Epson TM-T88V Technical Reference Manual page 59

Connecting the USB interface cable
1
Attach the locking wire saddle at the location shown in the figure below.
2
Put the USB cable through the locking wire saddle.
Putting the USB cable through the locking wire saddle, as shown in the figure below,
prevents the cable from coming unplugged.
USB upstream connector
3
Connect the USB cable from the host computer to the USB upstream
connector.
Chapter 2 Setup
UB-board
Locking wire saddle
USB cable
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