Advantech PPC-S123 manual Jumpers and switch, Label Function

4.1.2 Jumpers and switch

The motherboard of the PPC-S123 has a number of jumpers that allow you to configure your system to suit your applications. The table below lists the function of each of the board’s jumpers.

Table 4-1: Jumpers and their functions

Label	Function
JP2	COM2 RS-232/422/485 setting
JP3	COM2 RS-232/422/485 setting
JP4	COM2 RS-232/422/485 setting
JP5	COM3 / COM4 Pin 9 output type setting
JP6	Watchdog timer configuration
JP7	CMOS clear for external RTC

Chapter 4 Jumper Settings and Connectors 31