
23 Chapter 4
4.1.2 Jumpers and switch
The motherboard of the PPC-L126 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.
4.1.3 Locating jumpers and switches
Table 4.1: Jumpers and their functions
Label Function
J1 LAN power type select
J2 COM2 RS-232/422/485 setting
J3 COM1/COM2/COM3/COM4 Pin 9 output type setting
J4 Watchdog timer configuration
J5 CMOS clear for external RTC
SW2 Panel type setting (Reserved)
Figure 4.1: Jumpers on the PPC-L126 motherboard
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