Jumpers And Connectors - Advantech PCA-6742 Series Startup Manual

Mechanical and Environmental
• Dimensions (L x W): 185 mm x 122 mm
• Power supply voltage: +5 V (4.75 V ~ 5.25 V)
• Power requirements: 1.6 A @ 5 V
• Operating temperature: 0 ~ 60° C (32 ~ 140° F)
• Weight: 0.185 kg ( 0.4 lbs.)

Jumpers and Connectors

Connectors on the board link it to external devices such as
hard disk drives, a keyboard or expansion bus connectors.
In addition, the board has a number of jumpers that allow
you to configure your system to suit your application.
The tables below list the functions of each of the board's
jumpers and connectors:
Jumpers
Label Function
CMOS1 CMOS Clear
JSETCOM2 COM2 function selection
JWDT1 Watchdog timer output selection
JOBS1 HW Monitor Alarm
VGASW1 LCD settings
VGASW2 LCD settings
Connectors
Label Function
JFP1(1-2) HDD LED
JFP1(3-4) Power LED
JFP1(5-6) N/C
JFP1(7-8) Reset switch
JFP1(9-10) N/C
JFP2(1-2) Fail LED
JFP2(3-4) Buzzer Enable
JIR1 IR connector
IDE1 IDE connector (Primary channel)
CF1 CF connector (Secondary channel)
LPT1 Parallel port
USB12 USB port 1,2
USB34 USB port 3,4
COMD1 Serial Port: COM1
COM2 Serial Port: COM2 (RS232/422/485)
COM34 Serial Port COM3/COM4
KBMS1 PS/2 keyboard and mouse connector
KBMS2 External keyboard and mouse con-
nector
2 PCA-6742 Startup Manual
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Front Panel Connectors (JFP1)
Pin Signal
1 HDD LED+
2 HDD LED-
3 Power LED+
4 Power LED-
5 N/C
6 N/C
7 Reset Switch
8 GND
9 5 VSB (Reserved)
10 Power Switch (Reserved)
CMOS1 CMOS Clear
Setting Function
1-2 CMOS Clear
2-3 Normal operation
JSETCOM2 COM2 Function Selection
RS232 RS422
JWDT1 Watchdog Timer Output Selection
Setting Function
1-2 IRQ11
2-3 System reset
JOBS1 HW Monitor Alarm
Setting Function
1-2 Closed Enable OBS alarm
1-2 Open Disable OBS alarm
1 2 3
1 2 3
RS485
1 2 3
1 2 3
1 2
1 2