Y-Type Connection - Epson DM-D110 Technical Reference Manual

4.2.3 Y-type Connection

With the Y-type connection, the command from the serial/USB port of the host personal
computer is transmitted through the printer to control the DM-D110 and the cash drawer.
The data flow when the DM-D110 is connected with the Y-type connection is as follows.
Host PC
Printer
Power supply
The data from the host personal computer is transmitted to the printer and the same data is transmitted
to the DM-D110 with the stand-alone connection
The peripheral equipment command of ESC/POS distinguishes between the data for the
DM-D110 and the data for the printer.
Set the communication condition of the DM-D110 as follows.
Communication speed:
Communication data length:
Parity:
4-4 Hardware
19200bps
8Bit
Off
Transmit data from the host PC
Transmit data to the printer
Transmit data to the host PC from
the printer
DM-D110
(Display)
Rev. A