Jumpers And Connectors; Table 1.1: Jumper List; Table 1.2: Connectors - Advantech AIMB-781 User Manual

1.4

Jumpers and Connectors

Connectors on the AIMB-781 motherboard link it to external devices such as hard
disk drives and a keyboard. In addition, the board has a number of jumpers that are
used to configure your system for your application.
The tables below list the function of each of the jumpers and connectors. Later sec-
tions in this chapter give instructions on setting jumpers. Chapter 2 gives instructions
for connecting external devices to your motherboard.

Table 1.1: Jumper list

Label
JCMOS1
JWDT1
PSON1
JSETCOM3

Table 1.2: Connectors

Label
LPT1
LAN1_USB12
LAN2_USB34
VGA1
DVI1
COM 1~2 and 4~6
COM3
KBMS1
KBMS2
JIR1
JFP3
JFP2
JFP1
JCASE1
VOLT1
JOBS1
CPUFAN1
SYSFAN1
SYSFAN2
LANLED1
AUDIO1
FPAUO1
USB56
Function
CMOS Clear
Watchdog reset
AT(1-2) / ATX(2-3)
COM3 RS-232/422/485 Jumper Setting
Function
Parallel port, supports SPP/EPP/ECP mode
LAN1 / USB port 1, 2
LAN2 / USB port 3, 4
VGA connector
DVI-D connector
Serial port: RS-232
Serial port: RS-232/422/485 (9-pin connector)
PS/2 keyboard and mouse connector
External keyboard connector (6-pin)
Infrared connector
Keyboard lock and power LED
Suspend: fast flash (ATX/AT)
System On: on (ATX/AT)
System Off: off (AT)
System Off: slow flash (ATX)
External speaker / HDD LED connector / SM Bus connector
Power switch / reset connector
Case open
Voltage display
HW monitor
Close: enable OBS alarm
Open: disable OBS alarm
CPU fan connector (4-pin)
System fan connector (3-pin)
System fan connector (3-pin)
LAN1/2 LED extension connector
Audio connector
HD audio front panel pin header
USB port 5, 6
5 AIMB-781 User Manual