I
Serial Interface
Pih | Name | Function |
1 | GND | Printer’s chassis ground. |
2 | TXD | This pin carries data from the printer. |
3 | RXD | This pin carries data to the printer. |
4 | RTS | This pin is always set space. |
|
| This pin is Space when the computer is ready to |
5 | CTS | send data. |
|
| This printer does not check this pin. |
6 | N/C |
|
7 | GND | Signal ground. |
N/C |
| |
|
| This printer turn this pin Space when it is ready |
11 | RCH | to receive data. |
|
| This line carries the same signal as pin 20. |
12N/C
13GND
20DTR
Signal ground.
This printer turns this pin Space when it is ready to receive data.
100
