Equipment overview: Theory of operation
2000966-542D Dash 3000/4000/5000 2-17
Theory of operation
Components
The patient monitor is housed in a single package. The main components 
of the assembly are:
 Power supply
 Data Acquisition System
 Processor and power management subsystem (including battery case 
and expansion port)
 Speaker
 Handle subassembly (including the Alarm Light option)
 Thermal printer (optional)
 Battery
Overall patient monitor block diagram
NBP
Flex
DAS Board
Patient
Connector
Flex
Patient
Connections
DAS Module
Display
Keypad
Backlight
Inverter
Display Subassembly
Display Flex
Processor Board
Power
Supply
Board
Battery
Battery
Peripheral
Expansion
Connector
 Processor/Power Management Subassembly
Wireless 
Card
Alarm Light
Writer
Speaker
Writer Flex
AC Mains Power
Ethernet
Aux
Defib Sync