Appendix B: Glossary
AC Alternating current
BCB Battery circuit breaker
CSA Cross sectional area
DC Direct current
EIB External interface board
EMC Electromagnetic compatibility
EMI Electromagnetic interference
EOD End-of-discharge
EPO Emergency power off
I/O Input/output
IGBT Integrated gate bipolar transistor
LBS Load bus synchronizer
TOUCHSCREEN Liquid crystal display
LED Light-emitting diode
MCCB Moulded-case circuit breaker
PC Personal computer
PE Protective earth
RCCB Residual current circuit breaker
RCD Residual current detector
REPO Remote emergency power off
SCR Silicon-controlled rectifier
SNMP Simple network monitoring protocol
STS Static transfer switch
SVPWM Space vector pulse width modulation
UPS Uninterruptible power system
VRLA Valve-regulated lead-acid
Appendices
190
Vertiv™ Liebert® EXM2 UPS User Manual
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