Network-port DAS data acquisition card, 250M sampling rate, built-in algorithms
Ethernet-based data acquisition board
Huang
Email: Hqy@ybphotonics.com
Product Info
Introduction
The data acquisition card is specifically designed for distributed fibre optic acoustic sensing systems, featuring a high-speed sampling rate of 250 MSps, dual-channel pulse trigger output capability, and an integrated IQ demodulation algorithm. Available in either Gigabit Ethernet or optical interface versions, it supports remote, independent deployment.
1. Overview
The GY-DAQ-2480 is a network interface-based DAS full-demodulation acquisition card featuring dual-channel 250 MSps synchronous trigger sampling.As a network interface DAS high-speed data acquisition card, it communicates with the host computer via Gigabit Ethernet or 10G optical ports. Utilising large-capacity data buffering and high-speed data transmission engine technology, it supports real-time uploading of raw and demodulated data. Data transfer rates reach up to 1000Mb/s, with optical port sampling transmission achieving 10Gb/s.The acquisition card employs a dual-channel 14-bit high-speed ADC with a sampling rate of 250 MSps, supporting DAS data acquisition over distances exceeding 100 kilometres.Featuring an integrated phase demodulation algorithm, it can directly upload amplitude-phase demodulated data. The phase data may be utilised directly by users as vibration signals without further demodulation processing, enabling full-cable demodulation. Alternatively, raw sampled data may be uploaded for user-conducted demodulation.
Compared to conventional IQ demodulation acquisition cards, this acquisition card incorporates an integrated phase demodulation algorithm module. This enables coherent fading suppression and global demodulation, significantly enhancing the accuracy and stability of the demodulated signal. It lays the foundation for subsequent signal processing and recognition. This eliminates the need for users to perform untwisting operations after acquiring data, reduces the system's CPU computational demands, and substantially lowers development complexity. It enables straightforward operation where data is ready for use upon reading, with phase directly representing vibration.
2. System Block Diagram
3. Specifications
1．14-bit dual-channel synchronous real-time sampling
2．250 MSps sampling rate
3．DC-coupled, 50Ω input impedance
4．2 Vpp input voltage range
5．Up to 60 dBc SFDR
6．Trigger output pulse
7．Optional Gigabit Ethernet or 10G optical port high-speed transmission interface
8．Built-in coherent fading suppression demodulation algorithm
Detailed Specifications
Functionality ADC Transmission Rate 1Gb/s (Gigabit) or 10Gb/s (fibre port) Resolution 14Bit Analogue Bandwidth 120MHz Sampling Rate 250MSps Resolution 0.4m, 0.8m, 1.6m, 3.2m, 6.4m available Number of Channels 2 Calibration Scale 2-32 Sampling points Demodulation Algorithm Coherent Attenuation Suppression for All-Optical Cable Demodulation Trigger Source Internal trigger: 3.3V/5V TTL outputExternal trigger: 3.3V TTL input Input Range 2Vpp Transmission Interface Gigabit Ethernet port or 10G optical port available Coupling Method DC Board Dimensions 150mm(L)x100mm(W)x28.2mm(D) Impedance 50Ω Operating Temperature -25℃-70℃ Signal-to-Noise Ratio 60dBc SFDR Storage Temperature -40℃-80℃ Acquisition Method Triggered collection Programming Environment C, C++, Python, MATLAB, etc. Power Consumption <12W System Platform Windows、Linux
4. Application
This acquisition card is also widely compatible with DAS fibre optic sensing coherent demodulation solutions, and is compatible with DAS modules from other manufacturers offering similar solutions.
5. Machine dimensions
150mm(L)x100mm(W)x28.2mm(D)
.
6. Interface Definition
1. Gigabit Ethernet interface: For data transmission and parameter configuration
2. 10G optical port: For data transmission and parameter configuration
3. Ch1: Acquisition channel 1
4. Ch2: Acquisition channel 2
5. Trig-in: External trigger, 3.3V input
6. Trig-out: Internal acquisition trigger output, 3.3V/5V selectable
Note: Only one model can be selected between Gigabit Ethernet and 10G optical port.
7. Ordering Information
Model Description Remarks GY-DAQ-2480-E Gigabit Ethernet Port Transmission GY-DAQ-2480-OE 10 Gigabit Ethernet port transmission Please specify if you need to use the optical port.
The data acquisition card is specifically designed for distributed fibre optic acoustic sensing systems, featuring a high-speed sampling rate of 250 MSps, dual-channel pulse trigger output capability, and an integrated IQ demodulation algorithm. Available in either Gigabit Ethernet or optical interface versions, it supports remote, independent deployment.
1. Overview
The GY-DAQ-2480 is a network interface-based DAS full-demodulation acquisition card featuring dual-channel 250 MSps synchronous trigger sampling.As a network interface DAS high-speed data acquisition card, it communicates with the host computer via Gigabit Ethernet or 10G optical ports. Utilising large-capacity data buffering and high-speed data transmission engine technology, it supports real-time uploading of raw and demodulated data. Data transfer rates reach up to 1000Mb/s, with optical port sampling transmission achieving 10Gb/s.The acquisition card employs a dual-channel 14-bit high-speed ADC with a sampling rate of 250 MSps, supporting DAS data acquisition over distances exceeding 100 kilometres.Featuring an integrated phase demodulation algorithm, it can directly upload amplitude-phase demodulated data. The phase data may be utilised directly by users as vibration signals without further demodulation processing, enabling full-cable demodulation. Alternatively, raw sampled data may be uploaded for user-conducted demodulation.
Compared to conventional IQ demodulation acquisition cards, this acquisition card incorporates an integrated phase demodulation algorithm module. This enables coherent fading suppression and global demodulation, significantly enhancing the accuracy and stability of the demodulated signal. It lays the foundation for subsequent signal processing and recognition. This eliminates the need for users to perform untwisting operations after acquiring data, reduces the system's CPU computational demands, and substantially lowers development complexity. It enables straightforward operation where data is ready for use upon reading, with phase directly representing vibration.
2. System Block Diagram
3. Specifications
1．14-bit dual-channel synchronous real-time sampling
2．250 MSps sampling rate
3．DC-coupled, 50Ω input impedance
4．2 Vpp input voltage range
5．Up to 60 dBc SFDR
6．Trigger output pulse
7．Optional Gigabit Ethernet or 10G optical port high-speed transmission interface
8．Built-in coherent fading suppression demodulation algorithm
Detailed Specifications
| Functionality | ADC | Transmission Rate | 1Gb/s (Gigabit) or 10Gb/s (fibre port) |
|---|---|---|---|
| Resolution | 14Bit | Analogue Bandwidth | 120MHz |
| Sampling Rate | 250MSps | Resolution | 0.4m, 0.8m, 1.6m, 3.2m, 6.4m available |
| Number of Channels | 2 | Calibration Scale | 2-32 Sampling points |
| Demodulation Algorithm | Coherent Attenuation Suppression for All-Optical Cable Demodulation | Trigger Source | Internal trigger: 3.3V/5V TTL outputExternal trigger: 3.3V TTL input |
| Input Range | 2Vpp | Transmission Interface | Gigabit Ethernet port or 10G optical port available |
| Coupling Method | DC | Board Dimensions | 150mm(L)x100mm(W)x28.2mm(D) |
| Impedance | 50Ω | Operating Temperature | -25℃-70℃ |
| Signal-to-Noise Ratio | 60dBc SFDR | Storage Temperature | -40℃-80℃ |
| Acquisition Method | Triggered collection | Programming Environment | C, C++, Python, MATLAB, etc. |
| Power Consumption | <12W | System Platform | Windows、Linux |
4. Application
This acquisition card is also widely compatible with DAS fibre optic sensing coherent demodulation solutions, and is compatible with DAS modules from other manufacturers offering similar solutions.
5. Machine dimensions
150mm(L)x100mm(W)x28.2mm(D)
.
6. Interface Definition
1. Gigabit Ethernet interface: For data transmission and parameter configuration
2. 10G optical port: For data transmission and parameter configuration
3. Ch1: Acquisition channel 1
4. Ch2: Acquisition channel 2
5. Trig-in: External trigger, 3.3V input
6. Trig-out: Internal acquisition trigger output, 3.3V/5V selectable
Note: Only one model can be selected between Gigabit Ethernet and 10G optical port.
7. Ordering Information
| Model | Description | Remarks |
|---|---|---|
| GY-DAQ-2480-E | Gigabit Ethernet Port Transmission | |
| GY-DAQ-2480-OE | 10 Gigabit Ethernet port transmission | Please specify if you need to use the optical port. |
