MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual
Page 1-1
Section 1
Glossary
1 Form C
Dry contact relay configuration.
1P
Single Phase (VAC power)
3P
Three Phase (VAC power)
AGM
Absorbed Glass Mat. A fiberglass mat material used in a lead acid
battery to hold the electrolyte to the plates and keep the electrolyte
inside the battery if the case is cracked or punctured. A technology
for making a battery non-spillable and that allows non-hazardous
material handling of AGM batteries on aircraft.
ASCII
American Standard Code for Information Interchange. A character-
encoding scheme. ASCII codes represent text in computers,
communications equipment, and other devices. that use text.
Alternating Current
An electrical current that pulsates the direction of flow of electrons.
The flow changes from positive to negative. Abbreviated as AC.
Ambient Temperature The temperature of the surrounding environment such as the
cabinet or room temperature.
Amp Meter
Instrument that measures electrical current in a line.
Ampere Hour (Ah)
Term used to convey the capacity of a battery. Ampere hours is the
length of time a battery can deliver a rate of discharge under specific
conditions.
AVR
Automatic Voltage Regulation. MP2000 Buck / Boost operation
mode.
Battery
A device that produces electricity; may have several primary or
secondary cells arranged in parallel or series.
BBS
Battery Back-Up System.
BBU
Battery Back-Up Unit.
BJT
Bi-Polar Junction Transistor. A solid-state device in which the
current flow between two terminals (the collector and the emitter) is
controlled by the amount of current that flows through a third
terminal (the base).
Breakdown Voltage
The minimum voltage that causes a portion of an insulator to
become electrically conductive.
BTC
Battery Temperature Compensation. An allowance made in charge
controllers set points for battery temperatures.
Capacity
The quantity of electricity a battery can deliver at a given rate over a
specific period of time.
CAT5E
Category 5 Enhanced cable for 100MHZ, 1Gbps communications.
