Epson DM D110 - Data Flow of Serial Commands; Block Diagram

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Chapter 4 Application Development Information
4
Data flow of serial commands
This section explains the data flow when using this product using a serial connection.
Block Diagram
∗ 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
DM-D110/DM-D210
CPU for display unit
Level shifter
DM-D connector
Modular-8
RS-232 cable connector
Modular-8
TXD DSR DTR RXD
DP-110/DP-210
Connection
change
by JP1,JP2
JP2 JP1
3 2 1
3 2 1
Computer interface connector
D-Sub 25 (Female)
Printer interface connector
D-Sub 9 (Male)
TXD (2)
DSR (6)
RXD (3)
DTR (20)
RESET (25)
RTS (4)
RXD (2)
DTR (4)
TXD (3)
DSR (6)
RESET (9)