Mindray cPM 12 - AC;DC Power Board; Power Management Board; Interface Board; Battery Interface Board

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2.5.1 AC/DC Power Board
The AC/DC power board transforms the input AC into DC power, which is the power source for all voltages in the
monitor.
2.5.2 Power Management Board
The power management board mainly performs DC/DC conversion, power management, and transmission of external
connector signals:
 DC/DC conversion: outputs 12 V and 5 V DC power
 Power on/off control
 Charge/Discharge control
 Signal transmission
2.5.3 Interface Board
The interface board supports the USB ports, network ports, multifunctional ports. and VGA ports.
2.5.4 Battery Interface Board
The battery interface board introduces the battery power to the internal system.
2.5.5 Recorder
The recorder receives data from the main board and sends them to the thermal printhead for printing.
2.5.6 Multi-parameter Board
The multi-parameter board provides the following functions:
 Supports 2-channel 3-/5-lead ECG monitoring, and I/II lead Resp monitoring
 Provides power for and communicates with Nellcor/Masimo SpO
2
board
 Supports 2-channel Temp monitoring
 Supports 2-channel IBP monitoring
 Supports NIBP monitoring
 Processes all algorithms and communicates with the main board via UART
 Realizes analog output (four channels, one for ECG, two for IBP, and one for Defib sync output)
 Isolates the parameter modules from earth ground
 Isolates ECG from other parameters