Avago Technologies announced enhancements to its Versatile Link Plastic Optical Fibre (POF) product family for industrial communications and control links for industrial applications.
Designed for robust industrial networking applications, communications over POF offers key benefits versus copper-based implementations. Since optical fibre has no metal in its construction, the communication link has infinite isolation between nodes and, since light is used to transmit the signals, there are no effects from or creation of electromagnetic interference (EMI) on the transmission line.
There are additional challenges of copper cables caused by the longer assembly time and labour costs due to the steps needed for cable preparation – stripping multiple layers of insulation, tinning the strands, multiple wires to solder and terminate the foil shield. Testing an assembled copper cable is also slightly more complex than POF as copper requires tests for continuity, shorts, opens and breakdown voltage.
The new Versatile Link products from Avago offer system designers integrated digital logic (TTL) interfaces for both transmitter and receivers. Integrated circuits within the components manage the translation between electrical and optical signals on both ends. They support 3,3 V and 5 V power supply options.
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