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We use these extensively: http://vssmonitoring.com/products/traditional_tap.asp http://vssmonitoring.com/products/traditional_tap.asp I'm not sure how they wo

by tacoman 13y ago

We use these extensively: http://vssmonitoring.com/products/traditional_tap.asp http://vssmonitoring.com/products/traditional_tap.asp I'm not sure how they work, but the sales engineer said "mirrors". The fibre units are completely passive.