Module Configuration; Set Up The Data Rate - Quantifi Photonics BERT 1005 Series User Manual

Bit Error Rate Tester | BERT 1005

Module configuration

Before starting to use the BERT product to perform error detection or pattern generation, ensure that
the instrument is configured correctly.
8.1.1

Set up the data rate

Each BERT product has an integrated, low noise, fractional clock synthesizer, which can set the relevant
frequency based on the data rate that has been set. A list of commonly used data rates has been
programmed and stored inside the product, with the relative frequency calibration files for optimal
frequency accuracy and lowest RMS clock jitter.
To set the standard data rate, click the STANDARD DATA RATE drop-down list and select an appropriate
data rate value.
To set an arbitrary data rate for pattern generation or error detection, type an appropriate value in the
ARBITRARY DATA RATE OF PPG or the ARBITRARY DATA RATE OF ED fields. In this case, the value of
the STANDARD DATA RATE field automatically changes to <ARBITRARY>, as shown below. You can also
use the arrows to increase or decrease the value.
The arbitrary data rate must be within the valid range. The parameter can also be set to the MIN (1.25
Gbps) and MAX (14.5 Gbps) value by clicking the dropdown in the name of the parameter.
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