D
IRECTION
5771498-100, R
EVISION
5
V
ENUE
™ S
ERVICE
M
ANUAL
Chapter 5 - Venue™Components and Function (Theory)
5-19
P R E L I M I N A R Y
5-8-2
Front End Interfaces
The Front End is connected to the Back End via the following Interfaces:
A High Speed Data and Control Cable that comprises:
•
PCI-e channel for Setup and communication between the BEP and the DSP located on the T-
CFE Module via the PCI Bridge.
•
PCI-e channel for Acquired Data Transfer between T-CFE and BEP.
•
Control Signals between the BEP and T-CFE for power management and Status Monitoring.
•
Power Cable connected between the MPB to the Front End Power Supply (T-FEPS).
The Front End Modules are connected via the following Interfaces:
•
The four TRX32 Modules are connected to the T-CFE via DIMM connectors located on the
T-CFE Module.
•
Communication between the T-CFE and the TRX32 modules is done via LVDS channels and
control signals.
•
The 128 Transmit and Receive System channels from the 4xTRX32 modules are routed to the
PSB via the T-CFE Module.
•
The PSB is connected to the T-CFE via 3 connectors
The Interface between the T-CFE and the PSB modules consists of the following:
•
Dedicated I2C channel for Board ID (VPD)
•
Control Signals
•
I2C channel for Probe ID Reading and PSB Debug Information.
•
LVDS channels for Matrix Probe Setup and Status Reading
•
PSB DC Supply
•
Probe Low Voltage and High Voltage Supply
5-8-3
Signal Flow
The TRX32 Boards in the Front End transmit pulses, routed through the Probe Selection Board (PSB)
to ultrasound probes.
Ultrasound echoes returned from a body structure are received by the probes and routed via the
PSB Board to the TRX32 boards. The TRX32 boards amplify these signals. Then the signals are
A/D converted. The digitized signal is transferred via the PCIe 8x Bus to the Back End Processor for
software beamforming and further signal processing.
The Back End Processor receives input commands from the User Interface (Operator Panel), handles
the communication with the rest of the system, and delivers signals (digital video) to the LCD screen
and the Touch Screen. It also provides output to an optional, internal printer. The communication to the
network (Ethernet) is also handled by the Back End Processor.
Summary of Contents for Venue R1
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