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Transport / Fronthaul / Backhaul / Transponder
Transponders are interconnected units associated with the RRU or the BBU and play a large part in the transport of the 5G signal. The first half of the transport procedure is called fronthaul, where fiber optic signals from the RRU are fine-tuned by the transponder using Wavelength Division Multiplexing (WDM) techniques and then passed on to the BBU and edge servers that are part of the CRAN. The latter half of the procedure where the signals from the CRAN unit are passed on by optics or wireless to the core and further on to the data center is called Backhaul. Amphenol provides connectors that go inside the transponders and routers that assure a smooth run of the 5G transport.
