DESCRIPTION:

The VIAVI E4126B-APC 4100 Module B OTDR is a professional optical time domain reflectometer module engineered for fibre installation, qualification, troubleshooting, and maintenance workflows across telecom, datacentre, enterprise, metro, long-haul, and FTTx/PON environments. Designed for use with VIAVI OneAdvisor 800, T-BERD/MTS-2000 V2, T-BERD/MTS-4000 V2, and MTS-5800 platforms, the module delivers advanced OTDR analysis capability within a portable modular field-testing ecosystem.

The E4126B-APC configuration supports singlemode OTDR testing at 1310 nm and 1550 nm wavelengths, enabling fibre construction testing, preventative maintenance, acceptance testing, and optical troubleshooting from a single module. The 4100 Series Module B architecture provides higher dynamic range capability suitable for metro, access, FTTx, enterprise, and transport fibre applications.

Built on the VIAVI 4100 Series OTDR platform, the module supports Smart Link Mapper graphical fibre analysis, automated OTDR workflows, multiple trace display modes, Test Process Automation integration, and consolidated reporting functionality for streamlined field operation. The portable modular design allows migration of fibre test capability between multiple VIAVI handheld platforms, helping technicians standardise workflows across optical network deployment and maintenance operations.

The APC optical connector configuration is optimised for angled physical contact fibre environments requiring reduced reflectance and improved measurement stability during high-performance optical testing procedures. The module is suitable for fibre qualification, commissioning, troubleshooting, and preventative maintenance workflows across modern optical infrastructure deployments.

Key Features

• Professional 4100 Series Module B OTDR
• Supports 1310 nm and 1550 nm wavelengths
• Designed for fibre installation and troubleshooting applications
• Compatible with VIAVI OneAdvisor 800 platforms
• Compatible with T-BERD/MTS-2000 V2, MTS-4000 V2, and MTS-5800 platforms
• Suitable for telecom, metro, datacentre, and FTTx/PON environments
• Higher dynamic range architecture for extended network testing
• Up to 42 dB dynamic range at 1310 nm
• Smart Link Mapper graphical fibre analysis
• Automated OTDR measurement workflows
• Multiple OTDR result display modes
• Compatible with VIAVI Test Process Automation workflows
• Portable modular architecture
• APC optical connector configuration
• Integrated light source and power meter functionality
• Designed for fibre qualification, troubleshooting, and maintenance workflows