The Digital Lightwave NIC PLUS NXG NL81B is a portable multi-protocol network test unit engineered for real-time analysis and verification of high-speed data transport systems. It delivers comprehensive protocol support for Ethernet, SONET, and SDH networks, spanning TDM traffic through packet-based services. The instrument combines field portability with laboratory-grade diagnostics—enabling on-site network verification, maintenance, and rapid issue resolution across telecommunications and global communications infrastructures.
Technical Specifications
Protocol & Data Rate Support
• Protocols: Ethernet, SONET, SDH
• Data rates: DS0/E1 through OC-192/STM-64, up to 112 Gbps with FEC generation and analysis
• Optical wavelengths: 1310 nm/1550 nm dual wavelength and 1550 nm single wavelength laser options
Analysis & Test Capabilities
• Bit Error Rate Testing (BERT) in RAW format up to OC-192/STM-64
• Real-time network traffic analysis with alarm and error generation/analysis
• Datapipe testing for SONET/SDH frames, PoS frames, and ATM cells
• Protocol analysis with incoming SONET/SDH traffic structure identification
• Jitter/Wander generation and analysis across OTU1, 155M–2.5G SONET/SDH, and PDH/T-Carrier
• Record and Playback functionality
Test Modules
Platform supports modular expansion: PDH/T-Carrier with optional jitter/wander, MSA 2020/2030, Optical Jitter and Wander, Serial Interface, ATM, HD Ethernet (T1, T1T6), and configurations for N61–N88 and NL61–NL88.
– Key Features
• 10.4-inch active matrix color display with touch screen
• Intuitive graphical user interface minimizing operator training requirements
• Dual slot PCMCIA interface for modem and memory storage
• Optical ports supporting Fibre Channel testing on Ports 1–4
• Electrical ports for Ethernet and associated electrical interfaces
• Power: 100–120 VAC and 200–240 VAC, 50–60 Hz
– Typical Applications
• Network deployment and field verification
• SONET/SDH network maintenance and diagnostics
• High-speed Ethernet transport validation
• Telecommunications network troubleshooting
• On-site jitter and wander characterization
– Compatibility & Integration
The NL81B integrates with the broader NIC platform family, supporting modular test configurations across legacy TDM, optical, and modern packet-based transport systems.
