Pass-Through Connection - Epson DM-D210 Technical Reference Manual

Pass-through Connection

A pass-through connection allows you to connect the customer display and the TM printer to one serial port of
the computer.
The data flow when the pass-through connection is as follows.
Computer
TM Printer
 With the pass-through connection, the data from the computer is stored in the reception buffer of the dis-
play, and then the data is processed sequentially and only data for the printer is transmitted to the printer.
The data transmitted from the printer is transmitted to the computer directly without passing the display.
 The peripheral equipment elective command distinguishes between the data for the customer display and the
data for the TM printer.
 The communication settings for the computer, TM printer, and customer display are all the same.
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DP-110/DP-210
Transmit data from the computer
Transmit data to the computer from the TM printer
Transmit data to the TM printer
Power supply
DM-D110
DM-D210