DESCRIPTION:

The VIAVI 4100 Series CWDM OTDR Module is a modular optical test solution engineered for characterization, troubleshooting, and maintenance of CWDM and hybrid CWDM/DWDM optical transport infrastructures across telecom, metro, enterprise, access, wireless, and fibre broadband environments.

Designed for deployment with compatible VIAVI platforms including the T-BERD/MTS-2000, T-BERD/MTS-4000 V2, T-BERD/MTS-5800, OneAdvisor 800, and FTH-9000 systems, the 4100 CWDM OTDR enables field technicians and transport engineers to validate optical continuity, isolate fibre faults, and troubleshoot active wavelength networks without disrupting operational services.

The platform supports:

• CWDM network troubleshooting
• hybrid CWDM/DWDM transport validation
• metro fibre characterization
• access network qualification
• mobile fronthaul fibre testing
• enterprise optical validation
• live fibre diagnostics
• wavelength continuity verification

The 4100 Series CWDM OTDR is engineered for:

• fibre fault isolation
• optical route validation
• splice and connector characterization
• attenuation analysis
• optical continuity testing
• passive optical network troubleshooting
• live network diagnostics
• transport infrastructure verification

Its modular OTDR architecture supports high dynamic range acquisition, live traffic detection, SmartLink Mapper topology visualization, and automated pass/fail analysis for rapid field deployment and simplified optical troubleshooting workflows.

The system supports testing through CWDM MUX/DEMUX environments and can be integrated alongside VIAVI DWDM OTDR solutions to provide complete hybrid CWDM/DWDM network characterization capability for modern metro and access transport infrastructures.

Integrated SmartLink Mapper (SLM) provides icon-based fibre topology visualization to simplify interpretation of splice, connector, splitter, and MUX/DEMUX events while reducing OTDR trace analysis complexity for field technicians.

Technical Specifications

Supported Network Types

• CWDM optical transport
• Hybrid CWDM/DWDM networks
• Metro optical networks
• Access fibre infrastructure
• Enterprise optical networks
• Mobile fronthaul fibre systems
• FTTH transport environments

Supported Wavelength Configurations

Available wavelength combinations include:

• 1310 nm
• 1550 nm
• 1625 nm
• Filtered 1650 nm
• Multi-wavelength CWDM validation configurations

Dynamic Range

• Up to 45 dB dynamic range
• Up to 256,000 acquisition points

Event Dead Zone

• 0.65 m

Attenuation Dead Zone

• From 2.5 m

Pulse Width Range

• 3 ns to 20 µs depending on module configuration

Fibre Analysis Functions

• Automatic attenuation analysis
• Reflectance analysis
• ORL analysis
• Splice characterization
• Connector analysis
• Event mapping

Integrated Functions

• CW light source
• Broadband power meter
• Live traffic detection
• SmartLink Mapper (SLM)
• Automated pass/fail analysis

In-Service Capability

• Instantaneous traffic detection
• Live fibre testing support
• In-service troubleshooting capability

Platform Compatibility

• T-BERD/MTS-2000
• T-BERD/MTS-4000 V2
• T-BERD/MTS-5800
• OneAdvisor 800
• FTH-9000
• CellAdvisor 5G

Platform Configuration Options

Available OTDR Module Variants

Software Options

Available software capabilities include:

• SmartLink Mapper (SLM)
• FTTH-SLM applications
• Enterprise-SLM applications
• FTTA-SLM applications
• FastReport automated reporting
• Pass/fail workflow automation

Deployment Environments

The module supports deployment across:

• telecom transport networks
• metro optical infrastructures
• enterprise fibre environments
• wireless fronthaul systems
• FTTH broadband networks
• carrier Ethernet infrastructures

Standard Accessories

Typical supplied accessories include:

• SC/PC or SC/APC optical adapters
• Operational documentation
• Platform integration utilities
• Optical connector protection accessories

Optional Accessories

Available optional accessories include:

• LC optical adapters
• FC optical adapters
• Universal connector adapters
• SmartLink Mapper software
• Fibre inspection probes
• Optical power meter upgrades

Key Features

• Modular CWDM optical test platform
• Hybrid CWDM/DWDM troubleshooting capability
• High dynamic range OTDR analysis
• Live in-service fibre testing
• SmartLink Mapper topology visualization
• Automatic pass/fail diagnostics
• Metro and access network qualification
• Instantaneous traffic detection
• Multi-wavelength optical validation
• Fibre fault isolation support
• Integrated optical power meter
• Portable modular deployment architecture
• Compatible with VIAVI T-BERD and OneAdvisor platforms
• FTTH and mobile fronthaul deployment support
• Carrier-grade optical transport diagnostics solution