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5.5.1 BER SETUP
Figure 5-8 BER SETUP screen
• Interface (F2)
Selects the TS input for BER measurement.
Parallel Use the SPI connector.
Serial (2 Wire) Use both [CLOCK] and [DATA] connectors in the SERIAL
INPUT group.
Serial (4 Wire) Use all of four connectors in the SERIAL INPUT group.
• Value Input Select (F5)
Selects the item to be set.
Upper Sets the upper threshold value (close to 0) in GO/NO-GO
judgement mode.
Lower Sets the lower threshold value (close to 1) in GO/NO-GO
judgement mode.
(Settable range: 0.00E-0, 1.00E-9 to 9.99E-1)
Measurement Cycle The measurement cycle can be set in 0.1 second steps.
The values can be directly entered by using the numeric keypad.
(1) When no signal is input to the SPI connector or there is asynchronous error on the TS,
the alarm lights on the top screen.
(2) When measurement starts, the top screen and BER screen display the measurement
value. "GO" is displayed when measurement value is with the threshold value;
"NO-GO" is displayed for outside the threshold.
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