Compaq 4200 Family manual Scsi Bus Connectors, Scsi Bus Termination, Status Displays

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I/O Module 3–3

SCSI Bus Connectors

The 68-pin VHDCI connector enables you to configure the enclosure as single-bus, single initiator subsystem.

SCSI Bus Termination

A SCSI bus is defined by two bus terminators. The external bus has terminators on the controller and on the module. Each internal bus has a terminator on the module and on the backplane. The module connects the external bus and the internal bus together. On each module, there is a green LED (see Figure 3–2) that defines the status of internal bus, backplane terminator.

Status Displays

See Figure 3–2 for the location of the two green status LEDs, and Table 3–1 for a description of the LED displays.

CXO6983A

1Terminator Status LED

2Power or Locate LED

Figure 3–2. Single Bus Status LEDs

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Contents Enclosure 4200 Family LVD Disk Enclosures Page Contents Appendix a Glossary Index List of Figures List of Tables O Module About This GuideIntroducing the Enclosure Starting the EnclosureReplacing CRUs Enclosure Power and CoolingAppendix B, Specifications Disk DrivesDescription Documentation ConventionsSymbol Related Publications Related DocumentsIntroducing the Enclosure ChapterDisk Enclosure Rear View Disk Enclosure FeaturesData Integrity Power SuppliesScsi Buses High AvailabilityStatus Monitoring and Display Enclosure LayoutEMU Element Functions Element ReplacementCRU Replacement Methods Major ElementsModule Power Supply-DualPower Supply-Single FanStarting the Enclosure Connecting the Scsi Bus CablesDescription Part Number Meters Feet Scsi Bus CablesLength Description Meters Feet Applying Power Installing Scsi Bus CablesVerifying Operation Rear Status LEDs Module Single-Bus Module Module Power ProtectionScsi Bus Connectors Scsi Bus TerminationStatus Displays Disk Enclosure Bay Addresses Replacing an I/O ModuleScsi Address Map Single-Bus Module LED DisplaysTypical 1-Inch Disk Drive Disk DrivesStatus Reporting Disk StatusDisk LED Status Displays Fault Status Drive Blank Drive PowerReplacing a Disk Power Supply and Fan Assembly Components Enclosure Power and CoolingPower Options Enclosure PowerTemperature Sensing FansFan Interface Replacing a Power Supply or Fan Power Supply and Fan Status DisplaysNonoperational Status Ordering a Spare CRU Replacing CRUsESD Protection Basic Replacement ProceduresCommon Replacement Procedures Before starting the replacement procedureReplacing CRUs Replacing a Drive with a Drive Blank Installing a Drive BlankInsert the drive blank part-way into the enclosure FCC Class B Certification Regulatory NoticesCountry-Specific Certifications Denmark Safety DemcoAppendix B SpecificationsFigure B-1. Dimensions-Vertical Orientation Table B-1 Table B-2 Element Physical SpecificationsPower Supply without fan Environmental SpecificationsTable B-3 Operating Specifications Table B-4 Shipping or Short Term Storage SpecificationsPower Specifications Table B-5 AC and DC Power SpecificationsAC Power Specifications Glossary Ambient temperatureEMU RAID Scsi ID Index Enclosure 4200 Family LVD Disk Enclosures User Guide Index

4200 Family specifications

The Compaq 4200 Family represents a pivotal line of desktop computers designed by Compaq, aimed at fulfilling the increasing demand for reliable, efficient computing solutions in both business and home environments in the late 1990s. This series offered a diverse array of models, catering to varying levels of performance and user requirements, ultimately setting a standard for its time.

One of the standout features of the Compaq 4200 series was its robust performance, achieved through the integration of Intel Pentium processors, which delivered superior speed and multitasking capabilities. This made the 4200 family ideal for running productivity software, database applications, and everyday tasks efficiently. Depending on the model, users could choose configurations with varying clock speeds, allowing for tailored performance to meet specific user needs.

The Compaq 4200 Family also incorporated advanced technologies that enhanced user experience. Among these was the implementation of a high-capacity hard drive, which provided ample storage space for documents, applications, and multimedia files. This was complemented by increased RAM options, ensuring smooth performance and the ability to run multiple applications simultaneously without significant lag.

Graphics capabilities were another notable feature of the 4200 series. Many models offered integrated graphics options, allowing users to engage in light gaming and multimedia tasks without the need for additional hardware. Furthermore, the inclusion of PCI slots enabled users to upgrade their systems with dedicated graphics cards, enhancing visual performance for more demanding applications.

For connectivity, the Compaq 4200 Family included a variety of ports, such as USB, serial, and parallel connections, allowing users to easily connect peripherals like printers, scanners, and external storage devices. The inclusion of a built-in modem facilitated internet connectivity, making it convenient for users to access online resources.

Another characteristic of the Compaq 4200 series was its user-friendly design. The systems were constructed with accessibility in mind, featuring easy-to-open cases for upgrades and repairs. Additionally, Compaq provided comprehensive support resources, thereby ensuring that users could easily troubleshoot and maintain their systems.

In conclusion, the Compaq 4200 Family was emblematic of its era, showcasing a blend of impressive performance, flexibility, and user-centric design. It served a wide range of users, from professionals in corporate environments to families requiring dependable home computing solutions, making it a significant player in the landscape of late 1990s computing technology.