
[product introduction]
MT2001 NB IOT wireless transmission valve control module adopts ultra-low power chip as the main control MCU, supports pulse or photoelectric direct reading sampling access of third-party function module, reserves UART interface, supports DNS domain name resolution, supports registration packet and heartbeat packet mechanism, supports wake-up function, supports valve control, adopts advanced narrowband Internet of things cellular communication technology, wide coverage and large connection, Regularly report data to the cloud platform to realize low-power remote data transmission.
[functional features]
● NB IOT communication: embedded NB IOT module;
● serial port communication: it can communicate with other modules through UART interface;
● valve drive: the valve can be opened / closed remotely, supporting 2-wire or 5-wire valves;
● automatic valve maintenance;
● regular reporting: by default, the peak shifting reporting data will be automatically reported from 0:00 every day, and the reporting time can be set by yourself;
● wake up report: it can actively wake up the module to interact with the cloud platform;
● valve control wake-up report: in standby mode, the module can interact with the cloud platform after receiving the external valve control command through the serial port;
● module status indication: LED flashes when the module is powered on or awakened;
● the cloud platform can read the status of valves, signal strength, battery voltage, etc;
● data interaction of external equipment: the module can set parameters of external equipment and transparently transmit platform data through serial port.
[technical parameters]
| No. | Performance | Parameter |
| 1 | Working voltage | 3.0V~3.6V |
| 2 | Standby current | ≤15uA |
| 3 | RF emission current | ≤200mA |
| 4 | RF receiving current | ≤60mA |
| 5 | RF transmission power | ≤200mW |
| 6 | RF receiving sensitivity | ≤-100dBm |
| 7 | Frequency band | B5 850MHz |
| 8 | Battery type | Panasonic lithium manganese battery 3V |
| 9 | Bus operating voltage | Depending on the signal coverage of NB-IoT network, the communication distance is not limited |
| 10 | Electric current | Battery quiescent current ≤ 8ua; Bus static current ≤ 2mA, bus working current ≤ 20mA; |
| 11 | Protocol type | cjt-188 / Modbus / user defined protocol; Default cloud 376 protocol, device CJ / t188-2018 |
| 12 | Electromagnetic compatibility (EMC) | contact ≥ ± 6kV air ≥ ± 8Kv; |
| 13 | Operation temperature | -5℃~+55℃; |
| 14 | Storage environment | temperature:-25℃~+55℃;humidity:0~93%±3%RH; |
| 15 | Valve control | yes |
| 16 | Data acquisition interface | Photoelectric direct reading sampling / pulse sampling |