Components and Functions (Theory)
5-28
Invenia ABUS 2.0 – System Setup and Basic Service Manual
4700-0043-00 Rev. 4
Glossary
AAF
Anti Aliasing Filter
This is used to clean signals.
ADC
Analog to Digital Converter
Converts signals that are analog voltages
into digitally coded values
AFE
Analog Front End
Analog signal handling circuit. A custom
component in the ABUS 2.0 system.
BEP
Back End Processor
An alternate name for the PC in the
ABUS 2.0 system.
MFEPS
Front end power supply
Board that powers the Scan Head
DSP
Digital signal processor
The Texas Instrument DSP,
TMS320C6455 on the CMST board.
FE
Front End
Components of the system that are
functionally nearest the Scan Head are
referred to as front end components.
GPU
Graphics Processing Unit
A PC board dedicated to graphics
processing
LNA
Low Noise amplifier
An amplifier designed so that it does not
introduce much noise into low-level
signals
MCI
Motor Control Interface
The MCI board in the Ultrasound Box
relays control commands originating at
the PC for the Scan Head and Weight
Tower motors.
MPSB
MPSB relay board
Relay board switches the 128
channel-signals between handheld and
ABUS 2.0 port transducer. (Handheld not
used at present - future option)
PACS
PC Box
Personal Computer Box
This module contains the PC
motherboard and related components
PGA
Programmable Gain Amplifier
An amplifier whose gain can digitally
controlled
VCAT
Voltage Controlled Attenuator
A voltage divider whose ratio for dividing
down the input can be set electronically
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