| Manufacturer's Description |
The FOT-920 MaxTester Automated Loss/Return Test Set is the unit of choice for field
technicians in network installation and maintenance. This unit integrates a
fully automated bidirectional loss test set (OLTS), a light source and the Ultra-High-
Power™ power meter with useful options, including a full-duplex digital talk set,
visual fault locator and optical return loss test set, to create versatile combinations.
High-Fiber-Count Installation
The FOT-920 gives you the edge when it comes to high-fiber-count installation.
First, when doing a large volume of testing, the return on your investment takes
less than a year. Second, the FOT-920 reduces the time you spend testing, training
and in the field, making it ideal for outside plant applications.
OC-48 and OC-192 Systems
Due to their high modulation rates, lasers used to transmit at OC-48 and OC-192
speeds are highly sensitive to backreflection. When installing networks designated
to transmit at these speeds, measuring backreflection is a must to ensure proper
stability of the lasers and their central wavelength. |
| Specifications |
| Detector Type | GeX (2mm) |
| Measurement Range (dBm) | 21 to -60 |
| Uncertainty (%) | ±5 |
| Wavelength Range (nm) | 780 to 1625 |
| Resolution (dB) | 0.01 |
| Linearity (dB) | ±0.06 |
| FasTesT/Source/ORL | -BR23BL |
| Emitter type | laser |
| Wavelengths (nm) | 1310 ±25
1550 ±25 |
| Output power (dBm) | ≥-5/-7 |
| Spectral width (nm) | ≤5/5 |
| Stability (8 hours) | ±0.1/±0.1 |
| FasTesT range (dB) | 60 |
| Maximum deviation (dB) | ±0.35/±0.5 |
| ORL range (dB) | 65 |
| ORL uncertainty (dB) | ±0.4 |
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