The EXFO VCS-15A Talk Set is a field-portable communication and test instrument for fiber optic technicians. It delivers digital full-duplex voice communication directly over optical fiber, enabling real-time coordination during installation, maintenance, and troubleshooting. The integrated laser light source supports fiber identification and characterization across multiple wavelengths. An audible call function signals link establishment and loss. Conference calling accommodates multiparty communication, while the Telephone Bridge feature connects field crews to remote technical support via standard handset cable.
Technical Specifications
Communication
• Digital full-duplex voice over optical fiber
• Electret microphone
• Audible call function with link-state signaling
• Conference call capability
• Telephone Bridge for external support connection
Light Source
• Laser emitter
• Wavelength options: 1310 nm ±30 nm and 1550 nm ±30 nm (model-dependent)
• Dynamic range: Up to 50 dB
• Operating distance: Up to 200 km (model-dependent)
Power
• Built-in rechargeable battery pack; 4 AA alkaline cells
• Battery life: Over 70 hours
• Auto power-save enabled
Environmental
• Operating temperature: -10°C to 60°C
• Storage temperature: -30°C to 60°C
• Dimensions: 19 × 10 × 4 cm (7.5 × 4 × 1.5 in.)
– Key Features
• Full-duplex voice communication over single-mode fiber
• Integrated laser light source for fiber testing
• Extended battery autonomy for all-day field operations
• Rugged industrial design with protective holster
• Conference calling for team coordination
• Remote technical support via telephone integration
– Typical Applications
• Fiber installation and splicing coordination
• Field troubleshooting and maintenance
• Long-distance fiber identification
• Network testing in remote locations
– Compatibility & Integration
The Telephone Bridge accepts standard telephone handset cables, enabling connection to external support networks. Multiple wavelength variants (1310 nm and 1550 nm) address diverse fiber plant configurations. Supplied accessories include AC charger, carrying case, protective holster, conference call cable, shoulder strap, and headset.


















