R Series Service Manual
5-2 9650-0903-01 Rev. L
Parameter Power Supply (SpO
2
, EtCO
2
, NIBP)
The parameter power supply board provides power and communications for the Masimo SpO
2
module, the EtCO
2
Capnostat 5 sensor, and the Suntech
Advantage A+ NIBP module. SpO
2
and EtCO
2
power and communications are isolated from the system to meet the requirements for applied parts in
EN60601-1, EN60601-2-4 and EN60601-2-49. NIBP isolation requirements are met by the applied parts themselves; the cuffs and tubing are non-
conductive.
A barometric pressure sensor is included for EtCO
2
monitoring. In addition, a hardware R wave trigger is routed from the digital system board to the NIBP
module.
Digital System Board
The R Series Digital System Board is the main control unit of the R Series defibrillator. The digital system includes these major blocks:
• System Processor: SH3-DSP SH7229
• FLASH memory for program boot
• SDRAM for program and data storage
• USB Device and Host interfaces
• One compact flash interface
• Disk-On-Chip for non-removable data storage
• Display Controller: 8M RAM, LCD and VGA outputs
• CPLD for system control
• FPGA for I/O control and serial I/O
• CODEC for audio input (microphone: future) and output (speaker)
• ECG Out
• RS232 (internal use only)
• Beeper driver
• Strip Chart Printer controller and drivers
• Real time clock / calendar with precision crystal and battery
• Safety functions including watchdog, power monitors and reset control.
The digital system board controls and/or communicates with external functional modules and real time peripherals including the core P/D Engine, core
ECG, parameters (SpO
2
, EtCO
2
and NIBP), CPR, AC charger, battery, and controls board.
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