Introduction
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.
Key Features
Dynamic range of up to 36 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 for more accurate loss measurements
Live fiber testing at 1625 nm
EXFO Connect-compatible: automated asset management; data goes through the cloud and into a dynamic database
iOLM-ready: one-touch multiple acquisitions, with clear go/no-go results presented in a straightforward visual format
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 for more accurate loss measurements
Live fiber testing at 1625 nm
EXFO Connect-compatible: automated asset management; data goes through the cloud and into a dynamic database
iOLM-ready: one-touch multiple acquisitions, with clear go/no-go results presented in a straightforward visual format
Applications
Access network testing
LAN/WAN characterization
Private networks
Data centers
LAN/WAN characterization
Private networks
Data centers
Multimode and Single Mode Flexibility
The FTB-720 model combines singlemode and multimode functionalities, ideal for private/premises/enterprise network testing. It offers the industry's sho est 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.
Ordering Information
| FTB-1-720-023B | EXFO FTB-1 OTDR with FTB-720-023B Module |
| FTB-1-720-12CD-23B | EXFO FTB-1 OTDR 850/1300/1310/1550nm, 27/26/36/34dB |
DESIGNED FOR EFFICIENCY
| SPECIFICATIONS (* note a) | |
| TECHNICAL SPECIFICATIONS | |
| Wavelength (nm) (* note b) | 850 ± 20, 1300 ± 20, 1310 ± 20, 1550 ± 20, 1625 ± 15 (filtered) |
| Dynamic range(dB) (* note c, d) | 27, 26, 36, 34, 34 |
| Event dead zone (m) (* note e ) | 0.8 |
| Attenuation dead zone (m) (* note e) | 4, 4.5, 5, 5, 5 |
| Distance range (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 conditions (* note f ) | Class CPR 1 or 2 (* note i) |
| Linearity (dB/dB) (* note b ) | ±0.03 |
| Loss threshold (dB) | 0.01 |
| Loss resolution (dB) | 0.001 |
| Sampling resolution (m) | Multimode: 0.04 to 2.5 |
| Singlemode: 0.04 to 5 | |
| Sampling points | Up to 256 000 |
| Distance uncertainty (m) (* note g) | ±(0.75 + 0.0025 % x distance + sampling resolution) |
| Measurement time | User-defined (60 min. maximum) |
| Typical real-time refresh (Hz) | 3 |
| Stable source output power (dBm) (* note h) | –3 (1300 nm), –7 (1550 nm) |
| GENERAL SPECIFICATIONS | |
| Size (H x W x D) | 130 mm x 36 mm x 252 mm |
| Weight | 1.5 kg (1.4 lb) |
| Operating Temperature | 0 °C to 50 °C (32 °F to 122 °F) |
| Storage Temperature | –40 °C to 70 °C (–40 °F to 158 °F) |
| Relative humidity | 0% to 95% non-condensing |
NOTES
a. All specifications valid at 23 °C ± 2 °C with an FC/PC connector, unless otherwise specified; APC connector for FTB-720 singlemode model.
b. Typical.
c. Typical dynamic range with longest pulse and three-minute averaging at SNR = 1.
d. Multimode dynamic range is specified for 62.5 µm fiber; a 3 dB reduction is seen when testing 50 µm fiber.
e. Typical dead zone for multimode reflectance below –35 dB and singlemode reflectance below –45 dB, using a 5 ns pulse.
f. For multimode port, controlled launch conditions allow 50 µm and 62.5 µm multimode fiber testing.
g. Does not include uncertainty due to fiber index.
h. Typical output power is given at 1300 nm for multimode output and 1550 nm for singlemode output.
i. Under improvement to achieve better conditions.
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