The EXFO FG-720-004M 1625 OTDR is a single-mode optical time-domain reflectometer operating at 1625 nm, designed for remote testing, troubleshooting, and continuous monitoring of metro-class fiber networks. This stand-alone unit delivers a 36 dB dynamic range and integrates all-in-one OTDR capabilities with advanced network management, enabling unplanned tests, on-demand diagnostics, scheduled monitoring, and real-time fault alerting across distributed fiber plant.
## Technical Specifications
• **Model:** EXFO FG-720-004M
• **Wavelength:** 1625 nm
• **Type:** Single-mode (SM) OTDR, metro application
• **Dynamic Range:** 36 dB (SM)
• **Dimensions:** 44 mm H × 427 mm W × 312 mm D (1.72 in × 16.8 in × 12.3 in)
• **Weight:** 13 kg (28.5 lb)
• **Operating Temperature:** 0 °C to 50 °C (32 °F to 122 °F)
• **Power Input:** AC 100–240 VAC, 50/60 Hz or DC −48 VDC
• **Network Interface:** 10/100/1000 Base-T Ethernet (IPv4 and IPv6); one dedicated LAN port for local access
• **Data Storage:** Up to 80 GB local capacity with RAID protection
• **Certifications:** CE, CSA-UL, RoHS
## Key Features
• Self-learning, plug-and-play deployment with auto-provisioning
• Multitasking test system supporting multiple concurrent users
• Four operational modes: manual testing, on-demand testing with fault logging, 24/7 continuous monitoring with event storage, and scheduled testing at hourly, daily, or weekly intervals
• SMS-triggered test initiation and flexible alerting via SMS, email, or SNMP traps
• Dual, hot-swappable, redundant power supplies
• Dry-contact relay for subsystem fault notification independent of power state
• Embedded web server for local or remote configuration and result retrieval
• Optional GSM modem (USB external) for cellular connectivity
• Rackmount compatibility: RK19 (19 in), RK23 (23 in), and RKET (ETSI)
## Typical Applications
• Metro fiber link characterization and acceptance testing
• Scheduled preventive monitoring for fiber degradation detection
• Fault isolation and troubleshooting in live networks
• Unattended remote OTDR measurement with automated result logging
## Compatibility & Integration
Integrates with NQMSfiber for centralized alarm management, reporting, and trouble-ticket automation.
