Fiber Master OTDR QX55
The Komshine QX55-P is a high-performance, handheld optical time domain reflectometer (OTDR) designed for FTTx/PON network testing, splicing loss evaluation, and long-haul network troubleshooting
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The Komshine Fiber Master QX55 is a high-performance, handheld Optical Time Domain Reflectometer (OTDR) engineered for the comprehensive installation, maintenance, and troubleshooting of fiber optic infrastructure. Optimized for long-haul backbones, local access networks, and FTTx/PON setups behind optical splitters, this tool packs complete testing versatility into an ultra-portable, 0.7kg ruggedized frame. Equipped with a modernized user interface, dual-wavelength verification, and built-in essential testing modules, the QX55 guarantees fast, clear pass/fail assessments of critical physical layer linkages.
Key Features
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Multi-Network Compatibility: Engineered for long-haul fiber routes, local access networks, and FTTx/PON physical testing through active splitters.
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All-in-One Multifunction Test Hub: Integrates a built-in Optical Power Meter (OPM), Stabilized Laser Source (SLS), Visual Fault Locator (VFL), RJ45 cable tester, and Fiber Inspection Probe (FIP) interface modules.
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High-Precision Performance Geometry: Delivers a powerful 32dB dynamic range paired with a tight 1m event dead zone for pinpoint accuracy on dense or short fiber spans.
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Intelligent Data Analysis: Features a native Link Map visualization alongside clear Pass/Fail automated judgment algorithms to simplify interpretation without manually reading complex traces.
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Rugged, Ultralight Architecture: Weighs a mere 0.7kg with a robust exterior designed to survive demanding outside plant environments, matched with an innovative, high-efficiency UI.
| Parameter / Feature | QX55-P |
| Wavelength (nm) | PON 1310/1550/1625 (built-in filter) |
| Dynamic range (dB) | 32/30/28 |
| Number of optical ports | 2 |
| Applicable fiber | SM (ITU-T G.652) |
| Distance range (km) | 0.5,1,2,5,10,20,35,50,75,100,150,200 |
| Pulse width (ns) | 5,10,20,50,100,200,500,1000,2000,10000,20000 |
| Event dead zone*1 (m) | 1 |
| Attenuation dead zone*2 (m) | 3.5 |
| Number of sampling points | Max. 80000 |
| Sampling resolution | Min. 0.04m |
| Distance measurement accuracy | +/-(0.75 m + Measurement distance x 2 x 10^-5 + Sampling resolution) |
| Loss measurement accuracy | +/-0.03 dB |
| Return loss measurement accuracy | +/-2 dB |
| OPM Availability | Non |
| Wavelength setting | 800 ~ 1650nm |
| Power range | -70 ~ +6dBm |
| Measure accuracy | < (±0.2 dB or ±5%) / 0.01dB |
| Display resolution | 0.01dB |
| Optical input port | SC/UPC + 2.5mm Universal Ferrule |
| SLS Availability | Available |
| Wavelength (nm) | 1310/1550 |
| Output power | ≥ -10dBm |
| Modulation mode | CW, 270 Hz, 1 kHz, 2 kHz |
| Laser class | Class 1M or Class 1 |
| Optical input port | OTDR port |
| VFL Availability | Available |
| Wavelength (nm) | 650 |
| Output power | 10mW |
| Modulation mode | CW, CHOP (Approx. 2 Hz) |
| Laser class | Class 3R |
| Optical input port | 2.5 mm Universal ferrule type |
| FIP Availability | Available |
| Magnification | 250X |
| Resolution(um) | >= 1.0 |
| Electrical interface | USB2.0 |
| Optical Connector | FC/UPC,SC/UPC,ST/UPC |
| Sensor | 1/3 inch |
| RJ45 Availability | Available |
| Wavelength (nm) / Cable Types | CAT5, CAT6 |
| Distance of Cable Collation | 300m |
| Distance of emitting signal | 300m |
| Link Map | Available |
| Pass/Fail judgment | Available |
| Distance unit | m, km, mile, ft, kft |
| PC Analysis Software | Available |
| Languages | English, Espanol, Chinese, Portugues, Francais, Russkiy |
| Optical connector | SC/UPC (FC/UPC, ST/UPC, LC/UPC is Optional) |
| Display | 3.5-inch color TFT LCD (Resolution: 640 x 480) |
| Electrical interface | Charge port x 1, USB 2.0 x 3, RJ45 x 2 |
| Operating temperature | -10 ~ 50 C (0 ~ 40 C for AC adapter, 0 to 35 C for battery charging) |
| Storage temperature | -20 to 60 C |
| Altitude | 4000 m |
| Humidity | 0 to 90% RH (20 to 90% with 739874 AC adapter, non-condensing) |
| Power requirements | 100 to 240VAC, 50/60Hz (AC adapter) |
| Battery | 3000mAh |
| LED Light illumination | >= 15000mcd |
| Operating time*3 | 5 hours |
| Data storage | Internal storage: >= 1000 waveforms, External storage: USB memory |
| Dimensions | Approx. 118 mm (W) x 218 mm (H) x 55 mm (D) |
| Weight | Approx. 0.73 kg (including internal battery and protectors) |