Chapter 2 Hardware Configuration
2-4. COM PORT CONNECTOR
COM1 : COM1 Connector
COM1 is fixed as
The pin assignment is as follows :
PIN | ASSIGNMENT |
1 | DCD1 |
2 | RX1 |
3 | TX1 |
4 | DTR1 |
5 | GND |
6 | DSR1 |
7 | RTS1 |
8 | CTS1 |
9 | RI1 |
10 | NC |
COM2 : COM2 Connector
The COM2 is selectable as
The pin assignment is as follows :
PIN | ASSIGNMENT |
| ||
|
|
| ||
| ||||
1 | DCD2 | TX- | TX- | |
2 | RX2 | TX+ | TX+ | |
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 | |
10 | NC | NC | NC | |
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