Adaptec APA-348 Guida di Installazione Scaricare il pdf (Pagina 12)

APA-348 Installation Guide

Part Number: 510603-00, Rev. A

Print Spec Number: 492716-00

Current Date: 5/19/94 ECN Date: 5/31/94

SCSI Connector Pinouts

This section documents the SCSI interface connector

on the MiniSCSI Plus as well as typical connectors

found on SCSI devices. Internal SCSI devices com-

monly use a 50-pin header connector (SCSI specifica-

tion, Alternative 1), consisting of two rows of 25

male contacts with adjacent contacts 2.54 mm

(0.1 inch) apart, as shown below.

A typical single-ended shielded SCSI device 50-pin

connector (SCSI specification, Alternative 2) is

shown below; this connector is most often used with

an external SCSI device.

Table 1 lists the pin assignments for each connector

type. Definitions of the various signals may be found

in any SCSI design reference book. The SCSI inter-

face is fully defined in ANSI X3.131-1986; this docu-

ment is available from Global Engineering

Documents, 2805 McGaw Ave, Irvine, CA

92713-9539 USA, telephone (714) 261-1455.

. . . . . . . . . . . . . . . . . . . . . . . . . .

Internal SCSI

Connector

External SCSI

Connector

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Adaptec APA-348 Guida di Installazione Pagina 12