Ando AQ7250 SM Fiber Mini OTDR
The Ando AQ7250 is a compact and lightweight mini OTDR (Optical Time Domain Reflectometer) designed for testing and troubleshooting optical fiber networks. It features a short dead zone and high dynamic range, making it suitable for various applications, including FTTx, LAN/WAN, and metro networks. Its user-friendly interface and comprehensive analysis functions simplify fiber optic testing.
- Model
- Ando AQ7250
- Calibration
- Available on request
- Price
- $1,639
- Status
- In stock
- RFQ ref
- AQ7250
This unit
The Ando AQ7250 SM Fiber Mini OTDR is a compact, portable optical time domain reflectometer engineered for single-mode and multi-mode fiber network testing, fault detection, and loss measurement. Built for field installation, maintenance, and troubleshooting, it delivers high-speed operation via single-button control and an intuitive interface. The unit combines high-resolution measurements with extensive data storage - up to 999 screens and measurement conditions - supported by onboard OTDR analysis software and dual-language menus (English/Japanese).
Technical Specifications
Optical Performance- Supported fiber types: Single-mode (10/125 µm), Multi-mode (850/1300 µm)
- Measurement wavelengths: 850 nm, 1300 nm, 1310 nm, 1550 nm, 1625 nm
- Dynamic range (SNR=1): 43/41 dB typical at 1310/1550 nm (AQ7255B); 36/34 dB at 1310/1550 nm (AQ7254B); 41.5/39.5/37 dB at 1310/1550/1625 nm (AQ7256B)
- Event dead zone: 3 m
- Attenuation dead zone: 8/9 m (1310/1550 nm); 10/12 m; 8/9/12 m (wavelength-dependent)
- Distance ranges: 2, 5, 10, 20, 40, 80, 160, 240 km
- Pulse widths: 10 ns to 20 µs (nine selectable options)
- Splice loss measurement: 0.5 dB detectable at 70 km within 20 seconds
- Return loss measurement: Up to 18 dB (near-end, single-mode unit) Light Source
- Wavelengths: 1.31/1.55 µm and 1.31/1.55/1.625 µm variants
- Maximum output: -3 ± 2 dBm
- Stability: ±0.1 dB
- Laser class: Class 1 (FDA), Class 3A (IEC) Display & Analysis
- 7.2-inch color LCD (640×480 dots) with selectable background
- Horizontal axis: 25 m to 240 km full-scale ranges; variable resolution
- Vertical axis: 0.2–7.5 dB/div scale; 0.001 dB read resolution
Key Features
- Improved measurement algorithm for reduced processing time
- Extensive onboard storage with optional PCMCIA hard disk and IC memory card support
- Multi-wavelength capability across telecom C- and L-bands
- Variable pulse widths optimize near-field resolution and long-distance reach
Typical Applications
- Long-haul single-mode fiber plant commissioning and maintenance
- Splice and connector characterization at extended distances
- Return loss assessment in optical networks
- Rapid field troubleshooting with minimal setup time
Compatibility & Integration The AQ7250 platform accepts interchangeable single-mode and multi-mode fiber units (AQ7254B, AQ7255B, AQ7256B) to match specific wavelength and dynamic range requirements. OTDR analysis software facilitates data interpretation and archival via removable media.
Specifications
| Parameter | Value |
|---|---|
| Power Range (dBm) | '-3 ± 2 dBm | Wavelength Range: 1300 nm, 1310 nm, 1550 nm, 1625 nm, 850 nm |
Ando AQ7250 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Ando AQ7250. Calibration covers distance accuracy verified against a calibrated fiber length reference, event loss measurement accuracy at splice and connector events, dead zone (event and attenuation) at rated pulse width, dynamic range verification at 1310 nm and 1550 nm, backscatter coefficient calibration, and return loss measurement accuracy. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Ando AQ7250 faults: optical port connector damage or contamination, battery failure, display damage from field use, module failure on FTB or MTS platforms, calibration drift. Most field OTDRs fail due to physical damage. On modular platforms (EXFO FTB, Viavi MTS), individual module failures are serviced without replacing the entire mainframe. Optical port cleaning resolves many apparent measurement faults before mechanical repair is needed.
Ando AQ7250 price
This Ando AQ7250 is listed at $1,639. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Ando AQ7250 calibration cost
NIST-traceable calibration for the Ando AQ7250 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers distance accuracy verified against a calibrated fiber length reference, event loss measurement accuracy at splice and connector events, dead zone (event and attenuation) at rated pulse width, dynamic range verification at 1310 nm and 1550 nm, backscatter coefficient calibration, and return loss measurement accuracy. Turnaround is 1 to 3 business days after receipt. See full calibration details →
