Ifs410 81 end user user support
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IFS410.81 End User User Support. Chapter 10 Installing End-User Computing Systems. Site Preparation. Pre-installation inspection Checklist of issues Space requirements Space constraints Storage requirements Ergonomic issues ADA or OSHA accommodations or issues

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IFS410.81 End User User Support

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Ifs410 81 end user user support

IFS410.81 End User User Support

Chapter 10

Installing End-User

Computing Systems


Site preparation

Site Preparation

  • Pre-installation inspection

  • Checklist of issues

    • Space requirements

    • Space constraints

    • Storage requirements

    • Ergonomic issues

    • ADA or OSHA accommodations or issues

    • Adequate power supply accessible

    • Power conditioning required

    • Telephone and/or network access

    • Air conditioning required

    • Lighting problems

    • Fire suppression


Locating system components

Locating System Components

  • Locate computer system and devise strategies to conserve space

  • System Components

    • System unit

      • The footprint of a desktop case is its length times its width (measured in square inches)

    • Keyboard and Mouse

      • Optimal desk height is 26-28 inches from the floor

    • Monitor

      • Optimal user view is straight ahead or slightly down

    • Printer

      • Optimal access for loading paper, retrieving print-outs, and clearing jams


Locating system components continued

Locating System Components (continued)

  • Supplies (manuals, ink/toner cartridges, media, printer paper)

    • Convenient access

    • Tip: avoid storing paper in damp area

    • Tip: avoid storing magnetic media near generators, motors, electric and phone equipment

  • Furniture considerations

    • Importance of adjustable chair

      • Adjustable: seat height, seat swivel, tilt, backrest, arm rest

      • Waterfall seat edge

      • 5-leg base


Space constraint solutions

Space Constraint Solutions

  • Separate computer worktable

  • Flat panel display screen

  • Monitor arm for CRT display

  • Keyboard shelf

  • Locate system unit and peripherals under or close to, but not on, user’s desk


Ergonomic concerns

Ergonomic Concerns

  • Ergonomics is the study of how to design computer systems and workspaces to

    • Minimize health problems

    • Maximize worker

      • Safety

      • Productivity

      • Comfort

      • Job satisfaction


Health concerns related to ergonomic problems overview

Health Concerns Related to Ergonomic Problems (Overview)

  • Back or Neck Muscle Pain

  • Leg Pain

  • Eyestrain and Headaches

  • Wrist and Finger Pain

    • Repetitive strain injuries (RSI) result from continuous use of joints in a limited range of motion

    • Carpal tunnel syndrome is a common form of repetitive strain injuries that affects wrists and fingers


Impacts of ergonomic problems

Impacts of Ergonomic Problems

  • Ergonomics are important concerns

  • Injuries

  • Permanent disabilities

  • Legal rules and regulations

    • Occupational Safety and Health Administration (OSHA)

    • Americans with Disabilities Act (ADA)

  • Tip: Ergonomics is an area where a user support specialist can develop special expertise to add value to their employment or résumé


Power requirements overview

Power Requirements Overview

  • Many small computer systems do not require special electrical power

  • Special situations:

    • Outlets

    • Outlet wiring

    • Circuit amperage

    • Shared circuits

    • Power stability

    • Multiple computers


Special power requirements

Special Power Requirements

1. Outlets

  • Old buildings may have two-pronged outlets

  • Avoid “cheater” plug adapters

    2. Outlet wiring

  • Use LED tester

  • Test three-prong outlets to make sure the hot, neutral, and ground prongs are wired correctly

continued


Special power requirements continued

Special Power Requirements (continued)

3. Circuit amperage

  • Determine total amperage to see whether circuit can handle the load of devices

    4. Shared circuits

  • Do not install computer system on a circuit that services devices with heavy motors or generators

    • A dedicated circuit is preferable

continued


Special power requirements continued1

Special Power Requirements (continued)

5. Power stability

  • Get advice from local electric company

    • Use metering device to measure quality of power

  • Power conditioner is a device placed between computer and power source that regulates electrical power to keep it within acceptable limits

    6. Multiple computers

  • Consult electrical contractor to verify that power is adequate and well-conditioned


Tips on power

Tips on Power

  • Use an electrical power strip for convenience, but not as an extension cord

  • Best power strips include surge suppression features

    • Certification: UL 1449 (second edition)

    • Peak protection: at least 40,000 amps

    • Clamping voltage: 330 volts or less

    • Clamping response time: 1 nanosecond or less

    • Energy rating (dissipation): 750 joules or more

    • Status indicator: LED lamps

    • Warranty against damage to protected equipment


More power tips

More power tips

  • Avoid

    • Stressed cables

      • too tight

      • hard bends

    • Cables on floor or under carpet

  • Use

    • Wall-mounted cable conduits (runways)

    • Protective rubber conduits

    • Plastic ties to bundle cables


Telephone and network access

Telephone and Network Access

  • Determine location of access points before installation in case extension lines are necessary to reach installation site

  • Identify type of network access

    • Dial-up modem

    • DSL

    • Cable modem

    • ISDN

    • Satellite

    • T1 or T3

    • Wireless


Air conditioning

Air Conditioning

  • May be required in locations where a large number of computer systems will be installed close together

    • Small office

    • Training room

    • Computer lab facility

    • Mainframe and minicomputer facilities

  • Consult an HVAC specialist

    • Determine BTUs of air conditioning capacity required


Lighting problems

Lighting Problems

  • Light intensity

    • Reduce lighting in over-lit areas

  • Light source

    • Position display screen to avoid glare on screen

  • Light type

    • Florescent bulbs may flicker at same rate as CRT-type monitor


Fire suppression

Fire Suppression

  • Electromechanical equipment can cause fires, primarily due to power supply problems

  • If no fire extinguisher system exists:

    • Use portable fire extinguishers rated for electrical fires (Class C)

    • Use Halon-substitute in gas extinguisher


Site management notebook

Site Management Notebook

  • A site management notebook consolidates important information about a computer system

    • Useful to operate, diagnose, troubleshoot, reconfigure, upgrade, and repair system and its components

    • Critical in multiple-computer situations where many support staff are likely to work on various components


Contents of site management notebook

Contents of Site Management Notebook

  • Hardware configuration

  • Operating system configuration

  • Network configuration

  • Software licenses

  • Application software configuration

  • Special operating procedures

  • Warranty and repair information

  • Problem log

  • Backup media log


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