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Help CenterWMB13-868 UART Interface Wireless M-bus Module for AMR Meter Reading Application
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WMB13-868 wireless M-Bus module follows the wireless M-BUS protocol. It has a UART interface for serial communication and configuration. The dimension is 13.7*25.4*3.4mm. WMB13-868 can work in S, T, R2 and C mode. It works in sleeping mode with super-low consumption power and be wakened up via serial port. By mounting the module onto the user board, it is easy to use through serial port communication protocol.UART interface Wireless M-bus Module WMB13-868 with meter reading application is a good choice for smart metering.
Technical Specification
Pin Assignment and Description
| Pin | Name | Describe |
| 1 | GND | Ground |
| 2,3,4,5,6,7 | RESERVED | For test and future extension, not connected |
| 8 | RTS | Receive flow control I, output, high : idle, low: busy. |
| 9 | CTS | Send flow control O, input high: idle , low: busy |
| 10 | RESERVED | For test and future extension, not connected |
| 11 | CONFIG | Reserved |
| 12 | GND | Ground |
| 13 | GND | Ground |
| 14 | VCC | POWER SUPPLY |
| 15 | GND | Ground |
| 16 | GND | Ground |
| 17 | RF | RF pin, connect with antenna |
| 18 | GND | Ground |
| 19 | GND | Ground |
| 20,21,22,23 | RESERVED | For test and future extension, not connected |
| 25 | LED1 | LED1 output. If not needed, not connected. Active high. |
| 26 | LED2 | LED2 output. If not needed, not connected. Active high. |
| 27 | RXD | SerialRX |
| 28 | TXD | SerialTX |
| 29 | RESET | Reset Pin (active in low) |
| 30 | GND | Ground |
Friendcom, a provider of wireless M2M solutions, who dedicated to wireless communications research for more than 10 years.
As an owner of independent intellectual property of CellMesh wireless fixed network, we provide comprehensive solutions for smart grid, utility metering, wireless connectivity and test equipment. We also serve in the area of smart home,intelligent security, intelligent transportation, precision agriculture, utilities meter data collection, etc.
We persist to create value for clients by continuous technology innovation and invest 10% of revenue for R&D. Hundreds of our engineers focus on technology innovation, establish joint laboratories with several world's first-class customers and industry-chain partners for collaborative innovation. We have nearly a hundred patents and software copyrights. We also play an important role in the establishment of Chinese wireless communication standard.
We cooperate closely with several domestic and overseas first-class universities, research institutions and laboratories, to consolidate and enhance our core competencies, to strive to be the leading supplier of wireless M2M solutions.
We’re ready to contribute our effort to promote wireless M2M development and application.
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