Chapter 2 Hardware Configuration
2-16. COM PORT CONNECTOR
There are four COM ports enhanced in this board namely: COM1, COM2, COM3 and COM4. COM1, COM3 and COM4 are fixed for
COM1 : COM1 Connector
The COM1 Connector assignments are as follows :
PIN ASSIGNMENT
1DCD1
2RX1
3TX1
4DTR1
5GND
6DSR1
7RTS1
8CTS1
9RI1
COM1
COM2 : COM2 Connector
The COM2 Connector assignments are as follows :
PIN | ASSIGNMENT |
|
| |
|
|
|
|
|
1 | DCD2 | TX- | TX- |
|
2 | RX2 | TX+ | TX+ | COM2 |
3 | TX2 | RX+ | RX+ | |
4 | DTR2 | RX- | RX- |
|
5 | GND | GND | GND |
|
6 | DSR2 | RTS- | NC |
|
7 | RTS2 | RTS+ | NC |
|
8 | CTS2 | CTS+ | NC |
|
9 | RI2 | CTS- | NC |
|
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