Epson TM-T88IV Technical Reference Manual page 47

Connecting the serial interface (RS-232C) cable
Be sure to turn off the power supply for both the printer and host computer before
connecting the cables.
WARNING
1
Insert the interface cable connector firmly into the interface connector
on the connector panel.
2
When using connectors equipped with screws, tighten them to secure
the connectors firmly.
3
When using interface cables equipped with a grounding 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.
Interface connector
Drawer kick-out connector
Chapter 2 Setup
2
P o w e r s u p p l y
connector
47