
49 Chapter 5
5.1.2 Jumpers and switch
The motherboard of the PPC-153 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 5.1: Jumpers and their functions
Label Function
JP1 Internal -12 V source selection setting
JP2 LAN power type selection
JP3 Watchdog timer action
JP4 CMOS clear
JP5 COM1/COM2/COM3/COM4 pin 9 output type setting
JP6 COM2 RS-232/422/485 setting
SW1 Panel type setting
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