ESD
Electrostatic Discharge
FCC
Federal Communications Commission (for the USA)
GFI
Ground fault interrupt
IP
Internet Protocol
LED
Light emitting diode
LVD
Low voltage disconnect
MIL
One thousandth of an inch; used in expressing wire cross sectional area
MOV
Metal oxide varistor
MTBF
Mean time between failures
NC
Normally closed
NEC
National Electrical Code (for the USA)
NO
Normally open
OSP
Outside plant
OVP
Over voltage protection
RFT circuit
Remote feeding telecommunication circuit:
A secondary circuit within the equipment, intended to supply or receive DC
power via a telecommunication network at voltages exceeding the limits for
TNV circuits, and on which overvoltages from telecommunication networks
are possible.
RFT-V circuit
An RFT circuit, which is so designed and protected that under normal
operating conditions and single fault conditions, the voltages are limited and
the accessible area of contact is limited.
RU
Rack unit (1.75")
SELV
Safety Extra Low Voltage
TCP/IP
Transmission Control Protocol / Internet Protocol
THD
Total harmonic distortion
UL
Underwriters Laboratories