dupleks

Dupleks, often rendered as duplex in English, is a term used in several languages to denote a twofold or two-unit form. Its exact meaning varies by field, but the core idea is a dual structure or capacity.

In real estate and architecture, a dupleks is a dwelling divided into two separate housing units. The units may be arranged one above the other or side by side and often have separate entrances and utilities. The term can indicate either two tenants sharing a building or two distinct residences sold or rented separately within a single structure.

In telecommunications and data transmission, duplex describes bidirectional communication. Full duplex enables simultaneous two-way transmission, while half duplex allows alternating directions. Some languages or manufacturers use the localized spelling dupleks in documentation or product labeling.

In printing, duplex or dupleks printing refers to printing on both sides of a page, enabling double-sided documents. Modern duplex printers automate this process.

In metallurgy, duplex (dupleks in some languages) refers to duplex stainless steel, an alloy with two phases—ferrite and austenite—that provides high strength and corrosion resistance. The term highlights the material’s dual-phase microstructure rather than a single crystal phase.