
ANet-2E4SM Modular Smart IoT Gateway
The modular Smart IoT gateway ANet-2E4SM is a universal smart communications management device developed by Acrel Electric Co., Ltd. It simplifies the interfaces of traditional management devices and offers modular, combinable components. The main module can operate independently as a standard smart communications management device. The entire device collects data from water, gas, and electricity meters via serial interfaces, Ethernet, and other interfaces. For data from end devices such as microprocessor-controlled protection devices, the standard passive 8-channel dry contact captures switching values in real time for access control, water leakage, and smoke detectors, and transmits alarm and real-time data over wired networks, 4G networks, and other interfaces. Main and auxiliary modules can be flexibly expanded to cover a wider range of application scenarios and meet edge computing requirements.
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Technical data
| Technical parameters | Indicators |
| Power supply | DC 12V (9-36V) |
| processor | ARM32-bit Cortex-A7 core, 528 MHz |
| memory | 256MB DDR3 |
| Electronic hard drive | 256MB NAND Flash |
| RS485 | 4-way coupling isolation |
| RS232 (Debugging Port) | One way, only for debugging |
| USB HOST | Single-way, high-speed USB 2.0, supports access to a USB flash drive or wireless WLAN network card |
| Ethernet | 2-way 10/100M adaptive |
| DI recording | 8-way passive dry contact switches volume absorption |
| Lora Wireless | 1-way, carrier frequency 410 MHz to 525 MHz, LoRa modulation |
| TF card interface | Support for TF memory cards under 16GB |
| RST key | Press briefly for 2-5 seconds to restart the device, press and hold for 5 seconds to restore factory settings. |
| ANet-M485 | 4-way optically isolated 485 series module with maximum access to 3 M485s in the main module |
| ANet-MCAN | CAN expansion module for extending a CAN bus |
| ANet-MIO | I/O expansion module with 8 DI, 4 DO and 4 AI expansions |
| ANet-MSE | Encryption extension module for extending hardware encryption |
| ANet-MBUS | MBUS expansion module with 1 MBUS bus |
| ANet-MALIBUS | ALIBUS expansion module with 1-way ALIBUS bus |
| ANet-M4G | 4G sub-module, supported after access International Version/7-module Full Network Version/4-Template 4G |
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