Developed for real field applications & live streaming of geophysical measurements
SEISMIC DATA RECORDER & IP COMMUNICATION
DATA-CUBE³ is a 3-channel seismic recorder and was initially developed at GFZ in 2011 and later modified in close cooperation between GFZ and Omnirecs/DiGOS. It has been developed to meet the requirements which have been identified by GFZ during many years of seismic network operations in the field and various international measurement campaigns in harsh environments. The CCUBE is the ideal add-on for the DATA-CUBE³ for live streaming of seismic measurements.
SEISMIC DATA RECORDER & IP COMMUNICATION
Developed for real field applications & live streaming of geophysical measurements
DATA-CUBE³ is a 3-channel seismic recorder and was initially developed at GFZ in 2011 and later modified in close cooperation between GFZ and Omnirecs/DiGOS. It has been developed to meet the requirements which have been identified by GFZ during many years of seismic network operations in the field and various international measurement campaigns in harsh environments. The CCUBE is the ideal add-on for the DATA-CUBE³ for live streaming of seismic measurements.
DATA-CUBE³
TYPE 1 (INT)
Internal GPS version for outdoor installations for active seismic measurement campaigns of up to two weeks with two D-cell alkaline batteries or long-term deployments with external power supply.
DATA-CUBE³ Type 1
Frontview
A/D converter
- Type: Delta-Sigma 24 Bit ADC resolution: 24 Bit per channel ADC channels: 3 ADC dynamic range: 125db @ 100sps (128db @ 50sps)
- Effective resolution: 22.4 bit @ 100sps @ gain 1 (typical)
- ADC sample rates: 50, 100, 200 or 400sps in 3 channel mode, 800sps in 1 channel mode
- ADC gain selection: 1, 2, 4, 8, 16, 32, 64 ADC noise level: 10µV/sqrt(Hz)
- Full scale input: 4,096Vpp @ gain 1
- Input impedance: 100kOhm
- Signal input voltage: Adjusted by customized breakout box according to sensor specification
Time base
- Type: GPS synchronized free running internal quartz
- GPS: GPS receiver built-in GPS accuracy: 1µs
- GPS antenna: External (included with 3-5m cable)
- Free running accuracy: <0.01ms with processing (resampling), <10ms for 20 days without processing
Data storage
- Storage type: SDHC memory card (internal)
- Capacity: Up to 32GB (ca. 280 days @ 100sps)
- Recording type: Continuous recording
- Recording format: Raw (miniSEED & SEG-Y offline converter software included)
Local user interfaces
- Serial port: Monitoring, additional sensor modules on request
- USB 2.0: Configuration, setup, data download (16MB/s)
- LEDs: Indicating status of system, acquisition, GPS timing and data storage
Connectors
- Sensor: MIL-C-2684 A12-10S
- Communication: MIL-C-2684 A10-07P
- Power: MIL-C2684 A08-04P
- GPS antenna: BNC (female)
Power supply
- Input voltage: 5-24V DC
- Battery: External via separate cable
- Power consumption: 197mW (rated for 100sps & GPS active 5min per 30min)
Physical
- Size: 100 x 100 x 83mm (830ml)
- Weight: 850g
- Operating outdoor temperature: -20 – 70°C (lower temperature version available)
- Housing: Reinforced plastic
- Shock resilience: 5g (sinus)
- Waterproof: IP67 (1m water depth for 48 hours)
Equipment
- Transportation: Rugged aluminium box for up to 12 DATA-CUBE³ for eady handling & deployment in the field
If you need Equipment like Cables, Connectors or Breakoutboxes (BOBs)
DATA-CUBE³
TYPE 2 (EXT)
External GPS version for long-term outdoor, vault or indoor installations for passive seismological measurement campaigns.
DATA-CUBE³ Type 2
Frontview
A/D converter
- Type: Delta-Sigma 24 Bit
- ADC resolution: 24 Bit per channel
- ADC channels: 3
- ADC dynamic range: 125db @ 100sps (128db @ 50sps)
- Effective resolution: 22.4 bit @ 100sps @ gain 1 (typical)
- ADC sample rates: 50, 100, 200 or 400sps in 3 channel mode, 800sps in 1 channel mode
- ADC gain selection: 1, 2, 4, 8, 16, 32, 64
- ADC noise level: 10µV/sqrt(Hz)
- Full scale input: 4,096Vpp @ gain 1 Input impedance: 100kOhm
- Signal input voltage: Adjusted by customized breakout box according to sensor specification
Time base
- Type: GPS synchronized free running internal quartz
- GPS: GPS receiver built-in GPS accuracy: 1µs
- GPS antenna: External (included with 3-5m cable)
- Free running accuracy: <0.01ms with processing (resampling), <10ms for 20 days without processing
Data storage
- Storage type: SDHC memory card (internal)
- Capacity: Up to 32GB (ca. 280 days @ 100sps)
- Recording type: Continuous recording
- Recording format: Raw (miniSEED & SEG-Y offline converter software included)
- Local user interfaces Serial port: Monitoring, additional sensor modules on request
- USB 2.0: Configuration, setup, data download (16MB/s)
- LEDs: Indicating status of system, acquisition, GPS timing and data storage
Connectors
- Sensor: MIL-C-2684 A12-10S
- Communication: MIL-C-2684 A10-07P
- Power: MIL-C2684 A08-04P
- GPS antenna: BNC (female)
Power supply
- Input voltage: 5-24V DC
- Battery: External via separate cable
- Power consumption: 197mW (rated for 100sps & GPS active 5min per 30min)
Physical
- Size: 100 x 100 x 83mm (830ml)
- Weight: 850g
- Operating outdoor temperature: -20 – 70°C (lower temperature version available)
- Housing: Reinforced plastic Shock resilience: 5g (sinus)
- Waterproof: IP67 (1m water depth for 48 hours)
Equipment
- Transportation: Rugged aluminium box for up to 12 DATA-CUBE³ for eady handling & deployment in the field
If you need Equipment like Cables, Connectors or Breakoutboxes (BOBs)
COMMUNICATION
CUBE (CCUBE)
The CCUBE (Communication CUBE) is the optimal DATA-CUBE³ extension for near real-time seismic data streaming in miniSEED format (seedlink).
CCUBE
Frontview
System performance
- System architecture: ARM9
- Operating frequency: 400MHz
- System RAM: 256MB
- Operating system: Embedded Debian Linux Recovery: 64MB (buffering up to 1 day @ 100sps, configurable)
Data streaming
- Format: miniSEED via seedlink server & CUBE plugin
- Live streaming: Yes
- Data buffering: Yes, default 1 day @ 100sps in case of communication outage (STEIM2 compressed)
Time synchronization
- NTP: NTP synchronization via Internet
Communication
- WiFi: 802.11bgn
- WiFi configurations: Client in managed network, ad-hoc or meshing
- WiFi meshing: Supported via B.A.T.M.A.N (see http://open-mesh.org)
- WiFi meshing distance: 800m between CCUBEs with free line-of-sight & omni-directional antennas at 2m height
- WiFi meshing bandwidth: 4MBit/s for 800m distance between CCUBEs (see above)
- Mobile broadband (cellular network): 4G/LTE, 3G/UMTS and 2.5G/EDGE (securely tightened SIM card slot with screwed and sealed cap)
- Ethernet: 100MBit/s VSAT & BGAN:
- Supported via Ethernet interfaces
Remote operation
- VPN access: Yes (OpenVPN)
- Remote login: Yes (SSH)
- Monitoring: Yes (system voltage, temperature, communication status & performance)
Local operation
- RS-232 / USB: Terminal access
- LEDs: Indicating status of Ethernet connection, system load, 4G/LTE, WiFi and seismic data acquisition
Connectors
- Data out: MIL-C-2684 12-10P (Ethernet, USB, RS-232)
- WiFi antenna: RP-SMA (feale)
- Mobile broadband antenna: FME (female)
- DATA-CUBE³ input: MIL-C-2684 10-07S
- Power: MIL-C-2684 08-04P
Power supply
- Input voltage: 10.5-24V DC
- Battery: External battery or power supply required
- Power consumption: Idle: 360mW
- Streaming via Ethernet: 700mW
- Streaming via WLAN: 820mW
- Streaming via 4G/LTE (typical): <1W Power consumption rated for CCUBE only. DATA-CUBE³ must be added (~300mW running in continuous GPS acquisition mode).
Physical
- Size: 100 x 100 x 83mm (830ml)
- Weight: 730g
- Operating outdoor temperature: -10 – 60°C (other temperature versions on request)
- Housing: Reinforced plastic
- Waterproof: IP67
Equipment
- Transportation: Rugged aluminium box for up to 12 CCUBE for eady handling & deployment in the field
It streams in miniSEED format to a seedlink server via 4G/3G (LTE/UMTS), WiFi (meshing supported) or an extern Ethernet-based communication device (VSAT, BGAN, DSL, etc.).
If you need Equipment like Cables, Connectors or Breakoutboxes (BOBs)
DATA-CUBE³
TYPE 1 (INT)
DATA-CUBE³
TYPE 2 (EXT)
COMMUNICATION CUBE
(CCUBE)
Internal GPS antenna for outdoor installations. Best suited for active seismic measurement campaigns of up to two weeks with two D-cell alkaline batteries or long-term deployments with external power supply.
External GPS version. Ideal solution for long-term outdoor, vault or indoor installations for passive seismological measurement campaigns.
The CCUBE (Communication CUBE) is the optimal DATA-CUBE³ extension for near real-time seismic data streaming in miniSEED format (seedlink).
DATA-CUBE³ Type 1
Frontview
A/D converter
- Type: Delta-Sigma 24 Bit
- ADC resolution: 24 Bit per channel
- ADC channels: 3
- ADC dynamic range: 125db @ 100sps (128db @ 50sps)
- Effective resolution: 22.4 bit @ 100sps @ gain 1 (typical)
- ADC sample rates: 50, 100, 200 or 400sps in 3 channel mode, 800sps in 1 channel mode
- ADC gain selection: 1, 2, 4, 8, 16, 32, 64
- ADC noise level: 10µV/sqrt(Hz)
- Full scale input: 4.096Vpp @ gain 1
- Input impedance: 100kOhm
- Signal input voltage: Adjusted by customized breakout box according to sensor specification
Time base
- Type: GPS synchronized free running internal quartz
- GPS: GPS receiver built-in
- GPS accuracy: 1µs
- GPS antenna: Internal (under top cover)
- Free running accuracy: <0.01ms with processing (resampling), <10ms for 20 days without processing
Data storage
- Storage type: SDHC memory card (internal)
- Capacity: Up to 32GB (ca. 280 days @ 100sps)
- Recording type: Continuous recording
- Recording format: Raw (miniSEED & SEG-Y offline converter software included)
Local user interfaces
- Serial port: Monitoring, additional sensor modules on request
- USB 2.0: Configuration, setup, data download (16MB/s)
- LEDs: Indicating status of system, acquisition, GPS timing and data storage
Connectors
- Sensor: MIL-C-2684 A12-10S
- Power & Communication: MIL-C-2684 A10-07P
Power supply
- Input voltage: 5-24V DC
- Battery: Internal (2x D-cells) or external
- Power consumption: 120mW (rated for 100sps & GPS active 5min per 30min)
Physical
- Size: 100 x 100 x 83mm (830ml)
- Weight: 890g
- Operating outdoor temperature: -20 – 70°C (lower temperature version available)
- Housing: Reinforced plastic
- Shock resilience: 5g (sinus)
- Waterproof: IP67 (1m water depth for 48 hours)
Equipment
- Transportation: Rugged aluminium box for up to 12 DATA-CUBE³ for eady handling & deployment in the field
If you need Equipment like Cables, Connectors or Breakoutboxes (BOBs)
DATA-CUBE³ Type 2
Frontview
A/D converter
- Type: Delta-Sigma 24 Bit
- ADC resolution: 24 Bit per channel
- ADC channels: 3
- ADC dynamic range: 125db @ 100sps (128db @ 50sps)
- Effective resolution: 22.4 bit @ 100sps @ gain 1 (typical)
- ADC sample rates: 50, 100, 200 or 400sps in 3 channel mode, 800sps in 1 channel mode
- ADC gain selection: 1, 2, 4, 8, 16, 32, 64
- ADC noise level: 10µV/sqrt(Hz)
- Full scale input: 4.096Vpp @ gain 1
- Input impedance: 100kOhm
- Signal input voltage: Adjusted by customized breakout box according to sensor specification
Time base
- Type: GPS synchronized free running internal quartz
- GPS: GPS receiver built-in
- GPS accuracy: 1µs
- GPS antenna: External (included with 3-5m cable)
- Free running accuracy: <0.01ms with processing (resampling), <10ms for 20 days without processing
Data storage
- Storage type: SDHC memory card (internal)
- Capacity: Up to 32GB (ca. 280 days @ 100sps)
- Recording type: Continuous recording
- Recording format: Raw (miniSEED & SEG-Y offline converter software included)
Local user interfaces
- Serial port: Monitoring, additional sensor modules on request
- USB 2.0: Configuration, setup, data download (16MB/s)
- LEDs: Indicating status of system, acquisition, GPS timing and data storage
Connectors
- Sensor: MIL-C-2684 A12-10S
- Communication: MIL-C-2684 A10-07P
- Power: MIL-C2684 A08-04P
- GPS antenna: BNC (female)
Power supply
- Input voltage: 5-24V DC
- Battery: External via separate cable
- Power consumption: 197mW (rated for 100sps & GPS active 5min per 30min)
Physical
- Size: 100 x 100 x 83mm (830ml)
- Weight: 850g
- Operating outdoor temperature: -20 – 70°C (lower temperature version available)
- Housing: Reinforced plastic
- Shock resilience: 5g (sinus)
- Waterproof: IP67 (1m water depth for 48 hours)
Equipment
- Transportation: Rugged aluminium box for up to 12 DATA-CUBE³ for eady handling & deployment in the field
If you need Equipment like Cables, Connectors or Breakoutboxes (BOBs)
CCUBE
Frontview
System performance
- System architecture: ARM9
- Operating frequency: 400MHz
- System RAM: 256MB
- Operating system: Embedded Debian Linux
- Recovery: Default 64MB (buffering up to 1 day @ 100sps, configurable up to >7 days)
Data streaming
- Format: miniSEED via seedlink server & CUBE plugin
- Live streaming: Yes
- Data buffering: Yes, default 1 day @ 100sps in case of communication outage (STEIM2 compressed)
Time synchronization
- NTP: NTP synchronization via Internet
Communication
- WiFi: 802.11bgn
- WiFi configurations: Client in managed network, ad-hoc or meshing
- WiFi meshing: Supported via B.A.T.M.A.N (see http://open-mesh.org)
- WiFi meshing distance: 800m between CCUBEs with free line-of-sight & omni-directional antennas at 2m height
- WiFi meshing bandwidth: 4MBit/s for 800m distance between CCUBEs (see above)
- Mobile broadband (cellular network): 4G/LTE, 3G/UMTS and 2.5G/EDGE (securely tightened SIM card slot with screwed and sealed cap)
- Ethernet: 100MBit/s
- VSAT & BGAN: Supported via Ethernet interfaces
Remote operation
- VPN access: Yes (OpenVPN)
- Remote login: Yes (SSH)
- Monitoring: Yes (system voltage, temperature, communication status & performance)
Local operation
- RS-232 / USB: Terminal access
- LEDs: Indicating status of Ethernet connection, system load, 4G/LTE, WiFi and seismic data acquisition
Connectors
- Data out: MIL-C-2684 12-10P (Ethernet, USB, RS-232)
- WiFi antenna: RP-SMA (feale)
- Mobile broadband antenna: FME (female)
- DATA-CUBE³ input: MIL-C-2684 10-07S
- Power: MIL-C-2684 08-04P
Power supply
- Input voltage: 10.5-24V DC
- Battery: External (battery or power supply required)
- Power consumption:
- Idle: 360mW
- Streaming via Ethernet: 700mW
- Streaming via WLAN: 820mW
- Streaming via 4G/LTE (typical): <1W
- Power consumption rated for CCUBE only. DATA-CUBE³ must be added (~300mW running in continuous GPS acquisition mode).
Physical
- Size: 100 x 100 x 83mm (830ml)
- Weight: 730g
- Operating outdoor temperature: -10 – 60°C (other temperature versions on request)
- Housing: Reinforced plastic
- Waterproof: IP67
Equipment
- Transportation: Rugged aluminium box for up to 12 CCUBE for eady handling & deployment in the field
If you need Equipment like Cables, Connectors or Breakoutboxes (BOBs)
DATA-CUBE³ SEISMIC RECORDER
The DATA-CUBE³ is a state-of-the-art stand-alone 3-channel seismic data recorder. It was initially developed at GFZ in 2011 and later modified in close cooperation between company Omnirecs/DiGOS and GFZ to meet the requirements which have been identified during many years of seismic network operation in the field and various international measurement campaigns in harsh environments. Today, more than 1.100 DATA-CUBE³ recorders have been sold to over 20 countries.
The DATA-CUBE³ is ideally suited for field installations to reliably record seismic data for post-processing. The concept and design of the DATA-CUBE³ is the result of years of expertise by scientists and engineers from seismic installations and handling experience in the field.
A great flexibility allows satisfying specific customer requirements by offering the DATA-CUBE³ in different configurations and for sensors like geophones, broadband seismometers and also infrasonic sensors. A constantly high quality of the product is achieved by a well-proven production chain and controlled by regular comprehensive inspections.
DATA-CUBE³ SEISMIC RECORDER
The DATA-CUBE³ is a state-of-the-art stand-alone 3-channel seismic data recorder. It was initially developed at GFZ in 2011 and later modified in close cooperation between company Omnirecs/DiGOS and GFZ to meet the requirements which have been identified during many years of seismic network operation in the field and various international measurement campaigns in harsh environments. Today, more than 1.100 DATA-CUBE³ recorders have been sold to over 20 countries.
The DATA-CUBE³ is ideally suited for field installations to reliably record seismic data for post-processing. The concept and design of the DATA-CUBE³ is the result of years of expertise by scientists and engineers from seismic installations and handling experience in the field.
A great flexibility allows satisfying specific customer requirements by offering the DATA-CUBE³ in different configurations and for sensors like geophones, broadband seismometers and also infrasonic sensors. A constantly high quality of the product is achieved by a well-proven production chain and controlled by regular comprehensive inspections.
CCUBE IP Communication
Live streaming for geophysical instruments
The CCUBE (Communication Cube) is a modular communication device for real-time data transmission. It is an add-on to the DATA-CUBE³ and was developed in collaboration between the seismology group of University of Potsdam, Omnirecs, GFZ Potsdam and Gempa GmbH to extend the possible application range of the field-proven DATA-CUBE³. The CCUBE is designed for low power operation and to reliably transmit seismic data via 4G/LTE, WiFi or other IP-based communication methods.
DATA STREAMING EXTENSION
The CCUBE extends every DATA-CUBE³ by live streaming & IP communication via WIFI, 4G/LTE and Ethernet.
It streams measured data in miniSEED format in real-time directly into your acquisition system. CCUBE is an ideal solution for applications which require live and remote seismic data analysis.
The CCUBE is the optimal DATA-CUBE³ extension to meet today’s needs for real-time seismic data streaming. New applications like tsunami or hazard early warning as well as monitoring infrastructure or geothermal fields require continuous live sensor data for quick analysis, risk mitigation and fast reactions based on ultra-rapid assessments. The CCUBE provides a robust and reliable solution for transmitting seismic and other sensor data. Moreover, classical long-term seismological and geophysical installations benefit from live data streaming and state-of-health monitoring via CCUBE.
CCUBE IP Communication
Live streaming for geophysical instruments
The CCUBE (Communication Cube) is a modular communication device for real-time data transmission. It is an add-on to the DATA-CUBE³ and was developed in collaboration between the seismology group of University of Potsdam, Omnirecs, GFZ Potsdam and Gempa GmbH to extend the possible application range of the field-proven DATA-CUBE³. The CCUBE is designed for low power operation and to reliably transmit seismic data via 4G/LTE, WiFi or other IP-based communication methods.
DATA STREAMING EXTENSION
The CCUBE extends every DATA-CUBE³ by live streaming & IP communication via WIFI, 4G/LTE and Ethernet.
Monitoring of seismic events
earthquakes, vulcanos & tsunami early warning and land slides
Structural health monitoring for
bridges, buildings, geothermal fields and other critical infrastructure
Remote monitoring
of installations with difficult access
It streams measured data in miniSEED format in real-time directly into your acquisition system. CCUBE is an ideal solution for applications which require live and remote seismic data analysis.
The CCUBE is the optimal DATA-CUBE³ extension to meet today’s needs for real-time seismic data streaming. New applications like tsunami or hazard early warning as well as monitoring infrastructure or geothermal fields require continuous live sensor data for quick analysis, risk mitigation and fast reactions based on ultra-rapid assessments. The CCUBE provides a robust and reliable solution for transmitting seismic and other sensor data. Moreover, classical long-term seismological and geophysical installations benefit from live data streaming and state-of-health monitoring via CCUBE.
DATA-CUBE³ Type 1 in use
Location: North Namibia
Experiment time frame: 3 Months
Method: Refraction and white angle reflection
Equipment: 200 DATA-CUBE³ units
Under harsh environmental conditions, the DATA-CUBE³s successfully recorded seismic data during a 3 weeks campaign (GFZ). Since then the DATA-CUBE³s have been even improved and are now manufactured and distributed by DiGOS.
DATA-CUBE³ Type 1 in use
Location: North Namibia
Experiment time frame: 3 Months
Method: Refraction and white angle reflection
Under harsh environmental conditions, the DATA-CUBE³s successfully recorded seismic data during a 3 weeks campaign (GFZ) with a data loss of less than 5%. Since then the DATA-CUBE³ has been even improved and is now distributed by DiGOS.
DATA-CUBE³ AND CCUBE ACCESSORIES
Custom accessories for your sensor & deployment requirements
DATA-CUBE³ AND CCUBE ACCESSORIES
Custom accessories for your sensor & deployment requirements
Cables & Connectors
-
Power cables
-
Sensor cables
-
USB cables for configuration upload and data download
-
Monitor cables for noise checks in the field during installation
-
Combi cables for CCUBE (USB, serial & Ethernet)
-
PCD – Parallel CUBE Downloader (connect up to 5 CUBEs per PCD for parallel download and data conversion)
BOBs (Breakout Boxes)
Breakout Box (BOB) is necessary to connect actively powered sensors (e.g. seismometers) to the DATA-CUBE³ for adaptation of the correct signal voltage level. It is not necessary for most passive sensors like Geophones.
Please provide the following information with your request:
-
Which sensor you will use? (manufacturer & brand)
-
Do you want DiGOS to offer the sensor cable?
-
Do you require “deep discharge protection” by the BOB or do you have own battery protection in place?
Please don’t hesitate to ask us for additional information! We provide custom BOBs depending on your sensor and additional requirements.
Cables & Connectors
-
Power cables
-
Sensor cables
-
USB cables for configuration upload and data download
-
Monitor cables for noise checks in the field during installation
-
Combi cables for CCUBE (USB, serial & Ethernet)
BOBs (Breakout Boxes)
Breakout Box (BOB) is necessary to connect actively powered sensors (e.g. seismometers) to the DATA-CUBE³ for adaptation of the correct signal voltage level. It is not necessary for most passive sensors like Geophones.
Please provide the following information with your request:
-
Which sensor you will use? (manufacturer & brand)
-
Do you want DiGOS to offer the sensor cable?
-
Do you require “deep discharge protection” by the BOB or do you have own battery protection in place?
Please don’t hesitate to ask us for additional information! We provide custom BOBs depending on your sensor and additional requirements.
Active seismic applications
SEISMIC DROP DOWN
The Seismic Drop Down (SDD 6600) was developed by Omnirecs and has been successfully operated in a campaign together with GFZ. Today, DiGOS offers the SDD 6600 to interested customers!
Features of the Seismic Drop Down SDD 6600
Local mobility
Coupling device for cars and trucks
Quick start of operation
Foldaway tower
Shipping
Transportable in norm sea container
Depth of penetration
1500 m
Energy of single drop
6600 Nm
Excitations per working day
up to 600
Features of the Seismic Drop Down SDD 6600
Local mobility
Coupling device for cars and trucks
Quick start of operation
Foldaway tower
Shipping
Transportable in norm sea container
Depth of penetration
1500 m
Energy of single drop
6600 Nm
Excitations per working day
up to 600
Technical specifications
Total weight
2t to be braked
Dimensions
4,5 x 2,2 x 2,1m (LxWxH)
Mass of drop weight
340kg
Technical specifications
Drop height
2m
Base plate
40 x 40 x 3cm
Batteries capacity
Two blocks of 24V à 370Ah (switchable)
Technical specifications
Total weight
2t to be braked
Dimensions
4,5 x 2,2 x 2,1m (LxWxH)
Mass of drop weight
340kg
Drop height
2m
Base plate
40 x 40 x 3cm
Batteries capacity
Two blocks of 24V à 370Ah (switchable)