Wireless Transmitter Receiver IOT Cellular Modem With 4G LTE
Antenna
- Introduction of 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.
Parameters of IOT Cellular Modem
| |
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 |
Working Mode of 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
- IOT Cellular Modem
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- ZHC4941 can be applied to the urban road water monitoring system,
which can monitor the water level of various low-lying road
sections in the urban area in real time and realize automatic
warning. With the help of this system, the municipal management
department can grasp the waterlogging situation of the whole city
as a whole and carry out drainage dispatch in time. The traffic
management department can obtain the real-time stagnant water level
of each road section through this system, and use radio, television
and other media to provide travel guides for the general public to
prevent people and vehicles from entering the deep water section
and causing serious losses.
| ZHC4941 |
RS485 Modbus | √ |
RS485 Automatic Acquisition | √ |
Virtual Serial Port | √ |
Connfiguration Software | √ |
Threshold Report | √ |
Configuration Software Docking | √ |
Modbus RTU/TCP | √ |