Exfo FOT-920 MaxTester Automated Loss Test Set
Exfo OTDRs.
- Model
- Exfo FOT-920
- Calibration
- Available on request
- Price
- $499
- Status
- In stock
- RFQ ref
- FOT-920
This unit
The EXFO FOT-920 MaxTester Automated Loss Test Set is a portable fiber optic test instrument designed for field installation and maintenance. It integrates automated bidirectional loss testing, optical return loss (ORL) measurement, light source functionality, and power metering into a single platform. The FasTesT™ system executes dual-wavelength, bidirectional loss measurements in under 30 seconds, identifying signal loss causes - breaks, bends, faulty connectors, splices - over distances to 5 km.
Power measurement capability extends to +35 dBm with Ultra-High-Power™ detector models supporting Ge, GeX, or InGaAs detector types. Configurable Pass/Fail thresholds with visual alarms streamline on-site pass/fail determination. Internal storage accommodates up to 512 fiber records with RS-232 data transfer to PC or portable printer.
Optional full-duplex digital talk set enables remote voice communication; preset or preprogrammed messages transmit via the fiber under test as backup. The integrated 650 nm visual fault locator (VFL) identifies faults through yellow-jacketed fibers with visible red glow.
Technical Specifications
- Automated Loss Test Set (OLTS): dual-wavelength bidirectional loss testing
- FasTesT measurement time: less than 30 seconds for dual-wavelength, bidirectional loss testing
- Maximum loss measurement range: up to 5 km
- Power meter range: up to +35 dBm (Ultra-High-Power™ models)
- Visual Fault Locator: 650 nm, Class 2 laser, max output 1 mW
- Storage capacity: up to 512 fiber records
- Data interface: RS-232 to PC or portable printer
- Detector port compatibility: most connector types
- Detector options: Ge, GeX, or InGaAs types
- Light source: one or two wavelengths via single port
- Optical Return Loss (ORL) testing with simultaneous fiber length measurement
Key Features
- Configurable Pass/Fail thresholds per wavelength with visual alarms
- End-to-end signal loss cause identification
- L-band transmission testing support at 1625 nm
- Three-way power options: NiMH rechargeable batteries
- Class 1 LED main unit per IEC 60825
- Laser safety compliance: 21 CFR 1040.10, 1040.11, and IEC 60825-1
Typical Applications
- Field fiber optic cable installation verification
- Network maintenance diagnostics
- Splice and connector performance assessment
- Fiber break and fault location
- Return loss characterization
Compatibility & Integration Connector compatibility spans most detector port types. Optional full-duplex digital talk set integrates voice communication for remote coordination. Data export via RS-232 interface supports portable field reporting and network documentation workflows.
Specifications
| Parameter | Value |
|---|---|
| Power Range (dBm) | '+35 dBm | Wavelength Range: 1625 nm |
Exfo FOT-920 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Exfo FOT-920. Calibration covers distance accuracy verified against a calibrated fiber length reference, event loss measurement accuracy at splice and connector events, dead zone (event and attenuation) at rated pulse width, dynamic range verification at 1310 nm and 1550 nm, backscatter coefficient calibration, and return loss measurement accuracy. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Exfo FOT-920 faults: optical port connector damage or contamination, battery failure, display damage from field use, module failure on FTB or MTS platforms, calibration drift. Most field OTDRs fail due to physical damage. On modular platforms (EXFO FTB, Viavi MTS), individual module failures are serviced without replacing the entire mainframe. Optical port cleaning resolves many apparent measurement faults before mechanical repair is needed.
Exfo FOT-920 price
This Exfo FOT-920 is listed at $499. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Exfo FOT-920 calibration cost
NIST-traceable calibration for the Exfo FOT-920 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers distance accuracy verified against a calibrated fiber length reference, event loss measurement accuracy at splice and connector events, dead zone (event and attenuation) at rated pulse width, dynamic range verification at 1310 nm and 1550 nm, backscatter coefficient calibration, and return loss measurement accuracy. Turnaround is 1 to 3 business days after receipt. See full calibration details →
