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VFLs work well for exposed lengths of fiber near a patch panel by illuminating bad connections and breaks. They are not very helpful for cable runs more than a few meters, or when the cable not visible or accessible, or when the laser light can’t penetrate the jacket.
Optical Time Domain Reflectometers (OTDR) provides graphical data and analysis along the entire length of a cable, way beyond the reach of a VFL, but they can be expensive and require more time to and skill to operate.
Fiber QuickMap fills the gap between a VFL and an OTDR. These models have the simplicity of a VFL, and provide distance and power information on high losses, breaks, and the end of the fiber. They also identify live fiber
| Model | |
| Operating temperature with the battery | 0ºC to 50ºC |
| Non-operating temperature | -20ºC to 60ºC |
| Operating relative humidity (without condensation) | 95% (10ºC to 35ºC) 75% (35ºC to 40ºC) uncontrolled < 10ºC |
| Vibration | Random, 5 Hz to 500 Hz, MIL-PRF-28800F CLASS 2 |
| Shock | 1 meter drop test |
| Altitude | 3000m |
| EMC | EN 61326-1: 2004 |
| Battery type | 2 AA alkaline batteries (no battery charger) |
| Battery life | 1500 tests (typical) |
| Laser safety | Class 1 CDRH Complies to EN 60825-2 |
| LCD type | Backlit black and white (segments) |
| Index of refraction range | 1.45 to 1.5 (factory default is 1.496) |
| Auto turn off | Automatically turns off after 5 minutes if no keys are pressed. Backlight turns off first. |
| Factory calibration interval | None |
| Output wavelengths | 850 nm ± 10 nm |
| Laser classification | Class 1 CDRH Complies to EN 60825-2 |
| Dynamic range | >11 dB |
| Maximum distance | 1500 meters or 4921 feet |
| Maximum number of incidents shown | 9 |
| Distance accuracy (0 m to 1500 m or 0 ft to 4921 ft) | ± (1 m + 0.1 % x length) for reflective incidents1 ± (3 m + 0.1 % x length) for non-reflective incidents2 |
| Testing speed | < 6 seconds typical |
| Connector | Removable/cleanable SC adapter, UPC polish |
| Fiber types tested | 50/125 µm or 62.5/125 µm multimode |
| Detection of reflective incidents3 | -35 dB default threshold (User selectable: -20 dB to -45 dB in 5 dB increments) |
| Reflectance accuracy4 | ± 4 dB |
| Maximum reflectance measurement | -20 dB |
| Detection of loss incidents5 | 0.70 dB default threshold (user-configurable from 0.5 dB to 6.1 dB in 0.2 dB increments) |
| Bulkhead quality | If no fiber is attached or if the connector is dirty, the troubleshooter displays 0 m or 0 ft. |
| Live fiber detection | Detects optical signals from 600 nm to 1050 nm and shows ACTIVE LINE if a signal is there. Looks for a signal every 3 seconds after the first detec-tion. +7 dB maximum input power. |
Multimode Fiber Distance and Fault Locator
- Works on multimode fiber, 50/125µm and 62.5/125 µm
- 850 nm output wavelength. Measure up to 4,921 feet (1,500 metres) of fiber in seconds
- Locate severe bends, high-loss splices, breaks and dirty connectors in multimode fiber
- Measure and locate high-loss splices
- Locate the end of a fiber
- Find potential sources of high bit error rates caused by reflectance from dirty or poor connections
- Detects live optical signals before it begins testing
- Quick set-up. Connect your fiber and press the Test button. No lengthy set-up necessary
- Find problems quickly. Six-second test time—no more blind troubleshooting that can waste hours
- Change the Index of Refraction (IOR) to improve fiber length accuracy
- Visible in dark areas. Backlighted display turns off automatically
- Removable SC adapter is easily cleaned
- Optional LC, ST and FT interchangeable adapters are available
- Long battery life, 1,500 tests (typical) from 2 AA alkaline batteries
- Rugged construction; vibration and drop tested to 1 meter
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