Compaq S5 manual Sbb

Page 38

DWZZH 16–Bit UltraSCSI Hub (Rack-Mountable)

initiator

A SCSI device that requests another device on the bus to perform an operation. Any device on the bus can be an initiator or a target.

logical bus

A single-ended, physical bus connected to a differential, physical bus by a SCSI bus converter.

personality module

The BA356 module that interfaces the SCSI-bus to the BA356 shelf.

physical bus

Two SCSI terminators separated by cables, connectors, and/or the backplane circuitry.

SBB

StorageWorks building block. The basic building block of the StorageWorks product line. Any device conforming to shelf mechanical and electrical standards installed in either a 3½-inch or 5¼-inch carrier is considered to be an SBB, whether it is a storage device, a power supply, or other device.

SBB shelf

The common name for any StorageWorks shelf that contains only power supply and storage SBBs.

SCSI

Small Computer System Interface. This ANSI interface defines the physical and electrical parameters of a parallel I/O bus used to connect computers and devices. The StorageWorks subsystem implementation uses SCSI–2 for the transfer of data.

SCSI bus converter

Sometimes referred to as an adapter. (1) A connecting device that permits the attachment of accessories or provides the capability to mount or link units. (2) The device that connects a differential SCSI bus to a single-ended SCSI bus.

SCSI device

A host computer adapter, a peripheral controller, or an intelligent peripheral that can be attached to the SCSI bus.

SCSI device ID

The bit-significant, representation of the SCSI addressing referring to one of the signal lines numbered 0 through 15. Also referred to as target ID. For example, SCSI device ID 1 would be represented as 00001.

SCSI mid-bus position

The physical location of a controller or a device that the SCSI bus passes through enroute to the controller or device that contains the SCSI bus termination.

Glossary–2

EK–SMDZS–UG. B01

Image 38
Contents Dwzzh 16-Bit UltraSCSI Hub Rack-Mountable Japanese Vcci Statement Second edition, NovemberContents Figures TablesRevision Record Revision Level Date Summary of ChangesPage Related Documentation About This GuideAudience Document Structure Introducing the 16-Bit UltraSCSI Hub Rack-MountableGetting Help Page UltraSCSI Hub Features Introducing the 16-Bit UltraSCSI Hub Rack-MountableProduct Descriptions DWZZH-S5 DWZZH-S5DWZZH-09 DWZZH-09Product Specifications Lists the functional specifications for the Dwzzh HubDwzzh HUB Functional Specifications Cont’d Page Install 0.5m Cable in DWZZH-09 Setting Up the DWZZH-09Set Up DWZZH-09 Install Tri-link and Cable in Storage Ports of SBBs A Sample Configuration Configuration Note Maximum Allowable Cable DistancesUsing the 16-Bit UltraSCSI Hub Large Hub Fair ArbitrationLarge Hub Addressing Configurations Narrow Addressing SettingDWZZH-S5 Scsi ID Assignments Front Panel DWZZH-09 Scsi ID AssignmentsDWZZH-S5 Front Panel Fair ARB Disable IndicatorsDWZZH-S5 Scsi Narrow ID Assignments Determining the Configuration Selecting the Scsi CablesInstalling the DWZZH-09 Upgrade Kit DWZZH-09 Upgrade Kit ContentsInstall Upgrade Install 0.5m CableInstall power cords in power supplies on unit Page Swcc and UltraSCSI Hubs Agents and StorageRunning One Swcc Agent for a Particular Storage Subsystem Removable Parts of the DWZZH-S5 and DWZZH-09 Part Number DescriptionFigure A-1 Removable Parts of the DWZZH-S5 Glossary ControllerSBB Scsi cable

S5 specifications

The Compaq S5, introduced in the mid-1990s, marked a notable entry in the realm of portable computing. This laptop was part of Compaq's efforts to deliver user-friendly, mobile computing solutions for both personal and professional environments. Combining functionality with compact design, the S5 quickly became popular among users seeking a reliable machine for everyday tasks.

One of the standout features of the Compaq S5 was its impressive portability. Weighing in at just around 5.3 pounds, the laptop was light enough to carry without much hassle, making it an ideal companion for on-the-go professionals. It boasted a slim profile that fit comfortably into most laptop bags, catering to those who valued mobility in their devices.

The S5 was equipped with a 10.4-inch passive matrix TFT display, offering a resolution of 640 x 480 pixels. While the display technology may seem modest by today’s standards, it provided decent visual clarity for the time, making it suitable for activities like document editing and basic multimedia viewing. With a maximum brightness of 80 nits, the screen could perform adequately in various lighting conditions, though it wasn't impervious to reflections.

In terms of performance, the Compaq S5 featured an Intel Pentium processor, delivering adequate speed for the software of the era, including word processing and simple graphic manipulations. The configurations typically included 8 to 16 MB of RAM and a hard drive ranging from 120 to 500 MB, which were quite acceptable for the applications common in the mid-90s.

The laptop ran on MS-DOS with Windows 3.1, allowing users to leverage the growing suite of software available for the platform. The integration of a floppy disk drive further complemented the machine's capability, facilitating easy file transfers and software installations, even as other storage technologies began emerging.

Connectivity options were limited by today's standards, but the Compaq S5 featured a modem port for dial-up connections, allowing users to connect to the internet through telephone lines. The laptop was also designed to support external peripherals through serial and parallel ports, providing some flexibility for additional functionality.

Battery life, an essential attribute for any portable device, was decent for the Compaq S5. It typically offered around 2 to 4 hours of usage on a single charge, depending on workload and settings. This made it viable for brief meetings or travel, although users often sought access to power outlets to extend their computing sessions.

In conclusion, the Compaq S5 represented a pivotal moment in portable computing during the 1990s. While it may not meet today's expectations for performance and features, it successfully tapped into the growing demand for mobile computing solutions and provided a reasonably powerful platform for that era.