Seagate ST373455LC, ST3146855LC, ST3146855LW, ST3300655LW, ST373455LW Right-angle to Pcba connectors

Recommended mating 80-position PCBA mount connectors:

Straight-in connector		Hot plug version (with ground guide-pin)
Seagate P/N:	77678703
Amp US P/N:	2-557103-1	787311-1	with polarization
or	94-0680-02-1
Amp US P/N:	2-557103-2	787311-2	without polarization
or	94-0680-02-2
Amp Japan P/N:	5-175475-9

Right-angle to PCBA connectors

Seagate P/N: 77678559

Amp US P/N: 2-557101-1

Amp Japan P/N: 5-175474-9

For additional information call Amp FAX service at 1-800-522-6752.

SCSI ID 7 [5]

Pin 1

(check your

adapter for Pin 1 location)

[1]

Host

Adapter

PCB

[3]

“LW” Model

Drive

Terminator [7]

[6]

2 through X SCSI devices [4]

SCSI ID 1

SCSI ID 0

[2]

[1]Closed end type 68-pin connector used. Terminators enabled.

[2]Open end type (in-line application) connector used.

[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 ANSI document T10/1365D (including host adapter/initiator). The cable length restriction limits the total number of devices allowed.

[5]SCSI ID7 has highest arbitration priority, then ID15 to ID8 (ID 8 has the very lowest priority).

[6]Last drive on the daisy chain.

[7]Open-end type 68-pin connector used. If end device, use external terminator and closed-end type 68-pin connector.

Figure 15. SCSI daisy-chain interface cabling for LW drives

Cheetah 15K.5 SCSI Product Manual, Rev. J 61