GE M
EDICAL
S
YSTEMS
D
IRECTION
FC091194, R
EVISION
02
V
IVID
7 / V
IVID
7 PRO S
ERVICE
M
ANUAL
5 - 12
Section 5-3 - Front End Processor
5-3-7
Front End Subsystem
The Front End section performs the transmit and receive functions.
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The Front End Controller controls the ultrasound transmitter and receiver synchronization.
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The TX128 board makes the ultrasound transmit pulses.
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The RX128 board is the ultrasound receiver for the ultrasound echoes from blood/tissue.
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The two Beamformer boards digitizes the received ultrasound signal and sends it to the Mid
Processors.
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The Relay board is the interface between the Probes and the Front End.
Figure 5-3 The Front End
RELAY
BOARD
RX128
TX128
Front End
Controller
Probes
Doppler Probe
Digitized received
ultrasound signals to
RFT Board
VME bus
XD BUS
Beam
Former 64
FE BUS