Ultra-Fast USB Hub for Seamless Data Transfer and Connectivity

Product Description

Product Description

 

The Model M20C-V21 Beidou Data Transmission Terminal is an integrated device launched by Xiamen Chenmai Smart Technology Co., Ltd., specifically developed for Beidou and 4G communication applications. It supports both Beidou RDSS/RNSS and 4G communication functions.
Internally, the Model M20C-V21 Beidou Data Transmission Terminal integrates functional units including a multi-frequency Beidou antenna, radio frequency (RF) module, baseband module, and main control unit. It is capable of implementing functions such as RDSS positioning, short-message communication, and RNSS navigation and positioning. Meanwhile, the terminal comes with a built-in 4G module that supports data transmission via 4G networks.

 

In addition, this product has a built-in RTU chip and thus features RTU functions, such as supporting scheduled data collection and reporting; it also supports program version upgrade without losing existing configurations, achieving full compatibility with settings from previous versions.

Product Features:

• Supports hydrology, water resources management, and Beidou transparent transmission
• Supports Beidou-2 short-message data transmission
• Supports flexible switching between standby mode and real-time online mode
• Supports rainfall-triggered data collection function
• Equipped with threshold-triggered function and cloud service function
• Supports real-time clock and automatic clock synchronization
• Supports functions such as real-time data query
• Supports multiple working modes including self-reporting, polling, and compatibility modes
• System standby power consumption ≤ 1.2W
• Operating temperature: -25ºC~+70ºC
• Supports remote configuration, upgrade and maintenance via IoT cloud platform

• Beidou Module Parameters

  Item	Performance Indicator	Remarks
  RDSS Parameters	Receive Signal Sensitivity: -127.6dBm	-
  	Transmit Power: ≥37dBm	-
  	Carrier Suppression: ≥30dBc	-
  	Modulation Phase Error: ≤3°	-
  	Positioning/Communication Success Rate: ≥95%   Positioning Accuracy (continuous 24h): ≤100m	Under no significant interference
  	Acquisition Time (Cold Start): ≤2 s   Reacquisition Time (Signal Loss): ≤1 s	-
  Other Parameters	Operating Voltage: 3.5V~5.2V	-
  	Standby Power Consumption: ≤150mA@(+3.7V)	-
  	Transmit Power Amplifier Consumption: ≤3.5A@(+5V)	Transient power consumption
  	Temperature Range   • Operating   • Storage	-20~+60ºC   -45~+70ºC

  Wireless Parameters (Optional)

  Item	Performance Indicator	Remarks
  Wireless Module	Industrial-grade wireless module	-
  Standards & Bands	Supports: FDD-LTE, TD-LTE, CDMA2000 1xEV-DO, WCDMA, TD-SCDMA, CDMA1X, GPRS/EDGE	Single-mode, multi-mode or full-network communication optional
  Theoretical Bandwidth	FDD-LTE: Downlink 100Mbps, Uplink 50Mbps   TD-LTE: Downlink 61Mbps, Uplink 18Mbps   WCDMA: Downlink 42Mbps, Uplink 5.76Mbps   TD-SCDMA: Downlink 4.2Mbps, Uplink 2.2Mbps   CDMA2000 1xEV-DO Rev. A: Downlink 3.1Mbps, Uplink 1.8Mbps   GPRS/EDGE: 171.2kbps/384kbps	-
  Transmit Power	<24dBm	-
  Receive Sensitivity	<-109dBm	-

  Supplementary Notes

• Term Precision & Industry Compliance

  Chinese Term	English Translation	Adaptation Notes
  	Beidou Module	Official international name for China's satellite navigation system module
  	Carrier Suppression	Core technical indicator for satellite communication signal quality
  	Modulation Phase Error	Key parameter reflecting signal modulation accuracy
  	Acquisition Time (Cold Start)	Standard expression for satellite receiver cold-start signal capture latency
  	Reacquisition Time (Signal Loss)	Professional phrase for receiver reconnection speed after signal loss
  	Transmit Power Amplifier Consumption	Accurately describes power consumption of the module's transmit amplifier unit
  	Transient Power Consumption	Specifies the short-duration high-power state of the module during transmission
  	Full-network Communication	Industry term for modules compatible with all mainstream cellular network standards

Profile of Xiamen Chenmai Smart Technology Co., Ltd.

Our Vision: Co-create a Smart Earth and march towards the sea of stars!Our Positioning: Chenmai - A Provider of Smart IoT Terminal Products and Solution Services

Rooted in Xiamen, a beautiful coastal city, Chenmai Smart is a technology-driven enterprise integrating the R&D, production and manufacturing of smart IoT terminal products. We are committed to providing cloud-to-end smart IoT terminal products and solutions for government departments, industry clients and the general public, covering smart cities, beautiful countryside, environmental monitoring, emergency disaster prevention and mitigation early warning informatization, etc.

Front-end: Smart IoT Terminal Products

Our smart IoT terminal products, based on edge computing, integrate multiple communication technologies including 5G/4G, Beidou/GPS, NB-LoRa narrowband IoT and optical fiber broadband. They build a space-air-ground integrated basic data collection and monitoring system for the smart IoT.

Cloud-end: IoT Video Monitoring and Early Warning Cloud Platform "One Map"

Leveraging new-generation information technologies such as cloud computing and big data, we have built a SaaS cloud platform featuring real-time large-screen visualization of GIS electronic maps, videos and data. The platform supports functions including front-end device operation status monitoring, remote management, threshold-crossing alarm, and real-time cloud-to-end linkage early warning. Coupled with inspection WeChat mini-programs and APP client applications for handheld terminals, it provides a scientific basis for decision-making by government regulatory authorities, industry clients and the public.

With the vigorous development of the IoT industry, we will provide more high-quality smart IoT terminal products and solutions to create greater value for customers and realize the beautiful vision of a human Smart Earth!