Chapter 5 RS-232 And RS-422 Serial Interfaces
Clear To Send (CTS). Status signal to the printer indicating the host is ready to receive data/status signals from the printer.
Data Set Ready (DSR). Status signal to the printer indicating the host is in a ready condition.
Data Carrier Detect (DCD). Status signal to the printer. The ON condition is required for the printer to receive data.
Data Terminal Ready (DTR). Control signal from the printer. Subject to configuration.
RS-422
Table 14. PSA3
Input Signals |
| Output Signals | Miscellaneous | ||||
Signal | Pin | Signal | Pin |
| Signal | Pin |
|
|
| ||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- Receive Data | 1 | - Transmit Data | 3 |
| Chassis/Signal | 5 |
|
|
|
| Ground |
|
| ||
+ Receive Data | 6 | + Transmit Data | 8 |
|
|
|
|
(+RXD) |
| (+TXD) |
|
|
|
|
|
|
|
|
|
|
|
|
|
+RXD,
+TXD,
NOTE: ±RXD and ±TXD form signal and return paths of a differential line signal.
306