Final configuration is confirmed in the quotation.
4G/LTE Industrial RTU Gateway
Cellular RTU gateway for pump stations, water telemetry and remote industrial monitoring — collects RS485, analog and digital signals and uploads data over 4G LTE.
Start with the information you have. Exact model, interface and certificates are confirmed in writing before order.
Image details
Representative 4G RTU family visual based on an internally reviewed hardware reference. It is not the final ordered model; modem bands, I/O channel count, connector layout, enclosure and certifications are confirmed in the quotation.
Related application hardware: Equipment Monitoring
Typical Hardware Architecture
Final system design, software integration, PLC/SCADA programming and site installation are handled by the customer or their system integrator.
Customer system
Customer's SCADA / Cloud / PLC System
Start from the site condition
Models and quotation stay on sungeneiot.com. Use the matching field condition first.
Typical Reviewed Options
- Cellular uplink
- 4G / 3G / 2G; modem and LTE bands selected for the target country
- Serial interfaces
- 1 × RS485 field port plus 1 × RS232 configuration port
- Field inputs
- 4-20mA / 0-5V analog and dry-contact digital input; channel count confirmed by hardware revision
- Protocols
- Modbus RTU collection, transparent TCP / UDP and MQTT 3.1 / 3.1.1
- MQTT options
- QoS 0 / 1 / 2, retained message, custom payload template and TLS option
- Power / environment
- 7.5–32 VDC; -30 to +75 °C; wall-mounted enclosure
How the model is selected
The written quotation ties the site requirement to one reviewed hardware configuration.
Site requirement
Application, medium, mounting and environment
Hardware configuration
Signal, protocol, power and enclosure
Quote confirmation
Model, quantity, certificates and delivery
Machine monitoring context
Representative site context. Sensors, interfaces, enclosure, power and mounting are confirmed against the actual project before quotation.
Model-selection reference
Agriculture & Weather Hardware Catalog
Compare SG-coded hardware options reviewed from available source documents. Ordered configuration is confirmed in the quotation.
- Catalog section
- LoRaWAN and 4G backhaul for field sites
- SG-coded options
- 18
- PDF pages
- 26–28
Continue product selection
Compare adjacent hardware families for the same monitoring path. The final combination is checked against the project I/O, protocol, power and enclosure requirements.
How to choose
- Confirm the LTE bands for your target country first so a compatible cellular module can be selected and documented.
- List the field signals you need to collect (RS485 / Modbus registers, dry contacts and 4-20mA or 0-5V analog signals). The exact channel count must be checked against the selected hardware revision.
- For this reviewed RTU family, define an MQTT broker or transparent TCP / UDP endpoint, payload fields, authentication and TLS requirements before quotation. Modbus TCP or a custom API requires a separately verified gateway or firmware scope.
- For an outdoor or off-grid pump or tank site, size the DC supply, solar package, antenna and weather-rated enclosure as a separate site package.
Compatible with
- RS485 / Modbus sensors and meters
- 4-20mA or 0-5V transmitters
- Dry-contact alarms and status switches
- MQTT broker or transparent TCP / UDP endpoint
Typical package
- Cellular RTU with a country-matched modem
- SIM and antenna accessories
- RS485 and/or analog / dry-contact field devices
- DC supply and a weather-rated enclosure for outdoor sites
Applications
Use this cellular RTU when a remote pump station, water site or industrial asset has mixed RS485, analog and dry-contact signals but no practical wired backhaul. The reviewed family collects the field data and uploads it over a country-matched cellular module using MQTT or transparent TCP / UDP.
- Pump run, fault, pressure and level telemetry from remote stations
- Tank, well and reservoir monitoring over 4G LTE
- RS485 Modbus meter and sensor collection
- Dry-contact and analog alarm reporting to an MQTT broker or TCP / UDP endpoint
What to include in your quote request
- Target country, mobile operator and known LTE bands
- RS485 register list plus dry-contact and 4-20mA / 0-5V point counts
- MQTT broker or TCP / UDP endpoint, payload, authentication and TLS requirements
- Available DC power, outdoor enclosure and antenna conditions
- Quantity and project stage (sample / pilot / production)
Related selection guides
Related resources
Frequently asked questions
Which field signals can this 4G RTU collect?
The reviewed family has one RS485 field port, one RS232 configuration port, 4-20mA or 0-5V analog-input capability, and dry-contact digital-input capability. The exact analog and digital channel count is confirmed against the selected hardware revision before quotation.
How can the RTU upload data?
The reviewed functions include Modbus RTU collection, MQTT 3.1 / 3.1.1 with QoS 0 / 1 / 2, retained messages, a custom payload template and a TLS option, plus transparent TCP / UDP. Other protocol-conversion or custom API behavior requires a separately verified scope.
What must be checked for the target country?
The cellular modem and LTE bands are selected for the destination country and operator. The SIM, antenna, field power, outdoor enclosure and destination-market documentation are also confirmed for the ordered configuration.
When should a remote pump station use a 4G LTE industrial RTU instead of LoRaWAN?
Use a cellular RTU when one cabinet already has several analog, digital or RS485 points and no local LoRaWAN gateway is planned. LoRaWAN fits a cluster of low-data points around one gateway. Country bands, SIM or APN rules and the destination SCADA or MQTT endpoint are confirmed before the path is frozen.
Can the RTU keep Modbus meter data if the cellular link drops?
Buffering depends on the selected configuration. State the required retention, timestamps and whether data may be lost on power loss. Those recovery rules belong in the quotation, not as an assumed store-and-forward guarantee.
What should I provide when requesting a quote for the 4G/LTE Industrial RTU Gateway?
Target country, mobile operator and known LTE bands; RS485 register list plus dry-contact and 4-20mA / 0-5V point counts; MQTT broker or TCP / UDP endpoint, payload, authentication and TLS requirements; Available DC power, outdoor enclosure and antenna conditions
Where can I compare available model options?
Open the Agriculture & Weather Hardware Catalog linked on this page. It lists SG-coded selections reviewed from available source documents; the ordered configuration is confirmed in the quotation.
Will it work with my existing system?
Compatibility is reviewed against your field signals, protocols and upstream platform. Typical pairings include RS485 / Modbus sensors and meters, 4-20mA or 0-5V transmitters, Dry-contact alarms and status switches.