4-8 Product Principle
magnified, filtered and sampled, are sent to DSC nodule via series port UART. Triggered ECG
signals that are detected are sent to control system for control. Then, it starts scan transmitting.
ECG transducer can be connected externally in this module design, which is also compatible
with other monitoring products manufactured by Mindray.ECG unit structure is shown as below:
Main Board
ECG leads
DC IN
Socket
port
Magnify Filtering
samp
ling
Heart rate
test
Serial port
ECG Board
Pwr
L
T
B
C
L
T
B
C
Figure 4-7 Principle diagram of ECG board
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