GE Vivid 7, Руководство по обслуживанию

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GE H
EALTHCARE
D
IRECTION
FC091194, R
EVISION
11 V
IVID
7 S
ERVICE
M
ANUAL
5 - 46 Section 5-3 - a Front-End Processor (FEP)
5-3-17-2 Location in the Unit
• Color Flow Processing is done by software on the Back-End Processor.
• Tissue processing and Doppler processing are done by the cards listed in Table 5-35 on page 5-46 .
5-3-17-3 Input Signals
• Digitized ultrasound signals from the Beam Formers
• S-Video/C-Video replay from VCR (via Internal I/O)
5-3-17-4 Bi-directional Signals
5-3-17-4-1 PC2IP Bus
Digital Control Signals and Parameters between Image Port and BEP, via PC2IP bus
5-3-17-4-2 VME Bus
The VME data bus is used for data communication between the following cards: FEC, RFT, SDP and
IMP.
5-3-17-4-3 PipeLink Bus
The PipeLink bus is an unidirectional data bus, transporting data from the PipeLink dispatcher (RF &
Tissue Processor) through the accessed processor(s) to the destination, the Image Port.
Data leaving the RF & Tissue Processor has a tag indicating what type of data that is transported; e.g.
2D Tissue, Doppler or 2D Flow. The receiver for the data will decode this tag and if it matches the
processor’s own address, the data will be processed.
Data that doesn’t have a matching tag, is passed on to the next processor.
The Image Port will then map the data into the on-board Image Memory.
5-3-17-5 Output Signals
• Color Flow Data, from RFT via Image Port to BEP
• Digital video data via PC2IP bus, from Image Port to BEP
• Doppler audio sound, from SDP to Internal I/O
5-3-17-6 Power Distribution
Via Backplane, see description for each card.
5-3-17-7 Fuses, Jumpers, Dip-switches and LEDs
See description for each card.
Table 5-35 Digital Signal Processor boards located in the Front-End Rack
SHORT NAME MODULE NAME COMMENTS
RFT
RADIO FREQUENCY & TISSUE PROCESSOR FEP1
SDP
SPECTRUM DOPPLER PROCESSOR FEP1
IMP
IMAGE PORT
FEP1
RFI
RADIO FREQUENCY INTERFACE
FEP2