Signal-quality analysis for next-generation transmission technologies: Page 2 of 6

June 28, 2018 //By Alessandro Messina, EMEA Wireline Business Marketing Senior Manager, Anritsu
Signal-quality analysis for next-generation transmission technologies
The recent spread of smartphones and cloud computing applications is driving exponential growth in traffic at data centres. To transfer these large data volumes at high speed, Ethernet communications standards are progressing with the deployment of 100GbE equipment, with 400GbE already being targeted for next-generation standards.

As a result, both network equipment manufacturers and the semiconductor industries are becoming focused on the integration of high-speed Ethernet and high-speed serial bus connectivity on the same boards and chipsets, thus requiring validation capabilities for all the related technologies.

From a test & measurement viewpoint, the most important focus today is the need for signal-integrity evaluation for research & development on PAM4 systems in the semiconductor and optical module industries, along with capability to test multiple signal channels simultaneously, and with additional test functions in areas such as PAM emphasis, signal equalisation, and jitter tolerance verification (Figure 1).


Figure 1: Market sectors and technology trends:
Telecom: baud-rate 56G, PAM4 modulation, multi-channel and BER with equalisation and FEC;
Server/storage: Merged 100GbE and BUS Link Training Technology for electrical short reach;
HS-BUS: High bit rate (PCIe-G4) for server backplane, and supporting USB Type-C and TBT-3 Ifs.

Design category: 

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