Acrosser AR-B1894 - Manual (Page 13)

2.2
Jumpers & Connectors
JUMPERS FUNCTION REMARK
JP1
RTC CMOS clear select 2 x 1 header
JP4
CPU frequency select 2 x 1 header
CONNECTORS FUNCTION REMARK
AUDIO1
Internal audio for chassis 2 x 5 header
AUDIO2
Audio connector Audio jack x 3
CD1
CD-In from CD-ROM 1 x 4 header
CF1
CompactFlash card connector
CHS_FAN1
Chassis fan connector
CPU_FAN1
CPU fan connector
COM2
Serial port 2 connector 2 x 5 header
DIMM1, DIMM2 240-pin DDR2 SDRAM 1 & 2 socket
DVI1
DVI connector HIROSE
GPIO1
GPIO connector 2 x 5 header
IDE1
Primary IDE connector 2 x 20 header
IR1
IrDA connector 2 x 3 header
KBMS1
PS/2 keyboard & mouse connector
LAN_LED1
LAN LED connector 2 x 6 header
LAN2_LAN3
LAN 2 & LAN 3 connectors
LVDS1
LCD inverter connector
LVDS2
LVDS connector HIROSE
PANEL1
Front side indicators: 2 x 5 header