Some printers may require one or more of the following connections:
6.Data Set Ready (DSR) from the printer must be connected to Pin #6 on the 232SPS2 module.
7.Clear To Send (CTS) from the printer should be connected to Pin #5 on the 232SPS2 module.
8.Data Carrier Detect (DCD) from the printer should be connected to Pin #8 on the 232SPS2 module.
NOTE: IBM PC’s (or compatible) serial ports and serial printers are both DTE devices. Therefore, a null modem cable (like a serial printer cable!) must be used when connecting a PC’s serial port to a printer. A null modem cable or serial printer cable should not be used to connect to the 232SPS2 (unless your device is a DCE
TABLE
Serial Port |
|
| 232SPS2 | |
(DTE) |
|
| (DCE) | |
Signal Name | Direction | |||
|
| Pin # | ||
2 | Transmit Data | 2 | ||
3 | Receive Data | 3 | ||
4 | Request to Send |
| 4 | |
5 | Clear to Send | 5** | ||
6 | Data Set Ready | 6** | ||
7 | Signal Ground |
| 7 | |
8 | Carrier Detect | 8** | ||
20 | Data Terminal | 20 | ||
| Ready |
|
| |
22 | Ring Indicator |
| 22 |
TABLE
Serial Port |
|
| 232SPS2 |
(DTE) |
|
| (DCE) |
Signal Name | Direction | ||
Pin # |
|
| Pin # |
1 | Data Carrier Detect | 8** | |
2 | Receive Data | 3 | |
3 | Transmit Data | 2 | |
4 | Data Terminal | 20 | |
| Ready |
|
|
5 | Signal Ground |
| 7 |
6 | Data Set Ready | 6** | |
7 | Request to Send |
| 4 |
8 | Clear to Send | 5** |
*When using XON/XOFF control, this connection may not be required.
**Some printers may require this connection.
Appendix B: Serial Port Connections | Appendix B: Serial Port Connections | ||||
B&B Electronics | PO Box 1040 |
|
| B&B Electronics | Ottawa, IL 61350 |
PH (815) |
|
| PH (815) |