The Yokogawa AQ7270 is a high-performance Optical Time Domain Reflectometer (OTDR) designed for the installation, maintenance, and troubleshooting of optical fiber networks. Featuring an 8.4-inch color display, a rapid 10-second boot time, and versatile module options, the AQ7270 provides high-resolution trace analysis and reliability for field technicians.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | USB 1.1 Type A (Host) x 2, USB 1.1 Type B (Function) x 1, PCMCIA Type II Card Slot x 1, RJ-45 Ethernet (optional) |
| Display | 8.4-inch color TFT LCD, 640 x 480 pixels (VGA) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 to 240 VAC, 50/60 Hz (via AC adapter); 19 VDC (3.42 A) |
| Operating Temperature | 0 to 45 °C (0 to 40 °C when charging battery) |
| Dimensions (W×H×D) | 287 x 197 x 85 mm |
| Weight | 3.0 kg (including battery pack) |
Optical Measurement Specifications
| Parameter | Value |
|---|---|
| Distance Range Settings | 500 m, 1 km, 2 km, 5 km, 10 km, 20 km, 50 km, 100 km, 200 km, 400 km |
| Pulse Width Range | 3 ns, 10 ns, 20 ns, 50 ns, 100 ns, 200 ns, 500 ns, 1 μs, 2 μs, 5 μs, 10 μs, 20 μs |
| Event Dead Zone | 0.8 m (typical) |
| Minimum Sampling Interval | 5 cm |
| Number of Sampling Points | Up to 102,400 |
| Distance Measurement Accuracy | ±(0.75 m + distance × 2 × 10^-5 + sampling resolution) |
| Group Refractive Index Range | 1.30000 to 1.70000 (0.00001 steps) |
| Loss Readout Resolution | 0.001 dB |
| Applicable Fiber Type | Single-mode (SM) silica fiber (wavelength dependent) |
Power Supply & Battery
| Parameter | Value |
|---|---|
| Battery Type | Lithium-ion battery pack |
| Battery Operating Lifetime | Approx. 6 hours (typical field use) |
| Battery Charging Time | Approx. 5 hours (from power off) |
Display & User Interface
| Parameter | Value |
|---|---|
| Touchscreen Support | No |
Data Storage & Analysis Software
| Parameter | Value |
|---|---|
| File Formats | SOR (Telcordia GR-196-CORE), SET, TRD |
| Internal Data Storage Capacity | Approx. 1000 traces (internal flash memory) |
Visible Fault Locator (VFL) Options
| Parameter | Value |
|---|---|
| VFL Wavelength | 650 nm ± 15 nm (optional /VLS module) |
| VFL Output Power | -3 dBm or less (optional /VLS module) |
| VFL Laser Class | Class 2 (optional /VLS module) |
Built-in Light Source Options
| Parameter | Value |
|---|---|
| Light Source Modulation Modes | CW, 270 Hz, 1 kHz, 2 kHz (optional /SLS module) |
Environmental & Safety Compliance
| Parameter | Value |
|---|---|
| Storage Temperature | -20 to 60 °C (excluding battery) |
| Operating Humidity Range | 20% to 85% RH (non-condensing) |
Optical Performance
| Parameter | Value |
|---|---|
| OTDR Wavelengths | 850 / 1300 / 1310 / 1490 / 1550 / 1625 / 1650 nm (model dependent) |
| Dynamic Range | Up to 40 dB (model dependent) |
| Attenuation Dead Zone | 7 m (typical for single-mode, model dependent) |
| OTDR Wavelength Accuracy | ±20 nm |
| Loss Measurement Linearity | ±0.05 dB/dB |
Laser Safety
| Parameter | Value |
|---|---|
| OTDR Laser Safety Class | Class 1M |
Environmental
| Parameter | Value |
|---|---|
| Operating Altitude | Up to 3000 m |
Performance
| Parameter | Value |
|---|---|
| Startup Time | Under 10 s |
Optional Functions
| Parameter | Value |
|---|---|
| Optional Power Meter Wavelength Range | 800 to 1700 nm |
| Optional Power Meter Measurement Range | -50 to +10 dBm (Standard) / -50 to +26 dBm (High power) |
| Optional Stabilized Light Source Output Power | -5 dBm ±1.5 dB (single-mode, model dependent) |
External Interfaces
| Parameter | Value |
|---|---|
| PC Card Slot | PCMCIA Type II x 1 (supports CF card via adapter) |
| Ethernet Interface | 10BASE-T / 100BASE-TX (option /LAN) |
Options
| Parameter | Value |
|---|---|
| Built-in Printer | Thermal line printer, 58 mm paper width (option /PF) |
Optional Power Meter
| Parameter | Value |
|---|---|
| Optional Power Meter Accuracy | ±5% (under reference conditions) |
Optical Interfaces
| Parameter | Value |
|---|---|
| Optical Connector Type | Universal adapter (SC, FC, ST, or LC options) |
Compliance & Safety
| Parameter | Value |
|---|---|
| EMC Standards | EN61326-1 Class A, EN55011 Class A Group 1 |
| Safety Standards | EN61010-1 |
Technology
Fiber Optic OTDR
Applications
Fiber Optic Testing and Maintenance