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 |
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 |
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