User manual

11 ARK-6320 User Manual
Chapter 3 Motherboard Overview
3.2 Jumpers and Connectors
Connectors on the motherboard link it to devices such as hard disk drives and a key-
board. In addition, the board has a number of jumpers used to configure your system
for your application.
The tables below list the function of each jumper and connector. Later sections in this
chapter give instructions on setting jumpers.
Table 3.1: Jumpers
Label Function
JFP1 Power LED and Keyboard lock
JFP1+JFP2 Power switch/HDD LED/SMBus/Speaker
CMOS1 CMOS clear (Default 1-2)
J1 LVDS1 LCD power 3.3V/5V selection, Default (1-2, 3.3 V)
PSON1 AT(1-2) / ATX(2-3), (Default 2-3)
JSETCOM2 COM2 RS232/422/485 Jumper Setting
JWDT1 Watchdog Reset
JOBS1 OBS Alarm
Table 3.2: Connectors
Label Function
USB5,6 USB port 5, 6 (on board)
USB7,8 USB port 7, 8 (on board)
VGA1 VGA connector
COM1,COM2
Serial port: COM1 (RS232) and COM2 (RS232, RS422 and
RS485)
COM3 Serial port: COM3 (RS232)
KBMS1 Internal PS/2 Keyboard and Mouse connector
CPUFAN1 CPU FAN connector(3-pin)
SYSFAN1 System FAN connector(3-pin)
LAN1, USB1,2 LAN1 / USB port 1, 2
LAN2, USB3,4 LAN2 / USB port 3, 4
AUDIO1 Audio connector
HD1 HD Audio Front Panel Pin Header
SATA1 Serial ATA data connector 1
SATA_PWR_CN2 Serial ATA power connector 2
DIMMA1 Memory connector channel.
SPI_CN1 SPI flash update connector.
MINIPCIE2 Mini PCI express connector
ATX12V ATX 12 V connector