Appendix B: INTERFACE SPECIFICATIONS
This appendix presents the serial and parallel interface specifications. These specifications include pin assignments, protocols and detailed information about how to properly interface your printer with your host or terminal.
Serial Interface
Pin Configuration
The
Pin | Direction | Definition |
1 | Tied to in 6 | Not used |
2 | In | Receive Data (RxData) |
3 | Out | Transmit Data (TxData) |
4 | - | No connection |
5 | - | Logic Ground |
6 | Tied to pin 1 | Not used |
7 | Out | Request to Send (RTS) |
8 | In | Clear to Send (CTS) |
9 | Out | +5V |
Note: Pin 9 is reserved for Keyboard Device Unit (KDU) only, do not connect this pin if you are using a general host like a PC.
Connection With Host
Host 25S | Printer 9P |
| Host 9S | Printer 9P |
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DTR 20 | ……… 1 DSR |
| DTR 4 | ……… 1 DSR |
DSR 6 | ……… 6 DTR |
| DSR 6 | ……… 6 DTR |
TX 2 | ……… 2 RX |
| TX 3 | ……… 2 RX |
RX 3 | ……… 3 TX |
| RX 2 | ……… 3 TX |
CTS 5 | ……… 7 RTS |
| CTS 8 | ……… 7 RTS |
RTS 4 | ……… 8 CTR |
| RTS 7 | ……… 8 CTS |
GND 7 | ……… 5 GND |
| GND 5 | ……… 5 GND |
Three Wire Connection
This method is the simplest method of connecting the printer to a host or terminal. This method requires Software Protocol Handshaking (XON/XOFF flow control).
Host 25S |
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TX 2 | ……….. | 2 RX |
| TX 3 | ……….. | 2 RX | |||||
RX 3 | ……….. | 3 TX |
| RX 2 | ……….. | 3 TX | |||||
GND 7 | ……….. | 5 GND |
| GND 5 ……….. | 5 GND | ||||||
pin 4 |
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pin 5 |
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pin 6 |
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pin 20 |
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Serial port settings
Baud Rate, Parity, Data Bits, and Handshaking may be configured using the Feature Management mode .
Fastmark 600 Series User's Guide | 82 |
