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Newsletter: GL Enhances OC-3/STM-1 Analyzer Hardware & Software

Welcome to another August 2009 issue of GL's Newsletter providing information on the latest enhancements introduced to our OC-3 / STM-1 Analyzer - a feature rich test instrument for testing SONET and SDH signals.


The Ultra OC-3 / STM-1 Card plugs into a PCI PC expansion slot for analyzing, testing, simulating, and monitoring OC-3 / STM-1 and STS-1 / STM-0 signals.

The Card can add and drop T1, E1, T3, STS-1/STM-0 and bulk filled signals to and from an OC-3 / STM-1 signal or T1 and E1 signals to and from an STS-1/STM-0 signal. The card can also generate BERT patterns, internally in all framing modes and perform stress test and performance analysis. SDH and SONET alarms can be monitored and logged in real time.

Accompanying Windows NT/2000/XP software affords easy operation. SONET/SDH Alarm generation, Error injection and detection capability, overhead monitoring features and its full compatibility with GL's T1, E1 and T3 test products, makes GL's Ultra OC-3 / STM-1 Analyzer a complete SONET and SDH testing solution.

It is ideally suited for installation, maintenance, commissioning, verification and manufacturing of SONET/SDH transport networks and network equipments.

OC-3 / STM-1 Analyzer Client-Sever Software

Scripting enhancement to GL's OC-3 / STM-1 Analyzer was added to provide, automation and remoting capabilities to the OC-3 / STM-1 analysis platform. The client-server framework provides a flexible and extensible solution for the varied testing needs of our customers. This enhancement will enable - in addition to providing the capability for automation and remoting - the development of customized automation clients through API level integration.

OC-3 / STM-1 Server (OC3Server.exe) is the application that allows you to control a GL Communications' OC-3 / STM-1 Analyzer test set via TCP/IP. It runs under Microsoft Windows NT, 2000, and XP.

GL Client is a Windows-based application that is distributed with OC-3 / STM-1 Server as a sample client application. It runs under Microsoft Windows 95, 98, NT, 2000, and XP.

The client-server application helps configuring SDH and SONET parameters, Signal Mapping, Transmit and Receive BERT, Error insertion and verification, Secondary Signal (T1/E1/T3/STS-1), and Alarms setting and retrieving.

Important features

  • Allows you to control GL's OC-3 / STM-1 card either locally or remotely
  • Automation through scripting
  • Uses the same intelligent parsing and messaging system used by GL's T1/E1 client-server
  • Can control multiple OC-3 / STM-1 cards using the same command
  • The wild card and sequential operators available in the command syntax, allows you to configure and control multiple elements of the test set using a fewer lines of commands
  • Free client software (with source code) is available for download
  • Custom TCP/IP clients could be developed in any programming language to seamlessly integrate into your existing testing program

For comprehensive information on the analyzer, please refer to OC-3 / STM-1 Analyzer web page.

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