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4.3 Glossary of Abbreviations
A/C : Air Conditioning
ac : Alternating Current
AEOL : Active End of Line
AHr : Ampere Hour
ANC 1 : Ancillary Relay 1
ASE : Alarm Signaling Equipment
AZC : Alarm Zone Circuit, or Detection Zone
AZF : Alarm Zone Facility, or Group (AS1603.4 terminology)
AVF : Alarm Verification Facility, or Check Alarm
Bd : Board
CIE : Control & Indicating Equipment
Char : Character
Cct : Circuit
COM : COMMON relay contact
dc : Direct current
EB : External Bell
EEPROM : Electrically Erasable Programmable Read Only Memory
ELV : Extra Low Voltage
EOL : End Of Line (device)
EOLR : End of Line Resistor
Expn : Expansion
E2 : Electrically Erasable Programmable Read Only Memory
FF : Firefighter Facility (part of Display/Keyboard)
FIP : Fire Indicator Panel
FRC : Flat Ribbon Cable
I/O : Input/Output
LCD : Liquid Crystal Display
LED : Light Emitting Diode
MAF : Master Alarm Facility
Max : Maximum
Min : Minimum
MCP : Manual Call Point (Break Glass Switch)
MOV : Metal Oxide Varistor (Used for electrical Surge Protection)
msec : Millisecond
NC : Normally Closed
NDU : Network Display Unit
NO : Normally Open
No : Number
Nom : Nominal
PC : Personal Computer (small computer)
PCB : Printed Circuit Board
PSU : Power Supply Unit
PTC : Positive Temperature Co-efficient (Thermistor)
R1 : Module Relay Number 1 (program abbreviation)
RL1 : Module Relay Number 1 (text abbreviation)
RAD : Return Air Duct (Air Conditioning Plant)
RDU : Remote Display Unit
RMS : Root Mean Square
Reqd : Required
RTC : Real Time Clock
SAD : Supply Air Duct (Air Conditioning Plant)
SID : System Identification Number (Network device)
sq mm : square millimeter
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