Chapter 7: Hardware Aspects of ICT

  • 701  General
  • 702  Reach Ranges for Installed or Free-Standing ICT
  • 703  Standard Connections
  • 704  Text, Images of Text, and Symbols for Product Use

701 General

701.1 Scope.  The provisions of this chapter shall apply where required by Chapter 1, or where referenced by a requirement in this document.

702 Reach Ranges for Installed or Free-Standing ICT

702.1 General.  Reach ranges for controls and keys on installed or free-standing non-portable ICT intended to be used in one location shall conform to 36 CFR Part 1191 Appendix D, Section 308.

Advisory 702.1 General.  An example of free-standing, non-portable ICT is a multifunction machine which can transmit, copy, scan, or fax materials.  It is accessed either by someone approaching it and placing materials upon it, or by sending print jobs from a workstation.

703 Standard Connections

703.1 General.  When connection points are provided, at least one of each type of connection shall conform to industry standard non-proprietary formats.

Exception:  This provision does not apply to products with closed functionality.

Advisory 703.1 General..  The intent of this provision is to ensure compatibility with assistive technologies by requiring the use of standard connections on products.

Examples of connections points include expansion slots, ports, and connectors for cables.

Industry standard non-proprietary formats include wireless connections to products.  Examples of wireless connections include infrared (IR) and Bluetooth.

704 Text, Images of Text, and Symbols for Product Use

704.1 General.  Text, images of text, and symbols provided for product use shall conform to 704.

704.2 Accessible Mode for Text, Images of Text and Symbols.  At least one mode of operation that conforms to Chapter 5 (Electronic Documents) shall be provided for text, images of text, and symbols provided for product use.

Exceptions:  1.  When not provided for product use, safety labels, regulatory labels, logos, and certifications shall not be required to conform to 704.2.

2.  Captions shall not be required to conform to 704.2.

3.  Information for product use that is conveyed in a way that is uniquely tactilely discernible through shape shall not be required to conform to 704.2.

4.  Information for product use that is conveyed in a way that is uniquely audibly discernible through tone or speech shall not be required to conform to 704.2.

5.  Electronic text in embedded firmware or installed software that is not electronic text for product use shall not be required to conform to 704.2.

Advisory 704.2 Accessible Mode for Text, Images of Text and Symbols.  An example of text provided for product use is a user manual.  To meet the requirements of this provision, the user manual could be stored in an accessible electronic file on a product.

An example of images of text provided for product use is an on-screen menu for adjusting picture quality on a television.  To meet the requirements of this provision, the on-screen menus could be vocalized by the audio processor of the television.

Advisory 704.2 Accessible Mode for Text, Images of Text and Symbols Exception 3.  Products may be labeled with symbols rather than text.  These symbols are sometimes raised and uniquely tactilely discernible.  An example is a portable computer with ports that are identifiable by shape and tactile markings.  Another example is a numeric keypad with a nib on the 5 key.

704.3 Attributes and Contrast Ratio for Images of Text on Hardware.  When images of text are provided for product use on hardware and they are the only visual means of conveying information, the images of text shall conform to 704.3.1 and 704.3.2.

Exception:  Images of text for secondary functions shall not be required to conform to 704.3.

Advisory 704.3 Attributes and Contrast Ratio for Images of Text on Hardware.  This provision applies to print and embossed text as well as electronic text that is not programmatically determinable.

Advisory 704.3 Attributes and Contrast Ratio for Images of Text on Hardware Exception.  Keyboard keys frequently have secondary and tertiary functions, such as the blue numbers on an embedded number pad of a portable computer.  The markings for such infrequently used keys are less prominent than the markings for primary functions in order to reduce visual clutter and confusion.

704.3.1 Text Attributes.  Characters in images of text shall be in a sans serif font.  Characters shall be 3/16 inch (4.8 mm) high minimum, based on the uppercase letter “I”.

704.3.2 Contrast Ratio for Images of Text.  Images of text shall have a contrast ratio of at least 3:1.

Advisory 704.3.2 Contrast Ratio for Images of Text.  This provision addresses background contrast and reflectance contrast.

Images of text that rely on reflectance contrast use ambient light for discernability.

Examples of ICT products with images of text that feature background contrast include LCD displays with a backlight, and devices with dark characters on a light background.

An example of a passively illuminated display is a keyboard with legends that requires reflectance contrast.