19
•
CN17 : 5-pin Header Keyboard Connector
PIN NO.
DESCRIPTION
1 KEYBOARD
CLOCK
2 KEYBOARD
DATA
3 N/C
4 GROUND
5 +5V
3.6
External Switches and Indicators (CN13)
There are several external switches and indicators for
monitoring and controlling your CPU board. All the functions are
in the CN13 connector.
CN13 : External Switches and Indicators
PIN DESCRIPTION
PIN DESCRIPTION
1
+5V 2
Speaker
3
N/C 4 N/C
Power
LED
5
GND 6 N/C
7
KeyLock 8
+5V
Speaker
KeyLock
9
GND 10
Reset
Switch
11
GND 12 GND
Reset
button
13
N/C 14 IDE
LED
15
ATX Power
Control Pin
16 +5V
IDE LED
★
ATX
Signal
17
ATX
5Vsb 18 ATX
Power
Button
19
ATX
5Vsb 20 ATX
5Vsb
ATX
Power
Button
★
For backplanes with ATX Connector (through Power Button
& +5VSB)
20
3.7
USB Port Connector (CN14,CN15)
The ROCKY- 3722EVS has two built-in USB ports for the future
new I/O bus expansion.
CN14 USB0
CN15 USB1
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1
VCC
1
VCC
2
DATA-
2
DATA-
3
DATA+
3 DATA+
4
GROUND
4 GROUND
3.8
IrDA Infrared Interface Port (CN8)
The ROCKY-3722EVS has a built-in IrDA port which supports
Serial Infrared(SIR) or Amplitude Shift Keyed IR(ASKIR)
interface. If you want to use the IrDA port, you have to configure
SIR or ASKIR model in the BIOS under Peripheral Setup COM2.
Then the normal RS-232 COM 2 will be disabled.
•
CN8 : IrDA connector
PIN NO.
DESCRIPTION
1 VCC
2 FIR-RX
3 IR-RX
4 Ground
5 IR-TX
6 CIRRX
3.9
CPU & SYSTEM Fan Connector (CN1, CN2, CN3)
The ROCKY-3722EVS provides two CPU cooling fan
connectors, CN2 and CN3 as well as a chassis fan connector,
CN1. These connectors can supply 12V/500mA to the cooling
fan. All connectors have the same pin assignments and provide
a "rotation" pin to get rotation signals from fans and notice the
system. So the system BIOS can recognize the fan speed.
Please note that only specified fan can issue the rotation signals.
•
CN1/CN2/CN3 : Fan Connector
PIN NO.
DESCRIPTION
