Appendix DP-110/DP-210 Connector Specifications This section explains the DP-110/DP-210 connector specifications. Computer Interface Connector (Serial) Type: D-Sub 25-pin connector 14 25 1 13 Pin assignments 100 Pin Number Signal Name Signal Direction Function 1 FG - Frame ground 2 TXD Output • Stand-alone connection: Transmits data to the computer from this product • Pass-through/Y-type connection: Transmits data to the computer from the TM printer. 3 RXD Input Receives data from the computer. (Computer -> This product) 4 *1 RTS Output This indicates whether the display is ready to receive data. *2 • [SPACE]: The display can receive data. DTR goes to SPACE under the following conditions:
∗ When the display first becomes ready to receive data after power on. ∗ When the self-test has ended. ∗ When the remaining space in the receive buffer becomes 50 bytes o r more after having been 40 bytes or less. • [MARK]: The display cannot receive data. DTR goes to MARK under the following conditions: ∗ The period from when power is turned on to when the display first becomes ready to receive data. ∗ When the self-test is executed. ∗ When the remaining space in the receive buffer becomes 128 bytes o r less (buffer-full state). ∗ When DSR MARK is on, if the TM printer is selected by a peripheral device command. 6 *2 DSR Input Indicates whether the computer is ready to receive data.
• [SPACE]: The computer is ready to receive data. • [MARK]: The computer is not ready to receive data. 7 GND - Signal GND