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3301770
JP2: COM2 Serial Port Operation Mode Selector
This jumper block allows you to select an operation mode for the COM2 serial port (Default:
1-3).
Table 3-2 JP2 Pinouts
PIN
COMBINATION
DESCRIPTION
1-2 RS-232
3-4 RS-422
5-6 RS-485
JP3: COM2 Signal Selector
Table 3-3 JP3 COM2 Signal Selector
COM1 Pin-9 Signal Selection COM2 Pin-8 Signal Selection
PIN
COMBINATION
DESCRIPTION
PIN
COMBINATION
DESCRIPTION
1-3 12V 2-4 12V
3-5 5V 4-6 5V
5-7 5V 6-8 5V
7-9 RI1 8-10 RI2
Figure 3-4 JP3 Pin Locations
3-7