<s>
correspond	O
to	O
toggling	O
bits	O
in	O
the	O
ASCII	B-Protocol
keycode	O
.	O
</s>
<s>
The	O
ECMA-23	B-Protocol
layout	O
has	O
two	O
options	O
,	O
being	O
the	O
same	O
as	O
the	O
ISO	O
2530	O
or	O
the	O
ANSI-X4.14	O
bit-paired	B-Protocol
layout	O
.	O
</s>
