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8 bit pattern analysis and the gearbox, 8bit pattern analysis and the gearbox – EXFO PSO-200 Optical Modulation Analyzer User Manual

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Optical Modulation Analyzer

79

8

Bit Pattern Analysis and the

Gearbox

The following diagram illustrates the main steps and possibilities in bit
pattern analysis using the PSO-200 Optical Modulation Analyzer. With
compatible pattern modes, the powerful Gearbox tool allows you to define
precisely how your data stream is sent to the modulator and to obtain
detailed error rates.

Select Modulation

Select Input Pattern Mode

Repetitive (Unknown)

User-Defined Symbol Pattern

Standard PRBS

User-Defined Bit Pattern

Import symbol pattern and get SER information

Define Gearbox streaming alignment

Can also import bit pattern

Edit/import in application (MAPPING section only)

Can export symbol pattern

Define modulator input mapping and pattern details
Can obtain BER information

(Gearbox configuration file)

Edit in Notepad (MAPPING and SYMBOL sections)