68 Connecting to the Host Computer and Options
Pass-through Connections
TM printer is connected to DM-D via serial port and DM-D is connected to the host PC via serial 
port. The following table shows the application control and cable connection types.
Connection procedure
1. Press the connector on the end of the interface cable firmly onto the interface connector 
located on the connector panel.
2. When using connectors equipped with screws, use the screws to tighten the connectors 
firmly in place.
Tightening Screws
3. For interface cables equipped with a ground line, attach the ground line to the screw hole 
marked "FG" on the printer.
4. Connect the other end of the interface cable to the host computer.
Xon/Xoff 
(except OPOS)
DTR/DSR
(DOS, Windows
(only OPOS))
RTS/CTR
(DOS, Windows (hardware 
control: Windows driver))
Xon/Xoff Not available — —
DTR/DSR  1 — Type A or B Type B
 2 — Type A or B Type A or B
Application 
control
TM side 
control setting