Short Dead Zones
EXFO’s FTB-720 OTDR helps you boost test productivity for inside-plant applications. Its exceptional 0.8 m event dead zone enables you to easily locate and characterize all events between the transmitter and the central office’s fiber distribution panel. This feature also comes in handy in access and LAN/WAN network applications, where events are usually closely spaced.

Multimode and Singlemode Flexibility
The FTB-720 model combines singlemode and multimode functionalities, ideal for private/premises/enterprise network testing. It offers the industry’s shortest dead zones, as well as lightning-fast acquisitions. Test multimode fiber within premises or singlemode fiber between premises—all with a single OTDR unit—and maximize your return on investment.

Filtered Port for Live Fiber Testing (Singlemode only)
The singlemode model now features a filtered 1625 nm port for in-service troubleshooting of live networks, such as P2P, FTTx and PON. The singlemode model is a versatile day-to-day tester for any access networks.

Features FTB-720
• Dynamic range of up to 35 dB
• Event dead zone as low as 0.8 meter
• Combined singlemode/multimode wavelengths (12CD-23B model)
• Integrated tool: combines a visual fault locator, inspection probe, broadband power meter and a CW source mode
• Controlled launch conditions fo more accurate loss measurements
• Live fiber testing at 1625 nm

Applications
• Access network testing
• LAN/WAN characterization
• Private networks
• Data centers

Specifications FTS-720:
• Wavelength (nm) b: 850 ± 20, 1300 ± 20, 1310 ± 20, 1550 ± 20, 1625 ± 15 (filtered)
• Dynamic range (dB) c, d: 27, 26, 36, 34, 34
• Event dead zone (m) e: 0.8
• Attenuation dead zone (m) e: 4, 4, 5, 5, 5, 5
• Range Distance (km):
- Multimode: 0.1, 0.3, 0.5, 1.3, 2.5, 5, 10, 20, 40
- Singlemode: 1.25, 2.5, 5, 10, 20, 40, 80, 160, 260
• Pulse Width (ns):
- Multimode: 5, 10, 30, 50, 100, 275, 500, 1000
- Singlemode: 5, 10, 30, 50, 100, 275, 500, 1000, 2500, 10 000, 20 000
• Launch Condition f: surrounded Flux (EF) i compliant
• Linearity (dB / dB) b: ± 0, 03
• Loss threshold (dB): 0, 01
• Resolution Loss (dB): 0001
• Sampling resolution (m):
- Multimode: 0, 04-2, 5
- Singlemode: 0, 04-5
• Sampling points: Up to 256 000
• Distance uncertainties (m) g: ± (0, 75 + 0, 0025% x distance + sampling resolution)
• Time measurement: User-defined (. 60 minutes maximum)
• Typical real-time refresh (Hz): 3
• Stable source output power (dBm) h: -3 (1300 nm), -7 (1550 nm)