Keyboard & Ps/2 Mouse Connector; External Switches And Indicators - IEI Technology NOVA-8890 User Manual

• COM2 14-pin Connector
PIN
1 DATA CARRIER DETECT (DCD)
2 RECEIVE DATA (RXD)
3 TRANSMIT DATA (TXD)
4 DATA TERMINAL READY (DTR)
5 GROUND
6 RS422/RS485 TX+
7 RS422/RS485 RX+
3.5 Keyboard & PS/2 Mouse Connector
A 6-pin connector is located on the mounting bracket for easy connection to a
keyboard & a PS/2 mouse. The board comes with a cable to convert from the 6-
pin mini-DIN connector to two 6-pin mini-DIN connectors appropriate for
keyboard and mouse connection.
• KB/PS2: 6-pin Mini-DIN Keyboard Connector
PIN
1 +5V
2 MOUSE DATA
3 MOUSE CLOCK
4 KEYBOARD DATA
5 KEYBOARD CLOCK
6 GROUND

3.6 External Switches and Indicators

There are several external switches and indicators available to use for
monitoring and controlling the CPU board. All the functions are in CN3
connector.
• CN3: External Switches and Indicators
Power LED
KEYLOCK
HDD LED
• CN7: 2-pin Header ATX POWER BUTTON Connector
PIN DESCRIPTION
1 BUTTON PIN 1
2 BUTTON PIN 2
DESCRIPTION
DESCRIPTION
PIN DESCRIPTION
1 +5V
3 N/C
5 GND
7 KEYLOCK PIN1
9 KEYLOCK PIN2
11 GND
13 HDD LED+
PIN DESCRIPTION
8 DATA SET READY (DSR)
REQUEST TO SEND (RTS)
9
CLEAR TO SEND (CTS)
10
RING INDICATOR (RI)
11
12 NC
RS422/RS485 TX-
13
RS422/RS485 RX-
14
PIN DESCRIPTION
2 Speaker +
4
6
8 Speaker -
10 Reset PIN1
12 Reset PIN2
14 HDD LED -
19
N/C
Speaker
N/C
Reset
Button
HDD LED