Chapter 4 Application Development Information Data flow of serial commands This section explains the data flow when using this product using a serial connection. Block Diagram DM-D110/DM-D210 CPU for display unit Level shifter Modular-8 RS-232 cable connector DP-110/DP-210 DM-D connector Modular-8 Computer interface connector D-Sub 25 (Female) 4 RXD (3) TXD (3) Printer interface connector D-Sub 9 (Male) DTR (20) RTS (4) Connection change by JP1,JP2 TXD (2) DSR (6) DTR (4) RESET (25) RESET (9) ∗ The illustration above is the block diagram when using DP-110. When using DP-210, see the following table.
87 DSR DTR DSR (6) RXD (2) Item DP-110 DP-210 Printer interface connector D-Sub 9 (Male) D-Sub 25 (Female) TXD 3 2 DSR 6 6 RXD 2 3 DTR 4 20 RESET 9 25