<
>
GY-NK75 Module OTDR
OTDR;Fibre-optic cable monitoring;Line-finding device
Model：GY-NK75
Contact：
Huang
Email: Hqy@ybphotonics.com
Huang
Email: Hqy@ybphotonics.com
Introduction
The OTDR-75 is a compact OTDR module that can be integrated into an optical fibre monitoring system to enable the monitoring of optical fibre links.
Technical Specifications
| Model | NK75S | NK75D |
|---|---|---|
| Center Wavelength | 1550 | 1310/1550 |
| Dynamic Range 1 | 20dB | 22/20dB |
| Pulse Width | 3, 5, 10, 20,30, 50, 80,100, 200,300, 500, 1000,2000,3000, 5000,8000, 10000, 20000 ns | |
| Test Range | 0. 1,0.5,1.25, 2.5, 5, 10,20, 40, 80, 125, 180, 260 km | |
| Event Blind Zone 2 | ≤1.5m | |
| Attenuation Blind Zone 3 | ≤8m | |
| Sampling Interval | 0.03 ~4 m | |
| Maximum Number of Sampling Points | 320000（Accuracy） | 64000（Speed） |
| Refractive Index Setting Range | 1.000000 ~ 2.000000 | |
| Test Distance Uncertainty | ±(0.75 m + sampling interval + 0.005% × distance) | |
| Linearity | ±0.05 dB/dB | |
| Power Supply | +3V~+5V | |
| Power Consumption | ≤3W（25℃) | |
| Communication Interface | Serial Port: RS-232C, default baud rate 460,800 (configurable) | |
| Environmental Conditions | Operating Temperature and Humidity: -10°C to +50°C, ≤95% (non-condensing)Storage Temperature: -40°C to +70°C | |
Note:
1. Ambient temperature: 23°C ± 2°C; maximum test pulse width; test duration > 180 s; SNR = 1 (typical value).
2. Using a 3 ns pulse, return loss is typically between 35 dB and 55 dB.
3. Using a 3 ns pulse, return loss is typically 55 dB.
Product Inquiry
Leading manufacturer of photodetector modules and fiber optic sensing system modules