Data Flow Of Serial Commands; Block Diagram - Epson DM-D210 Technical Reference Manual

Data flow of serial commands

This section explains the data flow when using this product using a serial connection.

Block Diagram

DP-110/DP-210
 The illustration above is the block diagram when using DP-110. When using DP-210, see the following table.
Printer interface connector
TXD
DSR
RXD
DTR
RESET
74
DM-D110/DM-D210
CPU for display unit
Level shifter
RS-232 cable connector
DM-D connector
RXD (3)
DTR (20)
Connection
RTS (4)
change
by JP1,JP2
TXD (2)
DSR (6)
RESET (25)
Item
Modular-8
Modular-8
TXD (3)
DSR (6)
JP2 JP1
RXD (2)
3 2 1
3 2 1
DTR (4)
RESET (9)
DP-110
D-Sub 9 (Male)
3
6
2
4
9
DP-210
D-Sub 25 (Female)
2
6
3
20
25