DAS hardware all-in-one machine for distributed fiber optic acoustic sensing system hardware part. All-in-one machine using 3U chassis, chassis internal integration of DAS integration module, acousto-optic modulator driver, power supply module, industrial computer.
Huang
Email: Hqy@ybphotonics.com
1.1 Overview
DAS hardware all-in-one machine for distributed fiber optic acoustic sensing system hardware part, such as [Figure 1-1]. All-in-one machine using 3U chassis, chassis internal integration of DAS integration module, acousto-optic modulator driver, power supply module, industrial computer, etc., the system industrial computer default installation of windows system. The back of the chassis is left with FC/APC sensing fiber optic cable interface for external sensing fiber optic cable. The all-in-one machine is specially designed for distributed fiber optic acoustic sensing, perimeter security equipment manufacturers to provide high-quality supporting products and solutions.
1.2 Characteristics
1.3 Applications
1.4 Structure of the test platform

【Figure 1-2】 Schematic diagram of test platform structure
1.5 Optical path structure

【Figure 1-3】 Schematic diagram of light path structure
Chapter 2 Product specifications
2.1 Performance Parameters
Table 2-1 Performance Parameters
| All-in-one machine | Min. | Type. | Max. | Unit | Notes |
|---|---|---|---|---|---|
| Power | 220 | W | |||
| Working voltage | 220 | V | AC | ||
| Working temperature | -20 | 60 | ℃ | ||
| Storage temperature | -30 | 70 | ℃ | ||
| Module parameters | Min. | Type. | Max. | Unit | Notes |
| Measuring Distance | 60 | km | |||
| Pulse width | 50 | 500 | ns | ||
| Warm-up time | <10 | Min | |||
| Working Voltage | 4.8 | 5.2 | V | DC | |
| Power | 3.5 | 9 | 15 | W | |
| Working temperature | -20 | 60 | ℃ | ||
| Storage temperature | -30 | 70 | ℃ | ||
| Communication interface | RS-232 | ||||
| Communication protocol | Modbus-RTU | ||||
| Ultra-narrow linewidth light source | Min. | Type. | Max. | Unit | Notes |
| Working wavelength | 1530 | 1550 | 1570 | nm | |
| Output power | 10 | 13 | dBm | ||
| Line width | <3 | kHz | |||
| Relative intensity noise | <120 | dB/Hz | |||
| Wavelength drift | ±1 | pm | |||
| Power stability | ±2% | Full temperature range | |||
| Side mode rejection ratio | 60 | dB | |||
| Pulse EDFA | Min. | Type. | Max. | Unit | Notes |
| Working wavelength range | 1550.12 | nm | |||
| Input peak optical power | 10 | dBm | |||
| Input average optical power | -35 | -30 | dBm | ||
| Output peak optical power | 23 | dBm | |||
| Output average optical power | 0 | dBm | |||
| Repetition rate | 100 | kHz | |||
| Coefficient of noise | 5.5 | dB | |||
| Polarization Related Gain | 0.5 | dB | |||
| Polarized mode dispersion | 0.5 | ps | |||
| Acousto-optic modulator | Min. | Type. | Max. | Unit | Notes |
| Working wavelength range | 1520 | 1550 | 1580 | nm | |
| Average optical power | 0.5 | W | |||
| Maximum pulsed light power | 0.5 | kW | |||
| Insertion Losses | 2.5 | 3 | dB | ||
| Extinction ratio | 50 | dB | |||
| Rise/fall time | 30 | ns | |||
| Frequency | 80 | MHz | |||
| Standing wave ratio | 1.2:1 | ||||
| Input Impedance | 50 | Ω | |||
| RF power | 2.5 | W | |||
| Frequency shift | 80 | MHz | |||
| Raman amplifier | Min. | Type. | Max. | Unit | Notes |
| Laser wavelength | 1455 | nm | |||
| Output power range | 25 | 27 | dBm | ||
| Balance detector | Min. | Type. | Max. | Unit | Notes |
| Bandwidths | 80 | MHz | |||
| Gain | 80 | kV/A | |||
| NEP | 30 | pW/Sqrt(Hz) | |||
2.2 Hardware configuration
2-2 Hardware Configuration
| Configuration Name | Specification/Model |
|---|---|
| Motherboard | MPG Z790I EDGE WIFI |
| CPU | intel i5 12400 |
| Random access memory (RAM) | 16GB-DDR5-6000 |
| Solid State Drive | 500G-M.2 |
| Power supply | 500W FLEX-500G |
| DAQ Board | GY-DAS-250-DAQ |
| Acousto-Optical Modulator Driver | 80M |
| Integration module | DAS Integration Module |
2.3 External interface
Table 2-3 External Interfaces
| Name | Specification/Model |
|---|---|
| Sensor Fiber Optic Interface | FC/APC flange × 1 (or × 2) |
| Display Interface | HDMI port × 1, DisPlayPort port × 1 |
| USB port | USB 3.2 Gen2x2 20Gbps Type-C port ×1USB 3.2 Gen 1 5Gbps Type-A port ×4USB 3.2 Gen 2 10Gbps Type-A port × 2USB 2.0 Type-A port ×2 |
| Network interface | 2.5 Gbps LAN port × 1, on-board WIFI × 1 |
| Power connector | AC220V×1 |
| High Definition Audio Interface | Line In/Front Speakers/Microphone |
2.4 Preinstalled software
Table 2-4 Pre-installed Software
| Name | Specification/Model |
|---|---|
| Operating system | Windows 10 |
| Test DEMO software | DAS Test DEMO Software |
Chapter 3 Product Dimensions and Interface Description
3.1 Description of product dimensions

3.2 Product Interface Description

Delivery Pictures



| Product Type | Universal DAS hardware all-in-one | Enhanced DAS hardware all-in-one | High-performance DAS hardware all-in-one |
|---|---|---|---|
| Image | ![]() | ![]() | ![]() |
| modulation scheme | single-pulse modulation | single-pulse modulation | sweep modulation |
| demodulation | Digital IQ demodulation, fpga+upper computer software demodulation | Digital IQ demodulation, fpga+upper computer software demodulation | Chirp demodulation |
| Inhibition of Coherent Decay | Not implemented (users can implement it themselves) | implemented | implemented |
| Full-area phase demodulation | implemented | implemented | implemented |
| spatial resolution | 6-10 meters (2-3 meters at the limit) | 6-10 meters (2-3 meters at the limit) | 2meters |
| signal-to-noise ratio: | general | general | high |
| sensitivity: | general | general | high |
| Market Prevalence: | More (basically this program) | Less | Less(Only 2-3 in China) |
| Acquisition Signal: | IF signal | IQ Signal Acquisition | IF signal (complete signal acquisition) |
| Acquisition Channel: | single channel | dual channel | single channel |
| Demodulation flexibility: | High (flexibility to modify different algorithms) | Low (fixed single IQ demodulation algorithm) | High (flexibility to modify different algorithms) |
| Detection distance: | 30km/50km | 30km/50km | 20km/40km |
| detection frequency: | 50kHz@1km | 50kHz@1km | 50kHz@1km |
| response band: | 1Hz-20kHz(Distance Related) | 1Hz-20kHz(Distance Related) | 1Hz-20kHz(Distance Related) |
| Fiber Type: | Single mode G652/G652D | Single mode G652/G652D | Single mode G652/G652D |
| optical connector: | FC/APC | FC/APC | FC/APC |
| communication interface: | PCIE/Ethernet | PCIE/Ethernet | PCIE/Ethernet |
| dimension: | 482*390*133mm | 482*500*178mm | 482*500*178mm |
| electricity supply: | AC220V | AC220V | AC220V |
| power wastage: | 220W | 480W | 480W |