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COM 3 Jumper Setting
Remove the 4 screws of the heat shield and put them in a safe place for later use.
Remove the heat shield and the COM 3 jumper is readily accessible.
JP9
Pin
Assignment
1-2
4-5
RS232 (default)
7-8
10-11
JP8
Pin
Assignment
1-2
4-5
RS232 (default)
7-8
10-11
Heat shield
Pin
Assignment
2-3
5-6
DIO
8-9
11-12
Pin
Assignment
2-3
5-6
DIO
8-9
11-12
1
3
12
10
3
1
12
10
7
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