User manual

Table Of Contents
ARK-3399 User Manual 10
2.2.4 Jumper Settings
1. CMOS Jumper ( J1 )
ARK-3399 series of embedded box computer provide a jumper - J1 located on the
internal board for selecting the CMOS of Clear or Normal status.
Close pins Function
1-2 Normal*
2-3 Clear
(*): means default setting of the jumper/function.
2. LVDS Voltage Selector Jumper ( J2 )
ARK-3399 series of embedded box computer provide a jumper - J2 located on the
internal board for selecting the LVDS Voltage to output 5V or 3.3V.
Close pins Function
1-2 5 V
2-3 3.3 V*
(*): means default setting of the jumper/function.
3. COM2 Jumper (J3)
ARK-3399 series of embedded box computer provide a jumper - J3 located on the
internal board for COM2 selecting the RS-232,RS422 and RS485.
Close pins Function
1-2 RS-232*
3-4 RS-485
5-6 RS-422
(*): means default setting of the jumper/function.