The Yokogawa AQ1200B is a handheld OTDR designed for installation, maintenance, and troubleshooting of optical fiber networks operating at 1625 nm. Its dedicated maintenance wavelength with built-in cut filter enables live network measurements while isolating the test signal from communication wavelengths. The instrument combines precision loss measurement, return loss analysis, and PON system capability in a compact, field-ready package.
Technical Specifications
• Wavelength: 1625 nm
• Event Dead Zone: ≤0.8 m
• Loss Measurement Accuracy: ±0.05 dB/dB (≤1 dB measured loss: ±0.05 dB)
• Loss Resolution: 0.001 dB minimum; displays one-way loss to 5 digits
• Vertical Scale Options: 0.2 dB/div, 0.5 dB/div, 1 dB/div, 2 dB/div, 5 dB/div, 7.5 dB/div
• Return Loss Measurement: Fiber cable and arbitrary point-to-point analysis
• PON System Measurement: Support up to 64 ports
• Optical Power Meter: Integrated with selectable measurement modes
• Continuous Wave (CW) Output: Available
• Visible Light Source (VLS): Optional
• Data Storage: Internal memory plus USB media support
• Report Format: CSV export
– Key Features
• Live fiber maintenance with 1625 nm wavelength isolation from communication bands
• Sub-meter event dead zone (≤0.8 m) for accurate splice and connector detection
• Per-unit-length loss and splice loss measurement between arbitrary trace points
• Splice loss and return loss analysis on PON networks up to 64 ports post-splitter
• LCD display with backlight and intuitive control interface (soft keys, rotary knob, arrow/enter keys)
• Handheld design with bumper protection and hand belt
• Operating environment: 23°C ±2°C nominal
– Interfaces & Connectivity
• LAN: 10BASE-T / 100BASE-TX
• USB Type B (Mini): PC connection and remote control
• USB Type A: External storage and accessory connection
• DC Power Connector: External power input
• Optical Power Meter Port: OPM module integration
– Typical Applications
• Fiber span characterization during cable installation
• Live network maintenance and fault location
• PON deployment verification and troubleshooting.
• Splice and connector loss validation.
