Overview
The Optical Fiber Identifier (OFI) is a practical and reliable field tool used to detect optical signals in live fiber lines without disrupting network traffic. Using micro-bending testing technology, this device allows technicians to safely identify active fibers, signal direction, and relative power levels before performing maintenance or reconnection work.
Equipped with an intuitive LED display and audible tone detection, the OFI can quickly determine whether a fiber is live or dark, as well as recognize standard traffic tones (270 Hz, 1 kHz, and 2 kHz). The ergonomic handheld design ensures comfortable one-hand operation, making it ideal for field technicians working in access, metro, or enterprise fiber networks.
A built-in Visual Fault Locator (VFL) further enhances functionality by assisting with continuity testing and fault location, reducing the need for multiple tools on site.
Key Advantages
- Non-Intrusive Live Fiber Detection
Identifies optical signals without disconnecting or interrupting traffic. - Signal Direction & Power Indication
Displays signal direction and relative core power for accurate fiber identification. - Traffic Tone Recognition
Detects standard tones at 270 Hz, 1 kHz, and 2 kHz with audible alerts. - Live / Dark Fiber Identification
Quickly confirms signal presence or absence in fiber lines. - Built-in VFL Function
Integrated visual fault locator for basic fault tracing and continuity checks. - Ergonomic & Portable Design
Lightweight handheld unit suitable for long field operations. - Low Power & Auto-Off Function
Energy-efficient operation with automatic power-off to extend battery life.
Technical Specifications
Optical Performance
- Identified wavelength range: 750 – 1700 nm
- Identified signal type: 270 Hz / 1 kHz / 2 kHz
- Insertion loss: ≤ 1.0 dB
- Minimum detection power:
- -35 dBm @ 1550 nm
- -30 dBm @ 1310 nm
- Detector type: 1 mm InGaAs
Fiber Compatibility
- Fiber diameter: < 3 mm fiber
- Testing method: Micro-bending detection
VFL Function
- Center wavelength: 650 nm
- Output power: 10 mW
Display & Interface
- Display type: LED
- Functions displayed:
- Signal direction
- Relative core power
- Signal presence (live/dark)
- Power measurement
- Low battery indication
Power & Battery
- Battery type: 2 × AA alkaline batteries
- Battery life: > 60 hours
- Power management: Auto-off function
Environmental & Physical
- Operating temperature: 0°C to +50°C
- Storage temperature: -20°C to +60°C
- Weight: 200 g
- Dimensions: 230 × 43 × 48 mm
Typical Applications
- Live fiber identification before splicing or maintenance
- Optical network troubleshooting
- Fiber installation and verification
- Access, metro, and enterprise fiber networks