Test & Measurement

Oscilloscope firmware cuts test time and costs

3rd September 2018
Mick Elliott

Firmware downloads which will increase the PAM4 analysis function for Anritsu’s BERTWave MP2110ASampling Oscilloscope from 26Gbaud to 53Gbaud have been released enabling production and inspection of optical modules. As well as featuring both high-sensitivity and high-speed measurements, with this release the MP2110A will now support development and production-line inspection of next-generation QSFP-DD optical transceivers expected to be deployed in data centres.

As data traffic increases due to the spread of flat-rate video streaming and other cloud services, managing this growth requires the deployment of transmission-equipment interfaces that exceed speeds of 100 Gbit/s.

New generation 200/400 GbE interfaces start to appear, and use PAM4 technology instead of the older NRZ technology. Although current optical modules such as CFP8s use 26Gbaud PAM4 optical signals, future mass-produced QSFP-DD and OSFP modules will use 53Gbaud PAM4 optical signals.

The BERTWave MP2110A is an all-in-one measuring instrument with built-in multi-channel Bit Error Rate Tester (BERT) and Sampling Oscilloscope, supporting bit error rate (BER) measurements, Eye Mask tests, Eye pattern analyses, high sampling speed of 250kSample/s and low-noise (3.4μW) high-sensitivity O/E interface. The BERT and Sampling Oscilloscope are required instruments for evaluating optical modules used by optical communications systems.

As well as NRZ technology, the MP2110A also supports PAM4 signal measurements including TDECQ, which enable all-in-one quality evaluations of optical modules at speeds from 25 to 400 G. In addition, the MP2110A, thanks to its high-speed measurement and PAM4 analysis, will play a key role in improving optical module production-line productivity.

Moreover, adding 53Gbaud support for quality evaluation of next-generation optical modules helps cut capital equipment renewal costs.

The 53Gbaud analysis function added by this upgrade is included in the PAM4 signal analysis software option (MP2110A-095).

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