Method and devices for generating a parallel binary representation of an HDBaseT® physical modulation. The method and devices include generating series-consisting-4-binary-symbols, each represents a physical modulation of one HDBaseT compliant symbol. The series-consisting-4-binary-symbols are transmitted over eight binary channels, where each series-consisting-4-binary-symbols is transmitted serially over one of the binary channels using transmission rate that is twice the HDBaseT rate.