ECS C7VCM2, Manual, Page: 25 / 56

19
Installing the Motherboard
Connecting Optional Devices
Refer to the following for information on connecting the motherboard’s optional devices:
IR1: Infrared header
COM2: Onboard serial port header
Connect a serial port extension bracket to this header to add a second serial port to your
system.
1
NDCDC/NDCDD Data Carrier Detect
2
NSINC/NSIND Serial Input
3
NSOUTC/NSOUTD UART B Serial Output
4
NDTRC/NDTRD UART B Data Terminal Ready
5
Ground Ground
6
NDSRC/NDSRD Data Set Ready
7
NRTSC/NRTSD RART B Request to Send
8
NCTSC/NCTSD Clear to Send
9
XNRI3/XNRI4 Ring Indicator
10
Key No pin
Not assigned
2
Key
No pin
Pin Signal Name Function
3
+5V IR Power
4
GND
Ground
1
Not Assigned
5
IR_TX IrDA serial output
6
IR_RX IrDA serial input
Pin Signal Name Function