Serial (Printer). Computer Port (Connector)
Serial (Printer)
(25 PIN D-SUB Male ที่พริ้นเตอร์)
| Pin | Name | Dir | Description |
|---|---|---|---|
| 1 | SHIELD | Shield Ground | |
| 2 | TXD |
 |
Transmit Data |
| 3 | RXD |
 |
Receive Data |
| 4 | N/C | Not connected | |
| 5 | N/C | Not connected | |
| 6 | DSR |
|
Data Set Ready |
| 7 | GND | System Ground | |
| 8 | DCD |
|
Data Carrier Detect |
| 9 | N/C | Not connected | |
| 10 | N/C | Not connected | |
| 11 | ? |
|
Reverse Channel |
| 12 | N/C | Not connected | |
| 13 | N/C | Not connected | |
| 14 | N/C | Not connected | |
| 15 | N/C | Not connected | |
| 16 | N/C | Not connected | |
| 17 | TTY-TXD |
|
TTY Receive Data |
| 18 | N/C | Not connected | |
| 19 | N/C | Not connected | |
| 20 | DTR |
|
Data Terminal Ready |
| 21 | N/C | Not connected | |
| 22 | N/C | Not connected | |
| 23 | ? |
|
TTY Receive Data Return |
| 24 | ? |
|
TTY Transmit Data Return |
| 25 | TTY-RXD |
|
TTY Receive Data |