GL Communications Expands SONET/SDH Testing with Channelized, Unchannelized Analyzer
Event summary
- GL Communications launched enhanced capabilities for its SonetExpert™ analyzer on April 14, 2026, enabling monitoring, analysis, emulation, and validation of SONET and SDH networks.
- The platform supports both channelized (DS0, T1, E1) and unchannelized (OC-3/STM-1 to OC-192/STM-64) analysis in a single portable solution.
- Key features include alarm monitoring, protocol analysis for ISDN, SS7, Frame Relay, ATM, and PPP, and automatic SONET/SDH hierarchy discovery.
- The solution is designed for telecom operators, utilities, railway signaling, defense networks, and enterprise backbone deployments.
The big picture
Despite the transition to packet-based transport, SONET and SDH networks remain critical for telecom operators, utilities, and defense systems. GL Communications' SonetExpert™ analyzer addresses the need for comprehensive testing and validation across both legacy and modern transport environments. The platform's ability to handle both channelized and unchannelized analysis positions it as a key tool for maintaining operational reliability in multi-vendor deployments.
What we're watching
- Legacy Infrastructure
- How GL Communications will position SonetExpert™ amid the industry shift toward packet-based transport.
- Market Adoption
- Whether telecom operators and other critical infrastructure providers will embrace the unified platform for SONET/SDH testing.
- Competitive Dynamics
- The pace at which competitors respond with similar integrated solutions for SONET/SDH network validation.
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