Original: It does not use standard Braille; rather, the feature uses a system developed in consultation with blind and visually impaired Canadians after research indicated that not all potential users read Braille.
Simplified: They can be easily identified by visually impaired people; this' tactile feature 'does not use standard braille but, instead, a system developed in consultation with blind and visually impaired Canadians after research indicated that not all potential users read braille.