Mindray iPM-9800 - Power Management and Interface Board; Main Board; Recorder Board; CF Board

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2.3.3 Power management and interface board
This board is responsible for power management and interfaces.
Power management can perform the functions below:
1. Outputting 12V, 5V, and 3.3V DC power
2. Power On/Off control
3. Charge/Discharge control
The interface part has a USB HUB and supports two USB ports, networks, RS232, and such
signal output as VGA signals and analog signals.
2.3.4 Main board
The main board includes the CPU, FPGA, FLASH, DDR-SDRAM, network controller, etc.
FPGA deals with displaying, sound and interface.
2.3.5 Recorder board
The recorder board consists of the CPU, drive circuit, feedback circuit and print head. It
communicates with the main board through the UART.
2.3.6 CF board
The CF board functions by employing the USB-to-CF chip.
2.3.7 Wireless access point
The wireless access point enable the patient monitor to go wireless.
2.3.8 Key board
The key board consists of the Power button, keyboard scanning circuit, and AC/battery
indicators.
2.3.9 Touchscreen board
The touchscreen board controls the touchscreen and passes the control signals to the main
board.
2.3.10 Alarm LED board
The alarm LED board consists of the red LED and yellow LED.