The EXFO FVA-60A is a handheld variable optical attenuator engineered for precise control of optical signal power in telecommunications and optical testing environments. This instrument delivers accurate, repeatable attenuation settings across a wide dynamic range, making it ideal for fiber characterization, system simulation, and component validation in single-mode optical networks.
## Technical Specifications
• **Attenuation Range:** Up to 70 dB
• **Attenuation Linearity:** ±0.15 dB (2.5 to 70 dB)
• **Resolution:** 0.05 dB
• **Repeatability:** ±0.10 dB
• **Insertion Loss (worst case):** 3.0 dB
• **Back Reflection (worst case):** -26 dB
• **Operating Wavelengths:** 1300 nm, 1550 nm
• **Fiber Type:** Single-mode (9/125 µm)
• **Internal Fiber:** Step Index
• **Numerical Aperture:** 0.10
• **Optical Connectors:** Legacy biconic fiber-optic connectors
## Key Features
• Three attenuation modes: Absolute, Relative, and X + b
• Program mode for automated attenuation sequences with repeatable step control—essential for accelerated BER testing
• Variable scanning speed up to 60 dB in 15 seconds (fast mode)
• RS-232 interface for remote control and PC integration
• Backlit display for low-light operation
• Dual power architecture: rechargeable battery pack (NiCad or Ni-MH) with 2 × 9V alkaline battery backup
• AC adapter available for continuous laboratory operation
## Typical Applications
• Optical fiber testing and characterization
• BER testing and system performance validation
• Component insertion loss and return loss measurement
• Optical signal simulation and power control
• Telecommunications network commissioning and troubleshooting
## Compatibility & Integration
Designed for single-mode fiber networks. RS-232 remote control enables integration into automated test systems and PC-based measurement platforms. EXFO manufacturing complies with ISO 9001 standards.
