DESCRIPTION:

The VIAVI E4136A-APC 4100 Module A 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 flexible modular OTDR analysis capability within a portable field-ready testing ecosystem.

The E4136A-APC configuration supports singlemode OTDR testing at 1310 nm, 1550 nm, and 1625 nm wavelengths, enabling fibre construction testing, preventative maintenance, and live network troubleshooting from a single module. The integrated 1625 nm wavelength allows in-service fibre analysis without disrupting active traffic in supported optical network environments.

Built on the VIAVI 4100 Series Module A architecture, the platform supports Smart Link Mapper graphical fibre analysis, automated OTDR workflows, multi-result display modes, and VIAVI Test Process Automation integration for streamlined fibre qualification and reporting operations. The compact modular design allows technicians to adapt the platform for telecom, datacentre, access, metro, and transport fibre applications using interchangeable VIAVI test modules. 

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 acceptance testing, troubleshooting, maintenance, and optical network commissioning workflows across modern fibre infrastructure deployments. 

Key Features

• Professional 4100 Series OTDR module
• Supports 1310 nm, 1550 nm, and 1625 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, long-haul, datacentre, and FTTx/PON environments
• Supports live network troubleshooting using 1625 nm wavelength
• 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
• Designed for fibre qualification, troubleshooting, and maintenance workflows
• Suitable for commissioning and preventative maintenance applications