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Bit Error Ratio Test (BERT) Solution

Make the next leap forward with Keysight BERTs!

Keysight offers the broadest choice of BERTs - covering affordable manufacturing test and high-performance characterization and compliance testing up to 32 Gb/s

Keysight's Bit Error Ratio Test solutions allow the most accurate and efficient design verification, characterization, compliance and manufacturing test of high-speed communication ports for today's ASICs, components, modules and line-cards in the semiconductor, computer, storage and communication industry.

Keysight offers the broadest portfolio with four BERT families that address a variety of speed classes, usability concepts, and flexibility as well as application specific stimulus and analysis tools. All BERTs provide cost-effective and efficient in-depth insight into critical measurement tasks for today's and next generation devices with gigabit interfaces.

BERTs are used to test and characterize many high-speed digital interfaces:

QPI, FB-DIMM, PCI Express®, SATA,/SAS USB, Thunderbolt, DisplayPort, HDMI, MHL, MIPI, UHS-II, Fibre Channel, XAUI/10Gb Ethernet, CAUI/100GbE, CEI and other backplanes, XFI/XFP/SFP+/CFP modules, OTN, and PON-OLTs, Serdes, DAC, ADC, etc.


under test

Data rate Application
Keysight BERT/AWG
For R&D
Characterization, Compliance
For Manufacturing

High-speed serial
receiver in computer and mobile buses

<16Gb/s QPI, HT, PCI Express, SATA,
data rates < 10 Gb/s,
calibrated jitter, SSC, ISI and S.I.,
clock recovery, pattern sequencing
J-BERT M8020A**,
J-BERT N4903B, M8030A* or
ParBERT 81250*
<10Gb/s HDMI, MHL, MIPI C-PHY/ D-PHY Data rates < 10G, 3-wire, multi-level signals M8190A, M8195A,
Backplanes, SERDES, AOC 10Gb/s - 28Gb/s CEI, IB, CAUI, 10GBASE-KR/-KR4 data rates > 10 Gb/s, de-emphasis,
x-talk, PRBS
J-BERT M8020A, M8061A, N4960A, N4965A,
J-BERT N4903B, N4877A
PAM-4 interconnects chip-to-chip, chip-to-module, backplanes 12/25/56 GBaud
100GBASE, 400GBASE, OIF-CEI-56G PAM-4 patterns, non-linear eyes, de-emphasis M8195A, M8196A n/a
Optical transceivers
and sub-components:
0.6 to 64Gb/s
>25Gb/s 40G/100GbE, 32GFC, CFP data rates > 16Gb/s ,clean signals, PRBS N4960A, N4967A,
J-BERT M8020A/N4903B+ M8061A/N4877A or M8062A
N4960A, N4967A
10Gb/s 10G/40GbE, PON, OTN, 8G/16GFC, SFP+, QSFP data rates 3 to 15Gb/s,
PRBS optical stress & sensitivity
J-BERT M8020A/N4903B, N4917A,
M8030A* or ParBERT*
< 4Gb/s 1GBASE, XFP, PON, 1G/2G/4G FC data rates < 3.5Gb/s,
fast bit synchronization, PRBS or framed bursts
ParBERT 3.3G

*for multi-lane
** up to 4 lanes

J-BERT awards: J-BERT's technology leadership has been honored by our customers and key technical publications with several product awards. See the full list of J-BERT awards here

Download the Lightwave Catalog

  • M8000 Series M8000 Series 

    M8000 Series

    • Highly integrated BERT
    • Scalable and expandable
    • Accurate and reliable results

  • ParBERT 81250 ParBERT 81250 

    ParBERT 81250

    • Modular BERT Platform
    • Accurate characterization of multi-port gigabit devices
    • Various data ranges
    • Up to 64 output and input channels
    • Automated test solutions

  • Serial BERTs Serial BERTs 

    Serial BERTs

    • Parametric test capabilities
    • Widest range of products in the industry
    • Operating at up to 40 Gb/s
    • Excellent signal integrity

  • Accessories and supplementary products for BERTs and Pulse Pattern Generators Accessories and supplementary products for BERTs and Pulse Pattern Generators 

    Accessories and supplementary products for BERTs and Pulse Pattern Generators

    • Extensive range of accessories and supplementary products
    • For use with ParBERT, Serial BERTs and Pulse Pattern Generators
    • Attenuators, cable kits, multiplexers and ISI channels amongst others

  • Applications for BERTs and Pulse Pattern Generators [Discontinued] Applications for BERTs and Pulse Pattern Generators [Discontinued] 

    Applications for BERTs and Pulse Pattern Generators [Discontinued]

    • High-speed digital computing and backplane test
    • Optical transceiver test solutions
    • Solutions for R&D and manufacturing
    • Test Automation software for compliance and characterization
    • PCIe, USB, DisplayPort, MIPI etc

  • Electrical and Optical Clock Data Recovery Solutions Electrical and Optical Clock Data Recovery Solutions 

    Electrical and Optical Clock Data Recovery Solutions

    • Data rate range from 50 Mb/s to 32 Gb/s
    • Wide bandwidth instrumentation-grade
    • Clock data recovery and demultiplexer 1:2
    • Optical pick-off for single mode and multimode

Bit Error Ratio Test (BERT) Solutions [Discontinued]
Product information and resources for discontinued bit error ratio testers and accessories.