Comen CM1200B - Page 22

Overview
3-9
2) External Input / Output interface:
Warning
 The insulation strength of external input / output interface: is AC 1500V, the maximum DC
voltage at this port is not more than +15V.
Figure 3-6 External input/ output interface
Definition of corresponding pins:
Pin
Signal
Pin
Signal
Pin
Signal
1
ECG signal (input)
4
NC
7
NC
2
RxD (input)
5
GND
8
+12V
3
TxD(output)
6
NC
9
ECG signal（output）
3) USB Connector1/ USBConnector2（Reserved）
Warning
 Two USB connectors can only be connected to the special USB equipment designated by Comen
Company.
(1) (2)
Definition of corresponding pins:
Pin
Signal
Pin
Signal
1
+5V
3
D+
2
D-
4
GND