Spirent DLS

For accurate reproduction of last-mile conditions in the lab

Extensive range of wireline simulation and impairment generation solutions

Working closely with various standards authorities, Spirent has developed a series of noise and impairment generators that provide the accurate and repeatable wireline simulation testing platform you need to comply with industry standard test specifications and verify that your products, services, and applications can all deliver a high Quality of Experience (QoE) for the end user.

Key highlights

Key highlights

  • Solutions for ADSL, ASDL2, ADSL2+, HDSL, HDSL2, HDSL4, SHDSL, ISDN, DSL, VDSL and VDSL2, G.Fast
  • Solutions to meet the requirements of standards bodies: ATIS, Broadband Forum, ETSI and ITU-T
  • Single and multi-line simulators
  • Simulate correct insertion loss, delay/phase and input impedance
  • Test xDSL performance, conformance and interoperability standards
  • Insert xDSL physical layer noise impairments


  • Accurate, repeatable line simulation and noise generation for testing in accordance with conformance and performance standards
  • High degree of test equipment accuracy and repeatability means a high level of confidence after deployment
  • Save time and access a library of standards-defined noise packages
  • Ensure consistency of results by using the same product as the vast majority of NEMs, chipset vendors, and service providers around the world
Spirent TestCenter Automation

Automation solutions

By removing the repetitiveness of standard tests, developers and testers are able to focus on new functionality while still providing coverage of existing features. Spirent’s automation solutions are designed around best practices so once a test is created it can be reused saving time in automating future tests.

What to test

Conformance & performance

and performance

Accurate and repeatable testing platform that complies with industry standard test specifications

chipset features

New chipset features
such as DSM and INP

DLS-5800 / DLS-5410DC allow time-varying noise and hardware-generated REIN/PEIN/SHINE noise

automated testing

Simultaneous testing
via automation

Provides extensive testing for secure network communication, vulnerability assessment with thousands of up-to-date attack profiles, user authentication and advanced IPsec, SSL and RADIUS

Customize wireline

Customize wireline and
noise characteristics

Easy to use Control Software, ability to accept remote commands allowing you to write your own scripts


Precision lab-grade
wireline simulation

Highly accurate reproduction of all characteristics including attenuation, group delay/phase, impedance

High density testing

High density testing via multiline simulators

Production grade wireline simulators feature lower cost per port and offer multiline configurations


Product type

Product name


Integrated systems

North American VDSL2 wireline and noise testing solution

European VDSL2 wireline and noise testing solution

North American ADSL2++, TR-067 and TR-100 testing

European ADSL2++, TR-067 and TR-100 testing

Wire simulators

European xDSL Wireline Simulator

The DLS-6900AWGN is a single line production-grade wireline simulator in a compact 2U rackmountable chassis. It simulates both PE04 and 26AWG cable models in a single chassis and is suitable for VDSL2/VDSL/ADSL2++/ ADSL2+/ADSL2/ADSL and SHDSL production and verification testing

High density multi-line production wireline simulator in a 6U rack-mountable chassis, suitable for VDSL2/VDSL/ADSL2++/ ADSL2+/ADSL2/ADSL and SHDSL production and verification testing

High density multi-line production wireline simulator in a 6U rack-mountable chassis, suitable for VDSL2/VDSL/ADSL2++/ADSL2+/ ADSL2/ADSL and SHDSL production and verification testing

Noise generators

G.FAST noise impairment generator xDSL wireline and noise testing solutions

xDSL next-generation noise testing solutionM/p>


This Service Modeling and Noise Tool is an industry first, it provides two primary functions, DSL performance predictor and DSL noise file development for performance testing

This XDSL Custom Noise File Tool provides users with the ability to develop their own customized noise files

This Impulse Spiker Noise Creation Tool allows easy creation and customization of impulse noises


Spirent’s Education and Implementation Services represent a suite of offerings specifically designed to address the critical needs of customers who are new to Spirent products, who want to assure their equipment performs at its optimal capabilities, as well as those who need to take their test teams to a higher level of testing expertise