Appendix B: Interface Specifications; Serial Interface - AMT Datasouth Fastmark 600 Series User Manual

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 RS-232 serial interface uses a female, DB-9 conncetor.
Pin Direction
1 Tied to in 6
2 In
3 Out
4 -
5 -
6 Tied to pin 1
7 Out
8 In
9 Out
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
(PC or compatible)
DTR 20 ........... 1 DSR
DSR 6 ........... 6 DTR
TX 2 ........... 2 RX
RX 3 ........... 3 TX
CTS 5 ........... 7 RTS
RTS 4 ........... 8 CTR
GND 7 ........... 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
(PC or compatible)
TX 2 ........... 2 RX
RX 3 ........... 3 TX
GND 7 ........... 5 GND
pin 4
pin 5
pin 6
pin 20
Serial port settings
Baud Rate, Parity, Data Bits, and Handshaking may be configured using the Feature Management mode .
Fastmark 600 Series User's Guide
Definition
Not used
Receive Data (RxData)
Transmit Data (TxData)
No connection
Logic Ground
Not used
Request to Send (RTS)
Clear to Send (CTS)
+5V
Printer 9P Host 9S
DTR 4
DSR 6
TX 3
RX 2
CTS 8
RTS 7
GND 5
Printer 9P Host 9S
(PC or compatible)
TX 3
RX 2
GND 5 ...........
pin 4
Pin 6
Pin 7
Pin 8
Printer 9P
(PC or compatible)
........... 1 DSR
........... 6 DTR
........... 2 RX
........... 3 TX
........... 7 RTS
........... 8 CTS
........... 5 GND
Printer 9P
........... 2 RX
........... 3 TX
5 GND
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