The Exfo FG-720-034L is a stand-alone Optical Time Domain Reflectometer (OTDR) designed for continuous monitoring and fault detection across single-mode fiber networks. Operating at 1550 nm and 1625 nm wavelengths, this Fiber Guardian unit delivers 45 dB dynamic range at each wavelength for precise fiber characterization. The system supports multiple test modes: manual testing with result download, on-demand testing with fault alerting, scheduled testing at user-defined intervals, and 24/7 monitoring that stores fault-related events only.
## Technical Specifications
• **Wavelengths:** 1550 nm and 1625 nm
• **Dynamic Range:** 45 dB at 1550 nm; 45 dB at 1625 nm
• **Fiber Type:** Single-mode (SM) OTDR
• **Local Data Storage:** Up to 80 GB capacity with RAID configuration
• **Network Interfaces:** 10/100/1000 Base-T Ethernet (IPv4 and IPv6); one dedicated local access port
• **Power Input:** Dual, hot-swappable, redundant supplies (100–240 VAC, 50/60 Hz AC or DC option)
• **Operating System:** Embedded with integrated web server for local and remote access
## Key Features
• SMS-based alerting for fault conditions and resolutions
• Dry-contact relay status indicator for subsystem faults and power events
• Four distinct test modes accommodating unplanned, on-demand, scheduled, and continuous monitoring workflows
• RAID-protected storage for mission-critical fiber data
• Redundant, hot-swappable power supplies ensure uninterrupted operation
## Typical Applications
Telecom, datacom, and CATV network monitoring; long-haul fiber link characterization; in-service fault detection and localization.
## Compatibility & Integration
Scales to NQMSfiber for centralized alarm management, reporting, and trouble-ticket handling. Integrates with existing network management systems via embedded web interface and standard Ethernet connectivity.
