Fetal Monitor Module - EDAN F9 Service Manual

F9 Fetal & maternal Monitor Service Manual
EMS Memory
Serial Port
Headphone Interface
Touch Screen Interface
USB
VGA
LCD
Keyboard
GPIO
Watchdog Timer
Power Consumption
Size
Operating System

7.2.2 Fetal Monitor Module

The main function of the fetal monitor module is to detect FHR, AFM and TOCO, a new function
of collecting and playing back audio signals is added. Refer figure 7-3 for its system structure
block diagram, power, simulating front circuit, ADC, audio processing circuit and digital circuit
are included. Signal detecting is divided into three branches: two fetal hearts and fetal movements
detecting and a TOCO (pressure on the pregnant woman's abdomen) detecting.
SDRAM: 64M byte
Flash: program 8M bytes + data 64M bytes
Configure in 5 serial ports and 9 serial ports way
Loudspeaker output
1 interface.
1 standard USB HOST interface, 1 standard DEVICE interface (1.1
specification)
1 VGA output port, standard VGA outputting
1 TFT LCD interface, 1024*768 (highest resolution)
1 PS/2 keyboard interface
At least 10
1.6s
700mA @ +5V (max)
142 mm×105 mm
Linux
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Principle Introduction