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| Brand | Tianwei (Shandong Tianwei Environmental Technology Co., Ltd.) |
|---|---|
| Model | TW-6481B5+ |
| Origin | Shandong, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Application Scope | Length measurement, attenuation profiling, splice/connector loss evaluation, and fault localization in single-mode and multimode optical fiber cables |
| Dynamic Range | 28 dB |
| Maximum Test Distance | 100 km |
| Event Dead Zone | 3 m |
| Sampling Resolution | 2.5 cm |
| Display | 7-inch capacitive touchscreen (800 × 480 TFT LCD) |
| Battery | 3.7 V / 4600 mAh Li-polymer with smart power management |
| Operating Wavelengths | 1310 / 1550 / 1625 / 1650 ±20 nm |
| Compliant File Formats | Bellcore GR-196, SR-4731 |
| Integrated Functions | OTDR, Optical Power Meter (OPM), Visual Fault Locator (VFL, 650 nm), Stable Light Source (LS), Live-fiber detection with automatic optical input warning |
| Interface | USB Type-C, microSD slot |
| Weight | ≤700 g (with battery) |
| Dimensions | ≤200 × 150 × 38 mm |
| Environmental Rating | Operating temperature 0–40 °C |
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