DS DS/EN 61280-2-4
DS DSEN 61280-2-4 1998-OCT-01 Fbre optc communcaton subsystem basc test procedures - Part 2-4 Test procedures for dgtal systems - Bt-rate tolerance measurement
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The object of this test procedure is to measure the bit-rate tolerance of the fibre optic digital subsystem under specified conditions. Bit-rate tolerance is defined by the clock frequency range of the fibre optic digital subsystem which meet the specified bit error ratio.