Распайка COM и PS/2 портов компъютера
COM - порт
| Рисунок | Контакт | Сигнал |
 |
1 | DCD (Data Carry Correct) |
| 2 | SIN (Serial In or Receive Data) | |
| 3 | SOUT (Serial Out or Transmit Data) | |
| 4 | DTR (Data Terminal Ready) | |
| 5 | GND | |
| 6 | DSR (Data Set Ready) | |
| 7 | RTS (Request To Send) | |
| 8 | CTS (Clear To Send) | |
| 9 | RI (Ring Indicate) |
Распайка кабелей
COM-25 - COM-9
COM-25 - COM-25
COM-25 - COM-9
COM-25 - COM-25
| COM-25 | COM-9 | COM-25 | COM-25 | |
| 2 | 3 | 2 | 2 | |
| 3 | 2 | 3 | 3 | |
| 4 | 7 | 4 | 4 | |
| 5 | 8 | 5 | 5 | |
| 6 | 6 | 6 | 6 | |
| 7 | 5 | 7 | 7 | |
| 8 | 1 | 8 | 8 | |
| 20 | 4 | 20 | 20 | |
| 22 | 9 | 22 | 22 |
PS/2 - порт
| Рисунок | Контакт | Сигнал |
 |
1 | Mouse Data |
| 2 | Not Connect | |
| 3 | GND | |
| 4 | VCC | |
| 5 | Mouse Clock |
