NetQuest A-Series

Test and monitoring access for ATM networks

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The OptiCop Converger family of monitoring access optimizers provides out-of-band, high bandwidth, any-to-any data monitoring access for legacy and converged networks in Carrier, Enterprise, and Government applications. The non-intrusive access optimizes tool port usage and enables network operators to implement management and assurance strategies related to the overall performance of the services being delivered, without degrading the service or distorting the results. While the main features and functions are the same across all OptiCop Convergers, each series within the family supports different transport technologies and line speed.

ATM transport networks and their inherent quality of service play an important role in today’s multi-service networks. As networks continue to converge and traffic migrates from cell to packet, the monitoring of ATM backbones used in conjunction with IP and TDM infrastructure presents a unique set of challenges. Features like circuit emulation and Inverse Multiplexing over ATM (IMA) make monitoring expensive and, in some cases, impossible since ATM support is often not available in next generation monitoring solutions. OptiCop Converger’s ability to terminate and convert ATM cell traffic provides a means to extract traffic of interest and leverage existing investments in test and monitoring tools.

Key Features

Monitoring Access

The A-Series OptiCop Converger systems can be configured to meet the most demanding applications, with the ability to monitor SONET/SDH and PDH ATM circuits ranging from T1/E1 to OC3/STM-1 through OC12/STM-4. Inverse multiplexing is also supported on either 256 discrete T1/E1 interfaces or on up to 512 T1/E1 circuits embedded within SONET/SDH pipes. With up to 24 SONET/SDH network/tool interfaces, the A-Series OptiCop Converger can monitor multiple broadband circuits in either half or full duplex scenarios and will operate in conjunction with Automatic Protection Switching, ensuring monitoring applications always have the access they need.


The A-Series OptiCop Converger is available in two models, the A-1200 and the A-2400, supporting 12 and 24 optical/copper interfaces respectively. Optional support for up to 256 discrete T1/E1 interfaces is offered on the A-1200. The table below illustrates example port configurations available.

  • Load balancing to overcome tool limitations
  • VPI/VCI aggregation and IMA support
  • Interface conversions to leverage existing and next generation tools
  • Remote monitoring and tool sharing to reduce CAPEX