6.2.2 Connector’s Pin Configurations
No. | SIGNAL NAME | I/O | FUNCTION |
1 | FG |
| Frame Grand |
7 | GND |
| Signal GND |
3 | RD | Input | Receiving data |
20 | DTR | Output | Printer BUSY signal |
2 | TD | Output | Transmission data |
6 | DSR | Input | Data set READY |
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Applicable connector
Printer side :
Cable side :
Cautions : 1. Signal for
2. In case the receiving data is not being transmitted, keep receiving data in mark state.