Canon DR-5060F Instructions Manual page 25

Setting the terminator
Set the terminator on the last SCSI device on a daisy chain to ON.
<When only the scanner is connected to your computer, or when another
SCSI device is connected on a daisy chain and the scanner is the last SCSI
device of the daisy chain>
Set the terminator DIP switch 1 to ON.
In such a connection, be sure to set the terminator on all other SCSI devices to
2
OFF.
Terminator ON
Terminator OFF
CAUTION
When this unit is connected as the last device of the daisy chain, either set the
terminator DIP switch ON, or set the terminator DIP switch OFF and use a
terminator plug. Note that this unit may malfunction if the terminator DIP switch is
set to ON and the terminator plug is used at the same time.
<When another SCSI device is connected as the last device of the daisy
chain>
Set the DIP switch 1 on the scanner to OFF.
In such a connection, set the terminator on the SCSI device connected as the end
device to ON.
Terminator ON, or
attach terminator.
Terminator OFF
23
Connecting to a Computer