USB rs485 to MQTT M2M Gsm Module IOT Router DTU 4g ZHC4661 Serial Port Modem 206 RTU Relay Control Gps Tracker

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Product Overview


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USB rs485 to MQTT M2M Gsm Module IOT Router DTU 4g ZHC4661 Serial Port Modem 206 RTU Relay Control Gps Tracker

Self-built server 
If Customers have their own servers
ZHC4661 can communicate directly with the client server after simply configured. The ZHC4661 follows the Modbus RTU/TCP protocol and also supports 485-channel transparent transmission protocols.
If customer don‘’t have a cloud server
When some customers use the configuration software, they can't directly connect the PC and S485. The ZHC4661 supports the ZH-Cloud transmission. The customer only need to install the virtual serial port, the data of the ZHC4661 can be forwarded to the local serial port of the PC, which is more convenient and quick. (Also applicable to scenarios without a cloud server)
Configuration software docking
ZHC4661 has an RS485 interface, which supports the standard modbus RTU/TCP protocol. 
The configuration software can directly read and command the ZHC4661 through the RS485 interface.
USB rs485 to MQTT M2M Gsm Module IOT Router DTU 4g ZHC4661 Serial Port Modem 206 RTU Relay Control Gps Tracker

The ZHC4661 supports networking functions and supports one-to-one and multiple-to-one networks. This need is very practical for some specialization scenarios. 

Analog auto-calibration threshold reporting 
The ZHC4661 presets the analog linear calibration parameter value, the user only needs to modify the k/b value to achieve the linear calibration effect. In addition, the effect of analyzing the analog data can be realized by adjusting the k/b value, and the threshold will be reported. 
Support automatic identification of Modbus RTU/TCP protocol 
Adaptive Modbus RTU/TCP protocol, the data format replied by the ZHC4661 is consistent with the data format sent by the cloud. 

TCP CLient communication 
The serial server initiates a TCP connection to the server actively. If the connection fails, the connection is repeated repeatedly until it succeeds. If the connection is completed, the server and serial device can carry out two-way transparent data transmission.
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Product Applications
USB rs485 to MQTT M2M Gsm Module IOT Router DTU 4g ZHC4661 Serial Port Modem 206 RTU Relay Control Gps Tracker

4G DTU/RTU Modem is required in many places. Such as factory reservoirs, reservoirs for irrigation of farmland, water towers for water supply, water levels for rivers, etc. It is important to monitor the water level remotely.

Smart Agriculture 1. Monitoring the situation in the greenhouse,such as utilization rate about water resources, fertilizers and so on. 2. To obtain farmland information and monitor sudden natural disasters. 3. Fully automated operation without human intervention, achieving the precise control of agriculture. Industrial Detection 1. According to the site environment to choose WiFi or wired networking. 2. Real-time detection of air leakage products. 3. High sensitivity transmission monitoring data, the accurate data can ensure that monitoring without omission.
Product packaging
Company Profile
Chengdu Zongheng Intelligent Control Technology Co., Ltd.
We are a high-tech enterprise specializing in R&D, production and sales of IoT communication control terminal products and related overall solutions.The founders of the company are all masters of Electronic Science and Technology University and have working
experience in ZTE, Huawei, Siemens and other companies.They have rich practical experience in software and hardware R&D and
project management. Since the establishment of the company, the company has applied for nearly 20 patents and software copyrights.
Q1: Are you a manufacturer or a trading company?
A1: We are the Manufacturer with years of R&D experience.
Q2: What about the delivery time?
A2: For regular order it takes about 3-6 days for production, for mass order or customized order it may need 15-30 days.
Q3: What is your delivery terms and payment terms?
A3: We accept EXW, FOB, CFR, CIF, etc. You can choose the one which is the most convenient or cost effective for you.
Q4: After service and warranty?
A4: We provide 1 year warranty, if you have any problems in the use of products, please contact to your sales person.
Q5. How can we know the product quality?
A5: We have professional QA and QC teams, 100% quality inspection is performed before the goods out of the factory.
Q6:Can I have a small order? what's ur MOQ?
A6: Welcome to order sample to test and check quality. MOQ is 1 for normal item.
Q7: If I am not familiar with the operation, do you have a manual to help?
A7: Our Software, User Manual and Programme case can be downloaded freely on our official website, or you could consult the sales for those documents. Meantime, we have engineers team who could do help on your technician problem and give you useful solution.
Q8: Does your factory have the design and development capabilities, can you factory accept customized products?
A8: Our R&D department are well experienced in the IoT industry, We can make customized products especially for you.
Please kindly contact us for more.

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