Advantech AIMB-218 Startup Manual page 3

Jumpers and Connectors (Cont.)
COM1 RI# pin RI#/5V/12V selection (JSETCOM1_V1)
Function
Jumper position for RI#
(Default)
Jumper position for +5V
Jumper position for +12V
Signal Pin
Pin
Definition
1 RI# [1]
3 Advantech define
5 +12V
COM2 RS232/485 selection jumber (JSETCOM2)
Function
(Default RS-232)
Signal Pin
Pin
Definition
1 UART2_SIN
3 UART2_SIN
5 UART2_SIN
7 DCDB SOUTB
9 #COM2_DCD
11 COM2_TXD485N
13 SINB
15 COM2_SIN
17 COM2_TXD485P
Setting
Signal Pin
Pin
Definition
2 Advantech define
4 +5V
6 Advantech define
Setting
Signal Pin
Pin
Definition
2 RXD485_2
4 RXD422_2
6 RXD232_2
8 SOUTB
10 COM2_SOUT
12 COM2_RXD485P
14 DTRB
16 #COM2_DTR
18 COM2_RXD485N
Jumpers and Connectors (Cont.)
Power switch/HDD LED/SMBus/Speaker pin header
(JFP1)
Function
JFP1(7-10) (Default)
Watchdog timer output and OBS beep
(JWDT1+JOBS1)
Function
Watchdog Timer Out-
put(2-3) (Default)
OBS BEEP(4-5) (Default)
Watchdog Timer Dis-
able(1-2)
OBS BEEP(4-5) (Default)
CMOS Clear Jumper (JCMOS1)
Function
Keep COMS Data
(Default)
Clear CMOS Data
Pin
1
3
5
AT/ATX Mode selection (PSON1)
Function
AT Mode
ATX Mode (Default)
AIMB-218 Startup Manual 3
Setting
Setting
1 2 3 4 5
1 2 3 4 5
Setting
1 2 3
1 2 3
Signal Pin Definition
VBAT
RTC RESET#
GND
Setting
1 2 3
1 2 3