SCSI ID唯一的原則 : ID不可重複, 且與Terminator沒有任何關聯.
Terminator 設定原則:
|------------(SCSI CABLE)-----------|---------------|---------------|
SCSI ***********************DEV 1*******DEV 2******DEV 3
CARD
依你原來的接法:
DEV 1 = plextor 32x => ID3
DEV 2 = plextor 820t => ID4 (後面有接終端器)
DEV 3 = 未接
plextor 820t為CABLE上最後一台裝置, 故Terminator 是 ON.
依你現在的接法:
DEV 1 = plextor 32x => ID3
DEV 2 = plextor 820t => ID4
DEV 3 = plextor 20x cd-rom => ID1 (Terminator ON)
plextor 20x cd-rom變為CABLE上最後一台裝置, 故Terminator要設在plextor 20x cd-rom; 簡而言之: 不論內外接, 離scsi card最遠的DEVICE 其Terminator要打開(ON), 其他的DEVICE的Terminator要關掉(OFF).