本标准定义了机械、电气、计时要求、命令和任务管理交付 在连接到SCSI的SCSI设备之间传输命令和数据的协议要求 并行接口。本标准旨在与SCSI命令集结合使用。这个 由此产生的接口有助于计算机和智能外围设备的互连，从而提供 系统集成商和智能外围设备供应商的通用接口标准。

This standard defines mechanical, electrical, timing requirements, command, and task management delivery protocol requirements to transfer commands and data between SCSI devices attached to a SCSI parallel interface. This standard is intended to be used in conjunction with the SCSI command sets. The resulting interface facilitates the interconnection of computers and intelligent peripherals and thus provides a common interface standard for both system integrators and suppliers of intelligent peripherals.