Figure 19. Scsi Daisy-Chain Interface Cabling For "N" And "W" Model Drives - Seagate ST34520N - Medalist 4.55 GB Hard Drive Product Manual

Medalist Pro Product Manual, Rev. D
"N" Model
Drive
[6]
SCSI ID 1
SCSI ID 0
[1] Closed end type 50 pin connector used. Install terminator enable (TE) jumper.
[2] Open end type (in-line application) connector used. Remove terminator enable (TE) jumper.
[3] Host need not be on the end of the daisy chain. Another device can be on the end with the terminator, the
host having no terminator.
[4] Total interface cable length must not exceed that specified in Section 9.6.3.1 (including host adapter/initia-
tor). The cable length restriction limits the total number of devices allowed. See Table 15.
[5] SCSI ID7 has highest arbitration priority, ID0 has lowest for "N" models. For "W" models, priority is ID7 to
ID0, then ID15 to ID8 (ID 8 very lowest).
[6] Last drive on the daisy chain.
[7] Open-end type 68-pin connector used. On "W" models, install terminator enable (TE) jumper plug. If "LW"
model drive is end device on the cable daisy chain, an external terminator is required (not furnished with
the drive).
Figure 19. SCSI daisy-chain interface cabling for "N" and "W" model drives
"W" Model
Drive
[6]
[1]
2 through X
SCSI devices [4]
[2]
[2]
"LW" Model
Drive
[7]
Pin 1
(check your
adapter for Pin 1 location)
SCSI ID 7 [5]
[1]
Host Adapter
PCB
[3]
61
Terminator
[7]