IEI Technology NOVA-8890, Руководство пользователя

Страница: 19 / 49

19
• COM2 14-pin Connector
PIN DESCRIPTION PIN DESCRIPTION
1 DATA CARRIER DETECT (DCD) 8 DATA SET READY (DSR)
2 RECEIVE DATA (RXD)
9
REQUEST TO SEND (RTS)
3 TRANSMIT DATA (TXD)
10
CLEAR TO SEND (CTS)
4 DATA TERMINAL READY (DTR)
11
RING INDICATOR (RI)
5 GROUND
12 NC
6 RS422/RS485 TX+
13
RS422/RS485 TX-
7 RS422/RS485 RX+
14
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 DESCRIPTION
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
PIN DESCRIPTION PIN DESCRIPTION
1 +5V 2 Speaker +
3 N/C 4 N/C
Power LED
5 GND 6 N/C
7 KEYLOCK PIN1 8 Speaker -
Speaker
KEYLOCK
9 KEYLOCK PIN2 10 Reset PIN1
11 GND 12 Reset PIN2
Reset
Button
HDD LED 13 HDD LED+ 14 HDD LED - HDD LED
• CN7: 2-pin Header ATX POWER BUTTON Connector
PIN DESCRIPTION
1 BUTTON PIN 1
2 BUTTON PIN 2