Com2 Port Rs232/422/485 Selection (Jp10, Jp20); Com Port Ri And Voltage Selection; Table 3-3: Clear Cmos Jumper Settings; Table 3-4: Com2 Port Jumper Settings - Acnodes PC 5150 User Manual

Load Optimal Defaults
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After one of the above has been done, save the changes and exit the CMOS Setup menu.
JP1 DESCRIPTION
1-2 closed Normal (Default)
2-3 closed Clear CMOS

Table 3-3: Clear CMOS Jumper Settings

3.5.4 COM2 Port RS232/422/485 Selection (JP10, JP20)

The COM Port jumper configures the COM2 serial port.
JP10
1-2,4-5,7-8,10-11 closed
2-3,5-6,8-9,11-12 closed
2-3,5-6,8-9,11-12 closed

Table 3-4: COM2 Port Jumper Settings

3.5.5 COM port RI and Voltage Selection

Use JP7 and JP9 to set pin 9 of COM1 as signal RI or voltage source.
JP9 DESCRIPTION
2-3 closed COM1 RI PIN Use RI
1-2 closed COM1 RI PIN Use Voltage

Table 3-5: COM1 RI and Voltage Selection Jumper

JP7 DESCRIPTION
2-3 closed COM1 RI PIN Use Voltage +12V
1-2 closed COM1 RI PIN Use Voltage +5V

Table 3-6: COM1 RI Voltage Selection Jumper

PC 5150 Flat Panel PC
JP20 DESCRIPTION
1-3 closed RS232 (default)
3-5, 2-4 closed RS422
3-5, 4-6 closed RS485
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