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BA-4000-L2 - BER tester with real traffic

Overview
Combined L1 BER tester and L2 traffic analyzer for 800G DR4/FR4/LR4 and 800G LPO transceivers

Key features

  • Superior hardware design: native electrical interface, excellent signal quality, clean eye diagram and low error floor
  • Layer 2 framed testing: delivers a real system view for L1 device under test (DUT) from L2 framed traffic
  • Layer 1 BERT: excellent signal quality alongside layer 2 testing
  • Real-time FEC analysis: testing of pre/post FEC BER, symbol error distribution and FEC margin
  • Powerful equalizer and channel simulator: powerful equalizer includes CTLE, 32 taps FFE and DFE. Ideal for LPO transceivers
  • Layer 2 testing: tests 800G DR4/FR4/LR4/ZR with framed L2 traffic

Highlights

Discover the BA-4000-L2

The BA-4000-L2, delivers a layer 2 framed signal to validate segmented FEC (DCO) and 200G per lane optic transceivers. Plus, its powerful equalizer and channel simulator are ideal for LPO testing.

Watch this short video introduction by EXFO’s Andrea Guglierame to learn more.

Powerful equalizer and channel simulator is ideal for LPO testing 

With LPO transceivers, no DSP is present to precondition or equalize the electrical signal, as is done in retimed optics. Therefore, any change in signal integrity on the host side is reflected onto the optical side and the more times the signal is handed off, the more potential for introduction of bit errors. Traditional transceiver testing techniques cant pick up this signal degradation so new, more powerful testing techniques are required. The BA-4000-L2 detects the presence of reflection, intersymbol interference (ISI) and FEC tail instability which are key performance indicators, capturing the presence of errors. Learn more. 

Segmented FEC (DCO) and concatenated FEC (200G/lanes) architectures require L2 framed traffic  

In the latest generation of optics and transceivers, the forward error correction (FEC) encoding and decoding function is moving from the host side to within the optical transceiver. With this evolution in functionality, transceivers are no longer agnostic electrical-to-optical converters and therefore FEC testing is required for applicable transceivers. The BA-4000-L2 delivers a layer 2 framed signal to validate DCO and 200G per lane optical transceivers.