Chapter 1 Safety and Comfort Promoting a Safe and Comfortable Work Environment ........1-2 Important Choices .
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Arm Supports and a Palm Rest ....1-14 Papers and Books ......1-15 Phone .
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Installation Requirements ....1-28 General Precautions for Compaq Products ..1-28 Precautions for Portable Computer Products ..1-32 Precautions for Server and Network Products .
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Telephone Network Connection ....2-7 Auto Dialing with the Modem ....2-9 Benutzerhinweise für besondere Bestimmungen in Österreich .
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Mobile Products – German Ergonomics Notice . . . 2-15 Locating the Regulatory Compliance Markings Labels ........2-15 Energy Compliance .
Safety and Comfort Chapter 1 Å Å Å Å WARNING: There may be a risk of serious physical injuries from working at your computer workstation. Read and follow the recommendations in this section to minimize the risk of injury and to increase your comfort.
Promoting a Safe and Comfortable Work Environment Posture, lighting, furniture, work organization, and other work conditions and habits may affect the way you feel and how well you work. By adjusting your work environment and personal practices, you may be able to minimize fatigue and discomfort, and reduce the risk of resulting strains that some scientists believe can lead to injury.
Key Principles To promote safety and comfort, follow these principles whenever you use your computer. Safety and Comfort Adjust Adjust your body position and your work equipment. There is no one “right” position. Find your comfort zone, as described in this Section, and when working at your computer, frequently adjust within this zone.
Finding Your Comfort Zone A Range of Rather than working in a single posture, find your comfort zone. Your comfort zone Positions is a range of positions that is generally appropriate and comfortable for your given work situation. Move Sitting still for long periods can cause discomfort and muscle fatigue. Changing postures is good for many parts of your body, including your spine, joints, muscles, and circulatory system.
Different Tasks, Your choice of posture within your comfort zone may vary with your task. For Different example, you may find a reclined posture most comfortable for computer tasks, and a more upright posture more comfortable for tasks requiring frequent reference to Postures papers or books.
Feet, Knees, and Make sure your feet can rest solidly and comfortably on the floor while sitting. Use Legs an adjustable work surface and chair that allow your feet to rest firmly on the floor, or use a footrest. If you use a footrest, be sure it is wide enough to accommodate different leg positions within your comfort zone.
Back Use your chair to fully support your body. Distribute your weight evenly and use the entire seat and backrest to support your body. If your chair has adjustable low back support, match the contours of the chair’s backrest to the natural curve of your lower spine.
Forearms, Keep your forearms, wrists, and hands aligned in a straight, neutral position, whether Wrists, and you are working at a desk or table, or sitting on a couch or bed. Avoid bending or angling your wrists while typing or using a pointing device. Hands Don’t anchor your wrists When typing, do not anchor or rest your wrists on your work surface, your thighs, or...
J J J J HINT: Split Keyboards If you find it difficult to type with a straight, neutral wrist position, you may want to try a split keyboard. Be aware, however, that improper setup or posture while using a split keyboard can increase bending in your wrists.
Cleaning your monitor and eyeglasses Keep your display screen and your eyeglasses or contact lenses clean. If you use a glare-reduction filter, clean it according to the manufacturer’s directions. Having your eyes examined To be sure that your vision is adequately corrected, have your eyes examined regularly by a vision care specialist.
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Positioning the monitor Adjusting the monitor height Your monitor position should allow your head to be balanced comfortably over your shoulders. It should not cause your neck to bend forward uncomfortably or backward to any degree. You may find it more comfortable to position the monitor so that the top line of text is just below your eye height.
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Adjusting monitor height for bifocal and trifocal users If you wear bifocals or trifocals, it’s especially important to properly adjust your monitor height. Avoid tilting your head back to view the screen through the lower portion of your glasses; this could lead to muscle fatigue in your neck and back. Instead, try lowering your monitor.
Place a visor on your monitor. This device may be as simple as a piece of cardboard extending out over the monitor’s top front edge. Avoid tilting or swiveling your display in a way that leads to an uncomfortable head or upper back posture.
Arm Supports You may find that supports for your forearms or hands allow you to be more relaxed and and a Palm Rest comfortable. Using arm supports Some chairs and desks provide padded areas for resting your arms. You may find it comfortable to rest the middle of your forearms on these supports while typing, pointing, or pausing.
J J J J HINT: For Pauses Only Palm rests should only be used during pauses, when you are not typing or using your pointing device. AVOID! Armrests should not cause you to: Shrug or drop your shoulders. Put excessive pressure on your elbows. “Wing”...
Phone Cradling your phone between your ear and shoulder may lead to neck, shoulder, and back discomfort. If you use your phone a lot, try using a headset or positioning your phone so you pick it up with your non-dominant hand. This frees your dominant hand for note-taking.
Working in Comfort Using a Maintaining a high level of comfort when using a notebook computer may be more Notebook challenging than when using a desktop computer. Therefore, you should be especially alert to your body’s signals, such as any feeling of discomfort. Also, be sure to adhere Computer to the key principles presented earlier in this section.
J J J J HINT: Long Hours of Use You may find it more comfortable to use a full-size keyboard, monitor, and detached mouse or trackball with your notebook computer. This is especially important when working on your notebook computer for long hours.
J J J J HINT: “Hunt-and-Peck” Typing Non-touch-typing causes the neck to bend forward repeatedly. To minimize this repetitive movement, learn how to touch-type so you don’t need to look down at the keyboard as often. AVOID! Avoid banging on the keys. Don’t use more force than needed to press the keys. Pointing Style Use your whole arm and shoulder to move the mouse, not just your wrist.
J J J J HINT: Pointing Comfort When using a mouse or trackball, hold it loosely. Keep your hand relaxed, and click the buttons using a light touch. When you are not using your pointing device, don’t hold onto it; let it go. Switch Hands To give your hand a break, you may choose to control your mouse or trackball with the opposite hand for a while.
Taking Breaks As noted earlier in this section, your furniture placement, office equipment, and lighting and Varying are only a few of the factors that determine comfort. Your work habits are also very important. Remember the following: Your Tasks Take breaks When you work at your computer for long periods, take short breaks at least once per hour and preferably more often.
Monitoring Your The comfort and safety of working at your computer can be affected by your general Health Habits state of health. Studies have shown that a variety of health conditions may increase the risk of discomfort, muscle and joint disorders, or injuries. and Exercise These preexisting conditions include: Hereditary factors...
Organizing Your Adjustments The order in which you follow the advice in this chapters depends on the adjustability of your work surface. If your work surface height adjusts, then systematically adjust yourself and your computer “from the ground up.” If you have a fixed desk or table, systematically adjust yourself and your computer “from the top down.”...
Self-Check To increase your comfort and reduce potential safety risks, use this checklist to help you evaluate your work posture and habits. Seated Position Have you found a range of seated postures that are most comfortable for you? Are you changing postures within your “comfort zone” throughout the day, especially in the afternoon? Are your feet firmly planted? Are the undersides of your thighs near your knees free of pressure?
Typing Style Are you training yourself to lighten up when you find you are pounding on the keys? If you are not a touch typist, have you been taking typing lessons? Are you training your fingers to relax when they become tense? Do you use your whole arm to reach for keys not located near the home row? Keyboard and Is your keyboard positioned directly in front of you?
Notebook Do you change postures frequently? Computing Do you avoid resting your wrists on your thighs while typing? To avoid neck fatigue when using the computer on a sofa or bed, do you avoid reclining too far? Where possible, have you tried using a full-size keyboard and detached pointing device, such as a mouse or trackball, with your notebook computer? Similarly, have you tried using a full-size monitor? General...
Electrical and Mechanical Safety Information Introduction Compaq products are designed to operate safely when installed and used according to general safety practices. The guidelines included in this section explain the potential risks associated with computer operation and provide important safety practices designed to minimize these risks.
Installation Compaq products operate safely when used according to their marked electrical ratings Requirements and product usage instructions. Use facilities that comply with the following electrical codes to ensure the safe operation of Compaq products: In the United States, operate the product in commercial or residential structures that have electrical installation in compliance with American National Standards Institute/National Fire Protection Association (ANSI/NFPA) 70, United States National Electric Code, or ANSI/NFPA 75, Protection of Electronic Computer/Data...
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There are noticeable signs of overheating. The product does not operate normally when you follow the operating instructions. Servicing Except as explained elsewhere in the Compaq documentation, do not service any Compaq product yourself. Opening or removing covers that are marked may expose you to electric shock.
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Power sources The product should be operated only from the type of power source indicated on the product’s electrical ratings label. If you have questions about the type of power source to use, contact your Compaq authorized service provider or local power company. For a product that operates from battery power or other power sources, refer to the operating instructions included with the product.
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Protective attachment plug In some countries, the product cord set may be equipped with a wall plug having overload protection. This is a safety feature. If the plug needs to be replaced, be sure the Compaq authorized service provider uses a replacement plug specified by the manufacturer as having the same overload protection as the original plug.
Hot surfaces Allow the equipment’s internal components and hot-pluggable drives to cool before touching them. Object entry Never push a foreign object through an opening in the product. Precautions for In addition to the general precautions described earlier in this section, be sure to Portable observe the following precautions when operating a portable computer product.
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Accessories and options Installation of accessories and options in safety interlocked areas should performed only by individuals who are qualified in servicing computer equipment and trained to deal with products capable of producing hazardous energy levels. Products with casters Products provided with casters should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the product to overturn.
Extend only one component at a time. The rack may become unstable if more than one component is extended. Use caution when pressing the component rail release latches and sliding a component into the rack. The slide rails could pinch your fingers. Do not overload the AC supply branch circuit that provides power to the rack.
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In addition to the general precautions described earlier in this section, be sure to observe the following precautions when operating telecommunications and network equipment. Failure to observe these precautions could result in fire, bodily injury, and damage to the equipment. Do not connect or use a modem or telephone (other than a cordless type) during a lightning storm.
Antenna This reminder is provided to call the CATV (cable television) system installer’s Grounding attention to Section 820-40 of the NEC (National Electrical Code), which provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical.
Precautions for In addition to the general precautions described earlier in this section, be sure to observe the following precautions when operating telecommunications and network Products with equipment. Failure to observe these precautions could result in fire, bodily injury, and Modems, damage to the equipment.
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Compliance with CDRH Regulations The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration implemented regulations for laser products on August 2, 1976. These regulations apply to laser products manufactured from August 1, 1976. Compliance is mandatory for products marketed in the United States.
For More Information If you want more information about arrangement of work space and equipment or safety standards, consult the following references: “American National Standard for Human Factors Engineering of Visual Display Terminal Workstations,” ANSI/HFS Standard No. 100-1988. Human Factors Society, Inc., P.O.
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International Standards Organization (ISO) Central Secretariat International Organization for Standardization 1, rue de Varembé Case postale 56 CH-1211 Genève 20, Switzerland TEL: +41 22 749 01 11 FAX: +41 22 733 34 30 http://www.iso.ch http://www.iso.ch/infoe/stbodies.html EMAIL: central@iso.ch National Safety Council Library 1121 Spring Lake Dr.
Government Approvals Chapter 2 European Union Notice Products with the CE marking complies with Telecommunication Terminal Equipment and Satellite Earth Station Equipment (TTE & SES) Directive (98/13/ EC), the EMC Directive (89/336/EEC), and the Low Voltage Directive (73/23/EEC) issued by the European Community. Compliance with these directives implies conformity to the following European Norms or Regulations (the equivalent international standards and regulations are in brackets):...
Federal Communications Commission Notice This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Declaration of Conformity for Products Marked with the FCC Logo (United States Only) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Telecom Network Approvals These two icons and associated statements may be found on desktop and mini-tower computers. They are intended to communicate how to access the telecommunications regulatory approval information for your product. On notebook computers, the approval information will appear on the bottom of the computer. As an alternative to viewing the approval information on your product, country approval information may also be found on the Compaq Web site.
An FCC Compliant 6-position modular plug is provided with this equipment. This equipment is designed to be connected to the telephone network or premises wiring using a compatible 6-position modular jack that is FCC Part 68 Compliant. If your telephone equipment causes harm to the telephone network, the telephone company may discontinue your service temporarily.
Canadian Regulations Governing the Use of Modems Notice: The Industry Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational, and safety requirements. The department does not guarantee the equipment will operate to the user’s satisfaction. Before installing the equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company.
U.K. BABT Users Notice (SupraExpress 56i Pro Global Modem - Desktop Products Only) The modem is intended for only use in the Compaq Internet PC. For the purposes of BABT approval, the modem is classified as a host-independent product. Telephone The modem is suitable for connection to the Public Switched Telephone Network Network (PSTN) direct exchange lines and relevant branch systems (PBXs).
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This apparatus has been approved for the following facilities: Connection to direct exchange lines providing DTMF signaling Connection to compatible PBXs providing DTMF signaling Operation in the absence of proceed indication, selectable by user Call progress monitoring functions Data modem functions Auto-dialing functions Auto-answering functions Any other usage will invalidate the approval of the apparatus, if as a result, it then...
Several options are available for auto-answering operation. The default setting is for two incoming rings. This is the recommended setting for normal operation by most computer users. Auto Dialing When entering telephone numbers, ensure that the number that appears on the screen with the Modem is correct before beginning to dial.
Brugerinstruktioner i overensstemmelse med danske krav Opkaldskoder P Compaq-modemet SupraExpress 56i Pro global modem understøtter ikke impulssignalering. Både opkaldskode P (impulssignalering) og T (tonesignalering) og T tvinger modemet til at anvende tonesignalering. Speciale gebruiksinstructies voor Nederland Aansluitfactor Het modem is geschikt voor aansluiting op het openbare geschakelde telefoonnetwerk en op (analoge) telefooncentrales binnen bedrijven en instellingen.
New Zealand Modem Statements The grant of a Telepermit for any item of terminal equipment indicates only that Telecom has accepted that the item complies with minimum conditions for connection to its network. It indicates no endorsement of the product by Telecom, nor does it provide any sort of warranty.
Caller identification (which occurs between the first and second ring cadences) is not destroyed. This equipment does not fully meet Telecom’s impedance requirements. Performance limitations may occur when used in conjuction with some parts of the network. Telecom will accept no responsibility should difficulties arise in such circumstances. This equipment should not be used under any circumstances which may constitute a nuisance to other Telecom customers.
The power cord must be rated for the product and for the voltage and current marked on the product’s electrical ratings label. The voltage and current rating of the cord should be greater than the voltage and current rating marked on the product. In addition, the diameter of the wire must be a minimum of 0.75 mm the length of the cord must be between 5 feet (1.5 m) and 6.5 feet (2 m).
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The CD drive is classified as a Class 1 laser product. This label is located on the outside of the CD drive: Laser Type Wavelength Divergence Angle Output Power Polarization Numerical Aperture Å Å Å Å WARNING: Only authorized technicians trained by Compaq should attempt to repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module-level repair.
Using the Computer Å Å Å Å WARNING: A very small portion of the population may experience epileptic seizures when viewing certain kinds of flashing lights or patterns that are commonly present in our daily environment. These persons may experience seizures while watching some kinds of television pictures or playing certain games, including games played on the Internet PC.
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Component Manufacturing Site Modem Regulation Statement Patent Information Power Supply Caution Grounding Information Voltage Ratings Agency Approvals 2-16 Typical Agency Label Government Approvals...
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Typical Agency Label Government Approvals Component Manufacturing Site Modem Regulation Statement Patent Information Power Supply Caution Grounding Information Voltage Ratings Agency Approvals 2-17...
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Energy Agency labels are on the back of the computer. For examples of typical agency labels, refer to the Safety section. Compliance Energy Star Compliance The Energy Star logo is your assurance that your computer is in compliance with the EPA Energy Star Computers Program 2.0 guidelines for energy efficiency.