Epson DM-D210 Technical Reference Manual page 91

Printer Interface Connector (Serial): DP-210
Type: D-Sub 25-pin connector
Pin assignments
Pin Signal
Number Name Direction
1 FG -
2 TXD Output
3 RXD Input
6 DSR Input
7 GND -
20 DTR Output
25 RESET Output
13
2
Signal
Frame ground
Receive data from the TM printer. (TM Printer -> Computer)
Transmit data to the TM printer. (Computer -> TM Printer)
This indicates whether the display is ready to receive data from the TM printer.
 [SPACE]: The TM printer can receive data.
When the TM printer becomes ready to receive data SPACE is output.
 [MARK]: The TM printer cannot receive data.
If the TM printer becomes ready to receive data, MARK is not output.
Signal GND
Indicates whether the host is ready to receive data.
 [SPACE]: The TM printer is ready to receive data.
 [MARK]: The TM printer is not ready to receive data.
Reset signal to the printer. (Computer -> TM Printer)
1
14
Function
Appendix
91