The TC Communications TC4001 is a passive, 2-channel wavelength division multiplexer (WDM) that doubles single-mode fiber capacity by transmitting bidirectional 1310nm and 1550nm signals over a single fiber strand. Format-transparent operation eliminates protocol dependencies, making it ideal for capacity expansion where new fiber installation is impractical.
Technical Specifications
Optical Performance
• Wavelengths: 1310nm and 1550nm
• Fiber Type: Single-mode only
• Insertion Loss: Standard version < 0.6 dB (typical 1.5 ± 0.5 dB); High Isolation option 15 dB; High Isolation optional > 30 dB
• Directivity (Return Loss): > 50 dB
• Polarization Sensitivity: Typical < 0.1 dB
• Thermal Stability (PSD): Typical ±0.1 dB
Ports & Connectors
• Three optical ports: 1310nm, 1550nm, combined 1310nm + 1550nm
• Connector options: ST, FC, or SC
Environmental
• Operating Temperature: -10°C to 50°C
• Storage Temperature: -40°C to 90°C
• Humidity: 95% non-condensing
Physical
• Passive device—no external power required
• Standalone and rackmount configurations available
• Dual two-channel units offered
– Key Features
• Passive architecture eliminates power dependencies and operational complexity
• Protocol-agnostic multiplexing accommodates diverse signal types
• Dual-channel configuration maximizes existing fiber utilization
• Compact form factor suitable for field deployment and cabinet integration
– Typical Applications
Industrial and commercial environments requiring fiber capacity expansion without new cable infrastructure installation. Particularly suited to legacy systems where fiber rerouting is prohibitively costly or logistically infeasible.
– Compatibility & Integration
Designed for single-mode fiber networks operating at standard telecom wavelengths. Available connector types support integration into existing ST, FC, and SC terminated systems.
