Cellular Gateway IOT Router Industrial RS485 MODBUS IO Controller
With GPS
Product Introduction of IOT Router ZHL4921G
ZHL4921 is a multi-interface wireless gateway developed by Chengdu
Zongheng Intelligent Control Technology Co., Ltd. based on
QuecOpen, and it also has powerful RTU functions. Using embedded
Linux system development, embedded 256MB RAM and 256MB Flash,
support 4G wireless network high-speed transmission. Cover most
common application scenarios.
GPS Positioning Function
Function description: ZHL4921-G version supports GPS positioning.
Please choose whether to enable this function according to the
device model.
Note: After the GPS positioning is turned on, the GPS antenna is
required in the open air to obtain the GPS positioning information.
The GPS information is the WSG84 coordinate system. Please convert
it according to your needs.
- Parameter of IOT Router ZHL4921G
| Datasheet |
| Serial Port | RS485*1/RS232*1(choose one) |
| Standard | 3.81 Connection port |
| Baud Rate | 2400~115200 bps |
| Data Bit | 8, 9 |
| Stop Bit | 0, 1.5, 2 |
| Parity Bit | NONE EVEN ODD |
| Network Port | LAN*1 |
| Network Port Standard | RJ45 |
| Rate | 0/100Mbps |
| Protection | 2KV(Electromagnetic Isolation) |
| GNSS (Optional) |
| Coordinate System | WSG84 |
| PositionaI Accuracy | 10 Meters |
Features of IOT Router ZHL4921G
Support NTP function, realize automatic network time calibration
1 channel 100M industrial Ethernet interface
1 RS485/RS232 serial interface
Interface: AI*1/ DI*2/ DO*1
Support MODBUS RTU and MODBUS TCP protocol adaptation
Support setting the direction of active data reporting
Support TCP_Client, MQTT, HTTP_Client
Interface: AI*1/ DI*2/ DO*1
Support two working modes: master mode, slave mode, master mode
supports cascading multiple Modbus devices
Internal self-inspection mechanism to ensure stable operation of
equipment
Support cloud forwarding, cloud networking
Support network port, WIFI, remote, serial port configuration
Support domain name address resolution
Support setting APN
Support SIM card number query
Support custom heartbeat package
Support multiple registration packages (ID, CCID, custom) to ensure
the legality and uniqueness of the device identity
Support WIFI hotspot/GPS positioning
Support 10*10KB network/serial data buffer
Support timing flip relay status
| Name | Function | Status | Description |
| WORK | System working status indicator light | KEEP OFF | Device not in operation |
| KEEP ON | abnormal operation |
| Slow flashing | Reading Card |
| Fast flashing | Connection Network |
| Stroboscopic | Normal working |
| NET | Network connection indicator light
Network data receiving and receiving indicator light | KEEP ON | Network data link established |
| KEEP OFF | Network data link not established |
| Flashing | There is network data send and receive |
| M | Device monitoring status indicator light | KEEP ON | Device port listening successfully |
| KEEP OFF | Device port initialization |
| Flashing | Trying to listen |
| Wifi/ Gps | WiFi/GPS status indicator with different contents according to
different versions | KEEP OFF | W: WIFI is not enabled |
| ON | G: GPS is not enabled |
| W: WIFI enabled successfully |
| G: GPS enabled successfully |
| Flashing | W: Activating |
