Braille pattern dots-123456

The Braille pattern dots-123456 ( ) is a 6-dot braille cell with all six dots raised, or an 8-dot braille cell with both dots in the top three rows raised. It is represented by the Unicode code point U+283F, and in Braille ASCII with the equal sign.
Unified Braille.
In unified international braille, the braille pattern dots-123456 is used to represent a voiced dental/alveolar fricative or aspirant, such as /ð/, /z/, or /dʰ/ when multiple letters correspond to these values, and is otherwise assigned as needed.
Other braille.
Braille pattern dots-123456 is also used for the tactile feature on Canadian banknotes.
Plus dots 7 and 8.
Related to Braille pattern dots-123456 are Braille patterns 1234567, 1234568, and 12345678, which are used in 8-dot braille systems, such as Gardner-Salinas and Luxembourgish Braille.
related 8-dot kantenji patterns.
In the Japanese kantenji braille, the standard 8-dot Braille patterns 235678, 1235678, 2345678, and 12345678 are the patterns related to Braille pattern dots-123456, since the two additional dots of kantenji patterns 0123456, 1234567, and 01234567 are placed above the base 6-dot cell, instead of below, as in standard 8-dot braille.
Kantenji using braille patterns 235678, 1235678, 2345678, or 12345678.
This listing includes kantenji using Braille pattern dots-123456 for all 6349 kanji found in JIS C 6226-1978.