Epson DM-D210 Technical Reference Guide - Page 87
Data flow of serial commands, Block Diagram
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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 RS-232 cable connector Modular-8 Printer interface connector D-Sub 9 (Male) TXD DSR DTR RXD Computer interface connector D-Sub 25 (Female) DP-110/DP-210 DM-D connector Modular-8 RXD (3) 4 TXD (3) DTR (20) RTS (4) TXD (2) Connection change by JP1,JP2 JP2 3 21 JP1 32 1 DSR (6) RXD (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. 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 87
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