4-2 TM80 Telemetry Monitor Service Manual 
 
The parameter front-end exchanges data and information with the main control 
processor and the two work collaboratively. The parameter front-end exchanges 
data and control command with the main control processor through serial port. The 
parameter front-end transmits parameter data, information about keys and 
technical alarm information to the main control processor and the main control 
processor delivers data to the parameter front-end through serial port.   
 
Based on the preceding description, the block diagram of system function 
deployment can be drawn: 
 
The following figure shows logical connections of the system: 
ECG-
ASIC
ECG defibrillation 
proof circuit 
Lead 3/5/6
Parameter front-
end processor 
Bluetooth 
Pace detection
UART
Self-made 
&OEM SpO2 
module
Main control 
processor 
3.5"  LCD
480*320
Nurse calling key
Menu key
Touch screen
Upgrade interface 
Power On/Off key
Speaker
Three-
color 
indicator 
Power switch 
and voltage 
monitoring
wifi
Battery 
manag
ement
PMU 
control