Know your abbreviations

Here are some abbreviations, it might help for those who working with A320

ABCU - Alternate Brake Control Unit
ABRN - Airborne
ABS - Autobrake System
ABSORB - Absorber
ACARS - Aircraft Communication Addressing and Reporting System
ACCLRM - Accelerometer
ACCU - Accumulator
ACMM - Abbreviated Component Maintenance Manual
ACMS - Aircraft Condition Monitoring System
ACN - Aircraft Classification Number
BCDS - BITE Centralized Data System
BCL - Battery Charge Limiter
BCN - Beacon
BCRU - Battery Charge and Rectifier Unit
BCU - Brake Control Unit
BFO - Beat Freaquency Oscillator
BITE - Built-in Test Equipment
BIU - BITE Interface Unit
BLG - Body Landing Gear
BMC - Bleed Monitoring Computer
CAB - cabin
CAM - Cabin Assignment Module
CAOA - Corrected Angle Of Attack
CAS - Calibrated Air Speed
CBIT - Continous BITE
CBMS - Circuit Breaker Monitoring System
CBMU - Circuit Breaker Monitoring Unit
CC - Current Comparator
CCS - Cabin Communication System
CD - Control Display
CDAM - Centralized Data Acquisition Module
DMPR - Damper
DCD - Data Control and Display
DLK - Data Link
DMU - Data Management Unit
DCDU - Datalink Control and Display Unit
DH - Decision Height
DCDR - Decoder
DEU - Decoder/Encoder Unit
DPI - Differential Pressure Indicator
DAR - Digital AIDS Recorder (Used in single aisle family)
DADC - Digital Air Data Computer
DDM - Digital Data Module
DDRMI - Digital Distance and Radio Magnetic Indicator
DFDAMU - Digital Flight Data Acquisition and Management Unit
DFDAU - Digital Flight Data Acquisition Unit
DRDRS - Digital Flight Data Recording System
EAROM - Electrically Alterable Read Only Memory
EBCU - Emergency Brake Control Unit
EBHA - Electrical Backup Hydraulic Actuator
ECAM - Electronic Centralized Aircraft Monitoring
ECMS - Electrical Contactor Management System
ECMU - Electrical Contactor Management Unit
ECP - ECAM Control Panel
ECS - Environmental Control System
EFCC - Electronic Flight Control Computer
EFCS - Electronic Flight Control System
EFCU - Electronic Flight Control Unit
FAV - Fan Air Valve
FIDS - Fault Isolation and Detection System
FIM - Fault Isolation Manual
FRM - Fault Reporting Manual
FPPU - Feedback Position Pick-off Unit
FDU - Fire Detection Unit
FAC - Flight Augment Computer
GAD - General Assembly Drawing
GEN - Generator
GCR - Generator Control Relay
GLC - Generator Line Contactor
GLR - Generator Line Relay
GAPCU - Ground and Auxiliary Power Control Unit
GPCU - Ground Power Control Unit
GPWC - Ground Proximity Warning Computer
GPWS - Ground Proximity Warning System
HEGS - Hydraulic Electrical Generating System
HFDR - High Frequency Data Radio
HGA - High Gain Antenna
HMC - Hydromechanical Contro
lHPA - High Power Amplifier
HPR - High Power Relay
HRP - Horizontal Reference Plane
HSI - Horizontal Situation Indicator
HSMU - Hydraulic System Monitoring Unit

Source : - flydamnit,pmfaviation