The SE2404NTN series seismic data acquisition system is a portable wired telemetry seismic data acquisition system. This system uses advanced networking technology for distributed real-time data acquisition and display. The system is composed of the SE2404NTN main control unit, a data acquisition station (RSU), a central hub (CSU), digital transmission composite cables, and remote detonation decoder. It can be widely applied wherever high precision two or three dimensional seismic surveying is required, such as surveying for engineering, coal, minerals, and/or hydroelectric power.

Main Properties
1. Using networking and control technology, the system can be extended with up to 2048 sensor modules.
2. The main control unit is equipped with two data flow ports and built-in remote detonation encoder.
3. Real time data display, storage, and playback.
4. Data acquisition modules use true 24 bit high precision analog to digital converters and open addressing technology, and have large dynamic ranges, low power consumption, and are easy to use.
5. Data acquisition modules each has 12 channels, a water-proof cast-aluminum shell, and are small, lightweight and easy to maintain.
6. The central hub has a 10Mbps transmission speed and can support up to 256 modules, and is small, lightweight and easy to maintain.
7. The transmission range between the remote control encoder and decoder is 10 km on open ground. The system uses a safety protocol to raise its reliability and safety. The design includes two high precision auxiliary channels.
8. The system is developed using Windows, field usage is simple and quick. The system is designed for both oil surveying seismic technology and engineering seismic surveying.

Main Technical Specifications
Main Control Unit (SE2404NTn):
Windows 7 operating system
Intel (R) Atom (TM) CPU N570 1.66GHz, 1.67GHz RAM 2.00 GB 250 GB HD 12 inch, 1366x768

Data flow ports: 1 (10 Mbps)
Built-in remote detonation encoder: 433-435 MHz, 1W, 8 channels
Built-in timing GPS (optional): 15 meter positional accuracy, 0.5 microsecond timing accuracy
Built-in auxiliary channel: TB channel / 
Printer and tape drives (optional): PC compatible USB printer and tape drive
Control software:
    Monitoring system
    Seismic data acquisition, data quality control
    Real-time noise monitoring, data display and recording

RSU-2 Data Acquisition Unit Technical Specifications
A/D Converter:        ΔΣ24 bit
Localisation:        automatic self-localisation
Data filtering:        linear filter
Number of channels:    12
Sampling frequency:    0.025 - 10 ms (selectable)
Longest length:        31 kB/channel
Frequency response range: 1 - 1500 Hz
Cross-channel suppression: < -100 dB
Dynamic range:        120 dB
Harmonic distortion:     -114 dB
Largest input signal:    1.6 V rms
Noise level:        < 1 uV rms
Power usage:        2.5 W / unit
Operating temperature:     -40 to 80 degrees C
Storage temperature: -40 to 70 degrees C
Weight:            1.6 kg
Size:            200 x 90 x 180 mm
Power source:        built-in lithium battery, 18 hours battery life

BOMTEX 2 Remote Detonator Technical Specifications
Remote control distance:    2 km (open ground)
Frequency range:        433 - 435 MHz / 1 W / 8 channels
Timing GPS (optional):        15 meter positional accuracy, 0.5 microsecond timing accuracy
Detonation voltage:        500 V
Detonation interval:        20 s
Trigger error:            < 100 microseconds
Trigger error calibration:    TB Channel
Battery life on standby mode:    36 hours
Operating temperature:        -40 to 80 degrees C
Storage temperature:         -40 to 70 degrees C

CUS256 Central Hub Technical Specifications
Transmission speed:        4 Mbps
Maximum number of units:    256
Size:                250 x 100 x 200 mm
Weight:                2.0 kg
Power source:            built-in lithium battery, 18 hours battery life