Physical Interface; Dc Cable And Connector - Seagate ST34520N - Medalist 4.55 GB Hard Drive Product Manual

Medalist Pro Product Manual, Rev. D
9.6

Physical interface

Figure 16 shows the locations of the drive physical interface components for the N drives. Shown are the loca-
tions of the DC power connector, the SCSI interface connector, the I/O line terminators, and the drive select
and option select headers.
Details of the physical, electrical and logical characteristics are given in sections following, while the SCSI
operational aspects of Seagate drive interfaces are given in the Seagate SCSI Interface Product Manual , part
number 77738479.
This section describes the connectors, cables, signals, terminators and bus timing of the DC and SCSI I/O
interface. See Section 9.8 and Section 9.9 for additional terminator information.
9.6.1

DC cable and connector

"N," "W," and "LW" model drives receive DC power through a 4 pin connector (see Figures 16 and 17 for pin
assignments) mounted at the rear of the main PCB. Recommended part numbers of the mating connector are
listed below, but equivalent parts may be used.
Type of cable Connector
14 AWG MP 1-480424-0
"WC" model drives receive power through the 80 pin I/O connector. See Table 19.
Contacts (20-14 AWG)
AMP 60619-4 (Loose Piece)
AMP 61117-4 (Strip)
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