Yamaha CRW8824SX Series Owner's Manual page 20

Installation
2 Termination
Terminators prevent SCSI signals from being reflected off the last device in the
chain. The SCSI terminator switch should be set to "ON" if your CRW8824SX
drive is the last device on the SCSI chain. If it is not the last device on the chain,
the TERMINATOR switch should be set to "OFF ."
Computer
Hard disk drive
(unterminated)
CRW8824SX
SCSI adapter card
Terminator ON
n By factory default, the Terminator switch is set to "ON."
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