21 Glossary Of Terms
ACKD : ACKNOWLEDGED
ALM : ALARM
BGM : BACKGROUND MUSIC
C : RELAY COMMON CONTACT (WIPER)
CN : CONNECTOR
CPU : COMMON PROCESSOR UNIT
DCV : DIRECT CURRENT VOLTS
EAID : EMERGENCY ALARM INITIATING DEVICE
EARTH: BUILDING EARTH
ECP : EMERGENCY CONTROL PANEL
OIS : OCCUPANT INTERCOMMUNICATION SYSTEM
EOL : END OF LINE
OWIS : OCCUPANT WARNING AND INTERCOMMUNICATION SYSTEM
OWS : OCCUPANT WARNING SYSTEM
FACP : FIRE ALARM CONTROL PANEL
FLT : FAULT
GND : GROUND (0 VOLTS) NOT EARTH
GPO : GENERAL PURPOSE OUTLET
I/O : INPUT/OUTPUT
ISOL : ISOLATED
MAF : MASTER ALARM FACILITY
MCB : MASTER CONTROL BOARD
MCP : MANUAL CALL POINT
MECP : MASTER EMERGENCY CONTROL PANEL
MOV : METAL OXIDE VARISTOR (TRANSIENT PROTECTION)
N/C : NORMALLY CLOSED RELAY CONTACTS
N/O : NORMALLY OPENED RELAY CONTACTS
PA : PUBLIC ADDRESS
PCB : PRINTED CIRCUIT BOARDS
PRIN : PRINTER
P/S : POWER SUPPLY
PSM : POWER SUPPLY MODULE
REM : REMOTE
SECP : SECONDARY EMERGENCY CONTROL PANEL
TB : TERMINAL BLOCK
SGM : SIGNAL GENERATOR MODULE
VDU : VIDEO DISPLAY UNIT
WIP : WARDEN INTERCOM POINT
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