4115T Light Duty Industrial PC Chapter 3 – POS-478 CPU Control Board and BIOS Setup
18 143926(A)
COM Port RI and Voltage Selection
JP7, JP9: Set pin 9 of COM1 as signal RI or voltage source
JP9 Description
2-3
COM1 RI PIN Use RI
1-2
COM1 RI PIN Use Voltage
JP7 Description
2-3
COM1 RI PIN Use V12V
1-2
COM1 RI PIN Use V5V
*The use of JP7 (2-3) or (1-2) will not make any difference when JP9 (2-3) is in use.
JP6, JP8: Set pin 9 of COM2 as signal RI or voltage source
JP8 Description
2-3
COM2 RI PIN Use RI
1-2
COM2 RI PIN Use Voltage
JP6 Description
2-3
COM2 RI PIN Use V12V
1-2
COM2 RI PIN Use V5V
*The use of JP6 (2-3) or (1-2) will not make any difference when JP8 (2-3) is in use.
JP13, JP15: Set pin 9 of COM3 as signal RI or voltage source
JP15 Description
2-3
COM3 RI PIN Use RI
1-2
COM3 RI PIN Use Voltage
JP13 Description
2-3
COM3 RI PIN Use V12V
1-2
COM3 RI PIN Use V5V
*The use of JP13 (2-3) or (1-2) will not make any difference when JP15 (2-3) is in use.
