INSTALLATIONS
12 MAT-880 User’s Manual
JP9: COM2 RS232 +5V / +12V Power Setting
Pin # Signal Name JP9 Signal Name Pin #
1 RI +12V 2
3 RI (default) RI (default) 4
5 RI
+5V 6
COM2 Settings: Pin 1-2 short = +12V, Pin 5-6 short = +5V,
Pin 3-4 short = standard COM port
JP10: COM3 RS232 +5V / +12V Power Setting
Pin # Signal Name JP10 Signal Name Pin #
1 RI +12V 2
3 RI (default) RI (default) 4
5 RI
+5V 6
COM3 Settings: Pin 1-2 short = +12V, Pin 5-6 short = +5V,
Pin 3-4 short = standard COM port
JP11: COM4 RS232 +5V / +12V Power Setting
Pin # Signal Name JP11 Signal Name Pin #
1 RI +12V 2
3 RI (default) RI (default) 4
5 RI
+5V 6
COM4 Settings: Pin 1-2 short = +12V, Pin 5-6 short = +5V,
Pin 3-4 short = standard COM port
JP12: ATX / AT Power Select
JP12 ATX / AT
ATX
AT