Exfo FTB-Lite 720D Single Mode OTDR
Condition: Refurbished / Calibrated
Warranty: 1 Year Warranty
Shipping: USA & Worldwide
- Exfo FTB-Lite 720D Single Mode OTDR (BC# -L/T*)
- 1310nm
- 1550nm
- 1625nm
- Optical Link Mapper
- SM SC-SC Fiber Cable
- AC Adapter/Charger
- Carrying Case (G)
Exfo FTB-Lite 720D Single Mode OTDR
The EXFO FTB-Lite 720D Single Mode OTDR is a portable optical time-domain reflectometer designed to test and troubleshoot singlemode fiber-optic networks. It helps technicians verify new installations, assess existing connections and locate faults in telecommunications and access networks.
The instrument sends light pulses into a fiber and measures the light that returns through backscatter and reflections. It produces a trace showing how the fiber performs over distance, allowing technicians to locate connectors, splices, breaks and areas of excessive signal loss. These measurements help identify where repairs or further inspection are needed.
The included Optical Link Mapper automatically interprets traces and presents detected events as recognizable icons. It displays overall fiber length, link loss and optical return loss, with pass-or-fail results based on selected limits. Suitable configurations also support testing through PON splitters and filtered 1650 nm troubleshooting of active fibers.
An eight-inch sunlight-readable touchscreen makes results accessible during fieldwork, while its rechargeable battery provides up to ten hours of operation, depending on use. EXFO Exchange connectivity supports uploading results, sharing measurements and preparing reports, helping teams document fiber condition and completed testing.
Features:
- Singlemode fiber testing for installation verification, maintenance and troubleshooting.
- Up to 38 dB dynamic range.
- Typical 0.7 m event dead zone and 2.5 m attenuation dead zone for identifying closely spaced events.
- Fiber length, link loss and optical return loss measurements.
- Included Optical Link Mapper (OLM) with automatic trace interpretation and an icon-based view of fiber events.
- Automatic parameter settings and pass/fail results.
- PON testing through splitters up to 1:32.
- Filtered 1650 nm live-fiber testing, with the appropriate configuration.
- Optional inline GPON/XGS-PON power meter.
- Field-replaceable optical connector with connector-health diagnostics.
| Specification | Details |
|---|---|
| Manufacturer | EXFO |
| Model | FTB-Lite 720D, singlemode configuration |
| Instrument type | Optical time-domain reflectometer |
| Fiber type | Singlemode |
| Test wavelengths | 1310/1550 nm; filtered 1650 nm configuration available |
| Typical dynamic range | 1310 nm: 38 dB; 1550 nm: 36 dB; 1650 nm: 37 dB |
| Typical event dead zone | 0.7 m |
| Typical attenuation dead zone | 2.5 m |
| Typical PON dead zone | 35 m |
| Selectable distance range | 0.1–260 km |
| Pulse width | 3–20,000 ns |
| Sampling resolution | 0.04–10 m |
| Sampling points | Up to 256,000 |
| Loss resolution | 0.001 dB |
| Linearity | ±0.03 dB/dB |
| Typical reflectance accuracy | ±2 dB |
| Display | 8-inch, 1280 × 800, sunlight-readable touchscreen |
| Storage | More than 20,000 SOR traces |
| Interfaces | Two USB-A, USB-C Power Delivery, Gigabit Ethernet |
| Wireless connectivity | Bluetooth, Wi-Fi, LTE and GNSS; regional restrictions apply |
| Battery | Rechargeable LiFePO4; up to 10 hours |
| Operating temperature | −10°C to +50°C |
| Storage temperature | −40°C to +70°C |
| Relative humidity | 0–95%, non-condensing |