298 Chapter 9
BERT
Bit Error Rate Tester–Option UN7
• T1 is a firmware handling time measured from a Trigger event to the rising edge of a BER MEAS END
signal.
• T2 is a firmware handling time measured from the falling edge of a BER TEST OUT signal to the falling
edge of the BER MEAS END signal.
• T3 is a minimum requirement time measured from the falling edge of the BER MEAS END signal to the
next trigger event. T3 should be greater than 0 second.
The pulse output of the BER TEST OUT for the Nth-1 test result ends prior to the falling edge of the BER
MEAS END signal for the Nth measurement; so you can use this edge to start latching the Nth test result.
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