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Main ❯ Educational projects ❯ ACubes A3T: Device specification
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ACubes A3T Device specification |
KEY FEATURES
- Ideal solution for educational projects and learning
- Compatibility with A3R modules
- Low power consumption (Idle/Tx) 20 mA / 0.5 A
DESCRIPTION
ACubes A3T is a single-frequency underwater acoustic pulse transmitter module controlled by a digital line. The device can be combined with the A3R receiver module and share a single underwater acoustic transceiving transducer. The device can also be combined with a stack (up to 12 units) of A3R receiver modules. In this case, each receiver and transmitter uses a separate transducer.
The following transducers can be used:
- RT-1.332820-1 - affordable solution with minimal dimensions
- RT-2.332820-1 - dual-element transducer with enhanced sensitivity for operation from the surface
- RT-1.524525-1 - transducer with enhanced sensitivity
TECHNICAL SPECIFICATIONS
| PARAMETER | VALUE |
|---|---|
| DIMENSIONS | 100 x 50 x 10 mm |
| WEIGHT | 0.015 kg |
| MAXIMUM ACOUSTIC COMMUNICATION RANGE1 | 300 m |
| POWER CONSUMPTION Rx/Tx | 20 mA / 0.5 A |
| SUPPLY VOLTAGE2 | 5 .. 15 V |
| DATA LINE VOLTAGE | TTL/LVTTL (0 .. 3.3/0 .. 5) V |
| CARRIER FREQUENCY | 25000 Hz |
| PULSE DURATION | 4 ms |
| MINIMUM PAUSE BETWEEN PULSES | 40 ms |
| MAXIMUM ACOUSTIC SOURCE LEVEL3 (in band) | 160 dB re 1 μPa @ 1 m |
| MAXIMUM RELATIVE VELOCITY | +/- 2 m/s |
| OPERATING TEMPERATURE RANGE | -5 .. 50 °C |
1 A parameter that determines the maximum range at which signal reception is possible, based on the electro-acoustic parameters of the transmitter and receiver, the spatial decrease in the intensity of sound energy, attenuation in the medium and the level of underwater acoustic noise.
2 The maximum output power is achieved when the device is supplied with 12 V.
3 When using the RT-1.332820-1 transducer.
PINOUT AND CONNECTION
| A3T pad layout and functions |
CONNECTOR XS1
| PIN NUMBER | I/O | FUNCTION |
|---|---|---|
| 1 | O | Transducer output |
| 2 | - | GND |
| 3 | - | GND |
| 4 | O | Connected to pin No. 1 |
CONNECTOR XS2
| PIN NUMBER | I/O | ACTIVE STATE | FUNCTION |
|---|---|---|---|
| 1 | - | - | GND |
| 2 | O | 0 | Transmission start strobe |
| 3 | - | - | GND |
| 4 | I | 0 | Pulse transmission trigger |
| 5 | - | - | GND |
| 6 | O | 0 | Receiver No. 1 strobe |
| 7 | - | - | GND |
| 8 | O | 0 | Receiver No. 2 strobe |
| 9 | - | - | GND |
| 10 | O | 0 | Receiver No. 3 strobe |
| 11 | - | - | GND |
| 12 | O | 0 | Receiver No. 4 strobe |
| 13 | - | - | GND |
| 14 | O | 0 | Receiver No. 5 strobe |
| 15 | - | - | GND |
| 16 | O | 0 | Receiver No. 6 strobe |
| 17 | - | - | GND |
| 18 | - | - | NC |
| 19 | - | - | GND |
| 20 | - | - | +Usupply |
CONNECTOR XS3
| PIN NUMBER | I/O | ACTIVE STATE | FUNCTION |
|---|---|---|---|
| 1 | O | 0 | Common receiver strobe |
| 2 | - | - | GND |
| 3 | - | - | Reserved |
| 4 | - | - | GND |
| 5 | O | 0 | Receiver No. 7 strobe |
| 6 | - | - | GND |
| 7 | O | 0 | Receiver No. 8 strobe |
| 8 | - | - | GND |
| 9 | O | 0 | Receiver No. 9 strobe |
| 10 | - | - | GND |
| 11 | O | 0 | Receiver No. 10 strobe |
| 12 | - | - | GND |
| 13 | O | 0 | Receiver No. 11 strobe |
| 14 | - | - | GND |
| 15 | O | 0 | Receiver No. 12 strobe |
| 16 | - | - | GND |
| 17 | - | - | Reserved |
| 18 | - | - | GND |
| 19 | - | - | +Usupply |
| 20 | - | - | GND |
CONNECTOR XP2
| PIN NUMBER | I/O | FUNCTION |
|---|---|---|
| 1 | I | 5 .. 15 V |
| 2 | - | GND |