●Serial interface
Pin No. | Signal | Direction | Function | |
Name | ||||
|
|
| ||
1 | GND | — | Chassisground. | |
2 | TXD | OUT | Carriesdatafromtheprinter. | |
3 | RXD | IN | Carriesdata to the printer. | |
4 | RTS | OUT | Onwhenthe printeris readyto | |
| N/C |
| reeeivedata. | |
| Unused. | |||
7 | GND | — | Signalground. | |
N/C |
| Unused. | ||
20 | DTR | OUT | Onwhenthe printeris readyto | |
N/C |
| receivedata. | ||
| Unuswl. |
110
