Product Descriptions
E70-DTU(433NW30) is a star network system, working in the 433MHz band, and has RS232/RS485 interface options, the module integrates coordinator and terminal, with two transmission modes: long distance and high speed. A coordinator supports
up to 200 nodes to communicate with it, bidding farewell to the polling protocol. All operations are configured using industry standard AT commands, which greatly simplifies user operations and is suitable for a variety of wireless communication
networking scenarios.
As a communication medium, wireless digital transmission radio, like fiber optic, microwave, open wire, has a certain scope of application: it provides real-time, reliable data transmission of monitoring signals in the special network under certain special
conditions, has the characteristics of low cost, easy installation and maintenance, strong bypass capability, flexible network structure, and far coverage, suitable for many scattered points, complex geographic environments, etc., and can be used in
conjunction with PLC, RTU, rain gauge, liquid level meter, etc., and can also be used as a communication medium. It can be connected with PLC, RTU, rain gauge, liquid level meter and other data terminals.
Product Features
★Multi-send and one-receive to achieve star self-organizing network (the technology was authorized by the National Invention Patent), the maximum support for 200 nodes concurrently concurrent data, without polling;
★Support AT command;
★Support RS232/RS485, one of the two can be used;
★In coordinator mode, support broadcast transmission, short address transmission, long address transmission;
★Firmware integration of long distance mode, high speed rate mode, to adapt to a variety of different applications;
★Communication is encrypted with AES128 data encryption to ensure packet security and reliability;
★Carrier sense multiple access with collision avoidance (CSMA-CA);
★Single packet support up to 128 bytes, adapted to Modbus;
★Simple and efficient power supply design, support power adapter or crimping method, support 10～28V power supply;
★Transmit power up to 1W, and multi-level adjustable, all technical indicators to meet European industry standards;
★Temperature compensation circuit, frequency stability better than ±1.5PPM;
★ Operating temperature range: -40 ℃ ~ +85 ℃ , to adapt to a variety of harsh working environment, the real industrial-grade products;
★ All-aluminum alloy shell, compact size, easy to install, good heat dissipation; perfect shielding design, good electromagnetic compatibility, anti-interference ability;
★ Power reverse connection protection, over-connection protection, antenna surge protection and other multiple protection functions, greatly increasing the reliability of the radio;
★Powerful software functions, all parameters can be set by programming: such as power, frequency, air rate, address ID, etc.;
★ Ultra-low power consumption, watchdog current is only 23mA (power saving mode and sleep mode power consumption is even lower), transmit current ≤ 0.3A;
★ Built-in watchdog, and precise time layout, once an exception occurs, the module will automatically restart, and can continue to continue to work in accordance with the previous parameter settings.
Specifications
| Attribute | Attribute value | Notes |
| ANSM-Part# | ANSM-E70-DTU(433NW30) | |
| Working frequency | 431~446.5 MHz | Default: 433MHz |
| Transmitting power | 17~30 dBm | Default: 30dBm（About 1W） |
| Receiving sensitivity | -110 dBm | Air data rate: 50kbps |
| Air data rate | 5k, 50kbps | Default: 5kbps |
| Test distance | 6500 meter | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m,air data rate: 5kbps |
| Size | 82 * 62 * 25 mm | Without SMA |
| Antenna type | SMA-K | |
| Communication interface | RS232/RS485 | |
| Package | DB-9/3.81 connecting terminal | |
| Buffer | 2048 bytes buffer | Defined by user |
| Power supply voltage (V) | 8-28V | Typical value |
| Emission current (mA) | 468 | Typical value |
Actual product photos
Product Data Manual：
For more product information, please download the PDF
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