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What is the use of Profibus black box 490NAE91100.

The unit 140NAE91100 contains the 140CRP81100 card and the 467NHP811DP PCMCIA card. It operates simultaneously as a signal converter and an optical isolator for the Profibus network.

It converts data on the PCMCIA card to a Profibus standard signal while performing the electrical adaptation necessary for correct operation of the bus.
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