User`s manual
Chapter 2 Hardware Configuration 
Page: 2-2 
Prox-1750 USER'S MANUAL 
2-1. JUMPER & CONNECTOR QUICK REFERENCE TABLE 
COM Connector ….................................……...........
 ………………………………..…..
JCOM1, COM2 
COM3, COM4 
RS232/422/485 (COM2) Selection ......................…. JP3 
COM1 & COM2 RI & Voltage Selection …………. JP4 
COM3 & COM4 RI & Voltage Selection …………. JP1 
Keyboard & PS/2 Mouse Connector ………………. JKBMS1 
Reset Connector  ...................................................…. JPANEL1 
(13, 15) 
External Speaker Connector ……….………………. JPANEL1 
(1, 3, 5, 7) 
Hard Disk Drive LED Connector ........................….. JPANEL1 
(9, 11) 
Power LED Connector  ….................……………….. JPANEL1 
(8, 10, 12) 
EXTSMI# Connector  ….................………………… JPANEL1 
(2, 4) 
ATX Power Button …………..…………………….. JPANEL1 
(14, 16) 
KEYLOCK …………………………………………. JPANEL1 
(17, 18) 
IRDA Connector …………………………………… IRDA1 
Printer Connector .................................................…. JPRNT1 
ATX Power Connector …………………………….. JATXPWR1, JATXPWR2 
Clear CMOS Data Selection ……………………….. JCMOS1 
VGA Connector ..........................................………... JVGA1 
USB & LAN Connector ...........................…………..
Front USB Connector ...........................….………..
JRJ45USB1, JRJ45USB2 
JUSB3, JUSB2 (Optional) 
USB Power Setting ………………………………….
 …………………………………
JUSBV1, JUSBV2, 
JUSBV3 
LAN2 Enable/Disable Selection ….………………... JP6 
Wake-On-Modem Connector ………………………. WOL1 (JWOL1) 
CPU Fan Connector .............................................….. JCFAN1 
System Fan Connector ……………………………… JSFAN1, JSFAN2 
Reset/NMI/Clear Watchdog Selection ……………….. JP2 
Hard Disk Drive Connector .................................….. IDE1, IDE2 
Floppy Disk Drive Connector ..............................….. FDD1 
Sound Connector ..………………………………….. JAUDIO1 
CD Audio-In Connector ….………………………… JCDIN1, JCDIN2 
Memory Installation .............................................…..
DDR1, DDR2 
PPCI Connector ……………………………………..
PPCI 
P4/P4-M CPU Selection …………………………….
JP11 
EPPCI IRQ Selection ……………………………….
JP10 
Reserved Pin ………………………………………...
JP5,JP7 










