Accra Road White Angle House Mezzanine floor Room 43 / 44
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A bidirectional SFP (BiDi SFP) is a fiber optic transceiver that sends and receives data over a single strand of optical fiber by using two different wavelengths (colours of light) — one for TX (transmit) and one for RX (receive). This is achieved using Wavelength Division Multiplexing (WDM) technology.
Normal SFPs: Usually use two fibres — one for transmit and one for receive.
BiDi SFPs: Use one fibre for both directions.