The Yokogawa AQ7283J is a modular Optical Time Domain Reflectometer (OTDR) engineered for comprehensive single-mode fiber characterization across metro, access, and FTTH networks. It delivers four-wavelength operation—1310 nm, 1383 nm, 1550 nm, and 1625 nm—with specialized capability to measure water-peak absorption in low-OH fibers and perform live-line testing without disrupting active communications traffic.
Technical Specifications
Wavelengths: 1310 ±25 nm, 1383 ±2 nm, 1550 ±25 nm, 1625 ±25 nm
Applicable Fiber: Single-Mode (SM) per ITU-T G.652
Distance Range: 0.2 km through 512 km in 14 selectable increments
Pulse Width: 3 ns to 20 µs across 14 settings
Event Dead Zone: 0.6 m
Attenuation Dead Zone: 3.5 m (1383 nm), 4 m (1550 nm and 1625 nm)
Dynamic Range: 42 dB (1310 nm), 39 dB (1383 nm), 40 dB (1550 nm and 1625 nm)
Laser Classification: Class 1M (1383/1550/1625 nm); Class 3R (1310 nm)
Display: 8.4-inch color TFT LCD, 800 × 600 pixels resolution
Storage: ≥1000 waveforms internally; USB and SD card external storage
– Key Features
• 1383 nm wavelength for water-peak measurement and CWDM fiber qualification
• 1625 nm filtered port enables live-line measurement without signal disruption
• Smart Mapper automatic measurement with PASS/FAIL judgment
• Multi-trace comparison and macro-bend detection via wavelength waveform analysis
• Multi-touch capacitive touchscreen with hard-key button operation
• Fault locator with one-tap PDF report generation
• Internal post-processing software for curve analysis and documentation
– Typical Applications
• Single-mode fiber installation and maintenance verification
• Low-OH fiber characterization in CWDM network feasibility studies
• Live-network OTDR measurement without service interruption
• Optical fiber manufacturing and cabling process inspection
• Macro-bending detection through comparative wavelength analysis
– Compatibility & Integration
Interfaces include one Unit port, one Module port, three USB ports (Type A ×2, Type B mini ×1), optional Ethernet 10/100BASE-T, and SD card slot. Remote control via USB or TCP/IP. Supported file formats: SOR, CSV, SET, BMP, JPG, CFG, and PDF.
