ISO/IEC 14776-112:2002 ED1

Information technology - Small Computer System Interface (SCSI) - Part 112: Parallel Interface-2 (SPI-2)

Publication date:   May 7, 2002

General information

60.60 Standard published   May 7, 2002


ISO/IEC JTC 1/SC 25 Interconnection of information technology equipment

International Standard

35.200   Interface and interconnection equipment



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The SCSI parallel interface is a local
I/O bus that may be operated over a wide range of transfer rates.The objectives of the SCSI parallel
interface are:

a) To provide host computers with device independence within a class of devices. Thus,different disk
drives, tape drives, printers, optical media drives and other devices may be added to the host
computers without requiring modifications to generic system hardware.

b) To provide compatibility such that properly conforming SCSI-2 devices may interoperate with
SCSI-3 devices given that the systems engineering is correctly done.

This international standard defines the mechanical, electrical, timing and protocol requirements of the
SCSI parallel interface to allow conforming devices to interoperate. The interface protocol includes provision for the connection of multiple initiators
and multiple targets. This standard defines the physical attributes of an input/output bus for interconnecting computers and
peripheral devices.

Life cycle


ISO/IEC 14776-112:2002 ED1
60.60 Standard published
May 7, 2002