PCM-9587 User Manual 6
2.1 Jumpers
The PCM-9587 has a number of jumpers that allow you to configure your system to
suit your application. The table below lists the functions of the various jumpers.

2.1.1 Jumpers setting drawing

Table 2.1: Jumpers

Label Function
J1 LCD Voltage Select
J2 PC104+ VIO Select
J3 Clear CMOS function Select
J5 COM2 RS232/422/485 function Select

Table 2.2: J1: LCD Voltage Select

PIN FUNCTION
1-2 +3.3 V*
2-3 +5 V

Table 2.3: J2: PC104+ VIO Select

PIN FUNCTION
1-2 VIO = +5 V *
2-3 VIO = +3.3 V

Table 2.4: J3: Clear CMOS function Select

PIN FUNCTION
1-2 Open Normal*
1-2 Close Clear CMOS
123
123
123
123
12