Product Details
LTE Gateway Serial to 4G IOT Cellular Modem Modbus Relay 24 Channel
IO Ports RTU
Parameters of ZHC4941
| |
Number of ports | RS485*1 | Number of interfaces | 8 Relay output |
Standard | RS485: A, B | Standard | DO*8, COM*2 |
Baud rate | 600~921600bps | Mechanical durability | 10^7 |
Data bit | 8, 9 | Electrical durability | 10^5 |
Stop bit | 0.5, 1, 1.5, 2 | Capacity | 5A 250VAC 30VDC |
Check Bit | NONE EVEN ODD | |
| Number of interfaces | 8 Relay input |
Voltage | 9~36V | Standard | DI*8, COM*2 |
Current | 60mA(aver) @9V 30mA(aver) @36V | Detection range (wet node) | 5~50V->High0~2V->Low |
| |
ESD | IEC61000-4-2, Level 4 | Number of Interfaces | 8 Analog input |
Surge | IEC61000-4-2, Level 3 | Standard | AI*8, COM*2 |
Group pulse | IEC61000-4-2, Level 3 | Scope of test | 4~20mA |
- Introduction of 4G IOT Cellular Modem
- 4G IOT Cellular Modem ZHC4941 is an industrial-grade 4G RTU that provides 8 DI, 8 DO, 8
AI and 1 RS485/232 interface, supports local logic processing
operations, automatic acquisition and active reporting, Modbus
RTU/TCP adaptation, and automatic threshold calibration Special
functions such as reporting, configuration software docking, dry
and wet node IO detection, support one-to-one, many-to-one network.
Working Mode of 4G IOT Cellular Modem
1.HTTP Client
Support serial data transmission to designated server via HTTP.
2. TCP Client
The serial server actively initiates a TCP connection to the
server. If it fails, it will continue to reconnect until it
succeeds. If the connection is successful, the server and the
serial device can perform two-way transparent data transmission.
- Application of
- 4G IOT Cellular Modem
After the device is powered on, remote control can be achieved
through the transparent cloud, the light control state can be
adjusted through the PC or APP, and the light can be directly
turned on and off through the local switch.
It can realize all-weather, multi-directional monitoring of the
scene, saving manpower and material resources.
| ZHC4941 |
RS485 Modbus | √ |
RS485 Automatic Acquisition | √ |
Virtual Serial Port | √ |
Connfiguration Software | √ |
Threshold Report | √ |
Configuration Software Docking | √ |
Modbus RTU/TCP | √ |
Company Profile
Founded in 2015, Chengdu Zongheng Intelligence Control Technology
Co., Ltd. is a high-tech enterprise focusing on the research,
development, production and sales of Internet of Things
communication control terminal products and related overall
solutions. Takes the IOT intelligent communication terminal as the
entry point, combines edge computing and big data cloud platform,
and realizes data collection, transmission and intelligent control
and other functions in the application of the Internet of Things.
At present, the company's products have been widely used in
intelligent water conservancy, intelligent agriculture, intelligent
audio-visual and other scenes.