Criteria Supporting Feature Remarks and Explanations 407.2 Contrast. Where provided, keys Not Applicable and controls shall contrast visually from background surfaces. Characters and symbols shall contrast visually from background surfaces with either light characters or symbols on a dark background or dark characters or symbols on a light background. 407.3 Input Controls. At least one See 407.3.1, 407.3.2, and input control conforming to 407.3 407.3.3. shall be provided for each function. 407.3.1 Tactilely Discernible. Input Not Applicable controls shall be operable by touch and tactilely discernible without activation. 407.3.2 Alphabetic Keys. Where Not Applicable provided, individual alphabetic keys shall be arranged in a QWERTY-based keyboard layout and the “F” and “J” keys shall be tactilely distinct from the other keys. 407.3.3 Numeric Keys. Where Not Applicable provided, numeric keys shall be arranged in a 12-key ascending or descending keypad layout. The number five key shall be tactilely distinct from the other keys. Where the ICT provides an alphabetic overlay on numeric keys, the relationships between letters and digits shall conform to ITU-T Recommendation E.161 (incorporated by reference, see 702.7.1). Where a keyboard Not Applicable 407.4 Key Repeat. with key repeat is provided, the delay before the key repeat feature is activated shall be fixed at, or adjustable to, 2 seconds minimum. 407.5 Timed Response. Where a Not Applicable timed response is required, the user shall be alerted visually, as well as by touch or sound, and shall be given the opportunity to indicate that more time is needed.
Criteria Supporting Feature Remarks and Explanations 407.2 Contrast. Where provided, keys and controls shall contrast visually from background surfaces. Characters and symbols shall contrast visually from background surfaces with either light characters or symbols on a dark background or dark characters or symbols on a light background. Not Applicable 407.3 Input Controls. At least one input control conforming to 407.3 shall be provided for each function. See 407.3.1, 407.3.2, and 407.3.3. 407.3.1 Tactilely Discernible. Input controls shall be operable by touch and tactilely discernible without activation. Not Applicable 407.3.2 Alphabetic Keys. Where provided, individual alphabetic keys shall be arranged in a QWERTY-based keyboard layout and the “F” and “J” keys shall be tactilely distinct from the other keys. Not Applicable 407.3.3 Numeric Keys. Where provided, numeric keys shall be arranged in a 12-key ascending or descending keypad layout. The number five key shall be tactilely distinct from the other keys. Where the ICT provides an alphabetic overlay on numeric keys, the relationships between letters and digits shall conform to ITU-T Recommendation E.161 (incorporated by reference, see 702.7.1). Not Applicable 407.4 Key Repeat. Where a keyboard with key repeat is provided, the delay before the key repeat feature is activated shall be fixed at, or adjustable to, 2 seconds minimum. Not Applicable 407.5 Timed Response. Where a timed response is required, the user shall be alerted visually, as well as by touch or sound, and shall be given the opportunity to indicate that more time is needed. Not Applicable
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