Canon DR-3080C - Manual (Page 18)

14 Before Using the Unit
■ Rear
CAUTION
Do not block the ventilation openings. Doing so could cause the
unit to overheat, creating a risk of fire.
Power cord connector
Connect the power cord that is
provided with the scanner here. SCSI connectors
Connect a 50-pin half-pitch (pin
type) SCSI cable connector here.
DIP switches
Use these switches to set the SCSI
ID and to turn the terminator on/off.
Ventilation holes