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CD952 Series: Isolated 4-bit Digital I/O Jumper Setting
COM2/DIO Select
JP9/JP10
The system board uses JP9 and JP10 to select between RS232/422/485 COM2 or isolated 4-bit
DIO at the rear panel.
Note:
You cannot use COM2 and DIO at the same time. Please set up JP9 and JP10 at the
same time.
Appendix E Digital I/O User Guide
Appendix E
12
10
9
7
6
4
COM port mode
3
1
1-4-7-10, 2-5-8-11
On: COM2 (default)
12
10
9
7
6
4
DIO mode
3
1
2-5-8-11, 3-6-9-12
On: DIO
CD952 Series: Isolated 4-bit Digital I/O Pin Define
COM2 (Serial) Port/ Isolated 4-bit DIO
69
RS232/422/485 COM2
or Isolated 4-bit DIO
2
4
1
3
5
7
9
6
8
Pins
DIO Function
1
DIN0A
2
DIN0B
DIN1A
3
DIN1B
4
GND
5
6
DOUT0A
7
DOUT0B
DOUT1A
8
DOUT1B
9
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