Modul serat optik yang mengubah MTTplus menjadi OTDR 1310/1550 nm dengan resolusi 3 cm, 500.000 titik sampel, dynamic range sampai 50 dB, dan event dead zone 0,85 m. Port terfilter 1625/1650 nm untuk uji jaringan yang sedang aktif, ditambah opsi OPM, light source, dan VFL. Geotag dan foto ikut tersimpan di tiap titik uji.
| type | OTDR module (MTTplus platform) |
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| wavelengths | 1310/1550//1625//1650 nm (singlemode) |
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| dynamic range | 38 to 50 dB (model dependent) |
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| event dz | 0.7 to 0.85 m typical |
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| atten dz | 3.5 m typical (4 m for 1550 nm 50 dB model) |
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| distance range | 0.1 to 400 km |
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| sampling points | Up to 500,000 |
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| sampling resolution | 3 cm to 16 m |
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| power range | −65 to +10 dBm (PM1) or −50 to +26 dBm (PM2) |
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| power accuracy | ±5 % (0.2 dB) |
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| output power | Over −2.5 dBm (optional OLS) |
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| connector | Fixed or universal interface with interchangeable adapters |
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| fiber types | Singlemode |
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| builtin | Optional OPM, OLS, VFL, internal launch fiber |
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| display | 7 inch TFT 800 × 480 color touchscreen (MTTplus platform) |
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| battery | Li ion 5800 mAh 10.8 V (MTTplus platform) |
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| storage | 8 GB USB flash (MTTplus platform) |
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| connectivity | USB, Ethernet, optional WiFi, BT (MTTplus platform) |
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| weight | 0.466 kg (module); 0.84 kg (MTTplus platform) |
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| dimensions | 188 × 168 × 80 mm (MTTplus platform) |
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| operating temp | −10 to 50 °C |
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| standards | Telcordia SR-4731, laser Class 1 21 CFR 1040.10 |
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