394 Keysight M8000 Series of BER Test Solutions User Guide
7 Setting up Patterns
IEEE 802.3 PRBS13Q
This pattern is defined in IEEE 802.3 clause 120.5.11.2.3.
1 Select PRBS13-1 from hardware PRBS generator or use the factory
pattern available at the following location:
Factory\IEEE\PRBS13Q_Lane0_bit
2 Choose Line Coding as PAM4.
3 Set Symbol Mapping to Gray Coded (Default).
For convenience additional lane 1 to lane 3 versions are stored at:
Factory\IEEE\PRBS13Q_Lane1_bit
Factory\IEEE\PRBS13Q_Lane2_bit
Factory\IEEE\PRBS13Q_Lane3_bit
These additional versions are intended for multi-lane applications and
using alternative seeds as defined in table IEEE 802.3 94-11.
IEEE 802.3 PRBS31Q
This pattern is defined in IEEE 802.3 clause 120.5.11.2.4.
1 Select PRBS31-1 from hardware PRBS generator.
2 In the block settings activate the Invert feature of the hardware PRBS
generator.
3 Choose Line Coding as PAM4.
4 Set Symbol Mapping to Gray Coded (Default).
IEEE 802.3 SSPRQ
The IEEE/SSPRQ_bit_SelectGrayCoded (120.5.11.2.3) pattern corresponds
to the pattern as defined in release 1.0 of the spec while
IEEE/SSPRQ_bit_SelectGrayCoded_D1p5 (120.5.11.2.5) pattern is the
version from Draft 1.5 of the spec. It is stored in a way that will output the
correct PAM4 symbols when Symbol Mapping is set to Gray Coded.
1 Select the factory patterns available at the following location:
Factory\IEEE\SSPRQ_bit_SelectGrayCoded
Factory\IEEE\SSPRQ_bit_SelectGrayCoded_D1p5
2 Choose Line Coding as PAM4.
3 Set Symbol Mapping to Gray Coded (Default).
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