ComIn I3000 4G Ind. Router

ComIn I3000 is an industrial 4G wireless router that integrates multiple functions such as WiFi transmission, local resource sharing, cellular mobile Internet access, precise GPS positioning, serial port pass-thru transmission, and backend remote management. It provides more processing performance, richer interfaces and higher network connection speed than ordinary industrial routers. This product is suitable for different application types and scenarios, such as car WIFI, video transmission, PLC remote control, smart express cabinet, video surveillance, etc

Eight characteristics

1. 4G LTE: Ubiquitous industrial-grade Connectivity
As a 4G industrial card router, its core value lies in providing a stable and reliable cellular network connection. ComIn I3000 supports 4G LTE high-speed networks, which means it can utilize the extensive 4G base stations covered by operators to provide high-speed Internet access capabilities for devices deployed at any location. Whether in remote oil fields, on mobile vehicles, or in factory basements with poor signal coverage, as long as there is a 4G signal, ComIn I3000 4G industrial card router can ensure the smoothness of the data link. This “plug-and-play” wide area network connection capability has completely broken free from the constraints of complex cabling, high cost and poor flexibility of traditional wired networks, providing the possibility for the rapid deployment and flexible networking of industrial equipment. For the 4G industrial card router, a stable and reliable 4G LTE connection is the basis for all its functions to be realized and also the cornerstone of its “industrial grade” title.
Ii. Gigabit Ethernet: High-speed Wired and Elastic Networking
Although wireless connection is the main advantage of 4G industrial card routers, in many industrial scenarios, wired connection is still indispensable. The ComIn I3000 4G industrial card router is equipped with a Gigabit Ethernet port, a feature that greatly expands its application scenarios and networking flexibility. On the one hand, it can serve as the main link. In situations where 4G signals are poor or higher bandwidth and lower latency are required, it can access the network via wired means. On the other hand, it can also serve as a backup link, automatically switching when the 4G network is interrupted to achieve dual-link redundancy backup and ensure the uninterrupted operation of critical services. In addition, the Gigabit Ethernet port can also connect local industrial devices, such as PLCS, industrial control computers, cameras, etc. These devices can be connected to the cloud or the enterprise Intranet through 4G industrial card routers, forming an elastic network architecture that combines wired and wireless. This design makes the ComIn I3000 not only a data outlet, but also a small industrial network hub.
Iii. Industrial Temperature: The tenacious quality that is unafraid of harsh environments
“Industrial grade” is by no means an empty slogan; rather, it is a rigorous test of the equipment’s ability to operate stably in extreme environments. The ComIn I3000 4G industrial card router has a wide operating temperature range and can adapt to various industrial environments from extremely cold to extremely hot. Whether in the cold winter outdoors in the north, in the sweltering factory workshop in the south, or in the poorly ventilated control cabinet, this 4G industrial card router can maintain its stable performance and will not crash or be damaged due to temperature changes. This feature is crucial for ensuring the long-term stable operation of industrial systems. It means that users can deploy the ComIn I3000 wherever needed with confidence, without having to worry too much about its working environment, which greatly reduces maintenance costs and system risks. It is precisely this extreme pursuit of environmental adaptability that truly defines a qualified 4G industrial card router.
Four. Serial Pass Through: The Bridge to Break Down Industrial Data Silos
In the industrial field, a large number of devices (such as PLCS, electricity meters, sensors, etc.) still use traditional serial ports (RS232/RS485) for communication. How to connect these “dumb” devices to modern networks to achieve remote monitoring and management has always been a major challenge for the industrial Internet of Things. The built-in serial port transparent transmission function of ComIn I3000 4G industrial card router perfectly solves this problem. It can seamlessly encapsulate serial port data into network data packets and send them to the remote server through the wireless link of its 4G industrial card router. At the same time, it can also reverse and transmit the instructions of the server to the serial port device. This function is like a bridge, bridging the data gap between traditional industrial equipment and modern Internet of Things cloud platforms, rejuvenating old equipment and enabling remote data collection and remote control of devices. For system integrators and end users, this feature greatly simplifies the difficulty and cost of system transformation and is an indispensable core function of 4G industrial card routers in industrial applications.
V. Dual Band WiFi: Flexible local wireless coverage
In addition to providing wide area network connections, the ComIn I3000 4G industrial card router also features dual-band WiFi functionality, allowing it to be used as a local wireless access point. It supports both 2.4GHz and 5GHz frequency bands. The 2.4GHz band has strong wall-penetrating capability and a wide coverage area, making it suitable for connecting IoT terminals with low bandwidth requirements. The 5GHz frequency band has less interference and high speed, making it suitable for providing network services for mobile terminals, tablet computers or devices that require high-speed transmission. This feature enables the ComIn I3000 to function as a 4G industrial card router while also providing on-site staff with convenient WiFi access for equipment debugging, data query or mobile office work. For instance, on smart buses, it can simultaneously provide 4G backhaul for on-board devices and offer WiFi hotspots for passengers. Beside the smart express lockers, maintenance personnel can maintain the lockers through the WiFi connected to them. This “multi-functional in one machine” capability has greatly enhanced the added value of the equipment and the flexibility of its deployment.
Vi. GPS Positioning: Precise Positioning, Visual Asset Management
For mobile or distributed industrial assets, it is crucial to have real-time access to their location information. The ComIn I3000 4G industrial card router integrates a high-precision GPS positioning module, making it not only a 4G industrial card router but also a mobile positioning terminal. The device can obtain its own longitude and latitude information in real time and report it to the background management platform via 4G network. This function has extremely high application value in scenarios such as fleet management, intelligent public transportation, tracking of rental equipment, and personnel monitoring. Managers can visually view the real-time locations and historical trajectories of all connected devices on the map, achieving refined and visual management of assets. This not only enhances operational efficiency but also provides a strong guarantee for asset security. Integrating the positioning function with the 4G industrial card router is a major innovation of the ComIn I3000 in response to mobility application scenarios.
Vii. Watchdog Design: Persistent Self-Protection
In unmanned industrial sites, the long-term stable operation of equipment is a basic requirement. Any unexpected system crash or program flight may lead to production interruption or even safety accidents. The ComIn I3000 4G industrial card router is equipped with a built-in hardware Watchdog design, which is a crucial reliability guarantee mechanism. It will act like a loyal guard, continuously monitoring the operational status of the system. Once the main program or system is detected to have fallen into an anomaly due to an accident, the watchdog circuit will be immediately triggered to force the device to automatically restart, enabling it to resume normal operation in the shortest possible time. This “self-healing” capability greatly enhances the unattended operation capacity of the equipment, minimizes the need for on-site maintenance to the greatest extent, and ensures the continuous availability of the entire system. For a professional 4G industrial card router, the Watchdog design is an important yardstick for measuring its reliability.
Viii. Multiple User Connection: Powerful concurrent processing capability
A 4G industrial card router often needs to provide services for multiple terminal devices or data channels simultaneously. ComIn I3000 4G industrial card router supports multi-user concurrent connections and can stably handle data requests from different devices. Whether it is multiple serial port devices uploading data simultaneously, multiple WiFi clients accessing the Internet at the same time, or the background platform conducting remote management and data polling, ComIn I3000 can handle all these with its powerful processing capabilities, ensuring the stability of each connection and the efficiency of data transmission. This feature enables it to handle complex application scenarios. For instance, in a small industrial site, it can simultaneously connect PLCS, cameras, and environmental sensors, and provide WiFi access for operation and maintenance personnel, with all tasks proceeding in parallel without contradiction. The powerful multi-user concurrent capability is a direct manifestation of ComIn I3000 as a high-performance 4G industrial card router.

Dual SlM Card Backup is More Stable

Technical Principles and Implementation
The ComIn I3000 4G industrial card router is equipped with two independent SIM card slots, allowing users to insert two SIM cards from different telecommunications operators simultaneously. Its core working mode is intelligent backup and switching. Under normal working conditions, the router will default to using the primary SIM card (such as Operator A) for network connection. The built-in intelligent monitoring system will assess the network quality of the main link in real time, including multiple key indicators such as signal strength (RSRP), signal quality (SINR), network latency, and packet loss rate. Once the network quality of the main link drops below the preset threshold or is completely interrupted, the system will immediately activate the switching logic and seamlessly switch the network connection to the standby SIM card (such as Operator B). This process is usually completed within a few seconds and is almost imperceptible to upper-layer applications, thus ensuring the continuity of data transmission. This design fundamentally eliminates the risks of signal blind spots and connection disruptions caused by network issues of a single operator, providing double insurance for critical services.
Anti-loss and anti-theft lock card function
In addition to network backup, the Dual SIM design of ComIn I3000 4G industrial card router also incorporates a humanized security consideration – the card locking function. In some public deployment or unattended scenarios, such as smart lockers, shared massage chairs, and in-vehicle devices, the risk of SIM cards being stolen or removed is real. Once the SIM card is lost, it will not only cause a loss of charges, but also lead to the device going offline and business interruption. The SIM card locking function of ComIn I3000 enables administrators to software-lock the SIM card slot through the device interface or cloud platform. After locking, any unauthorized physical insertion or removal of the SIM card will be recorded by the system and may even trigger an alarm. Meanwhile, when the device detects that the SIM card has been illegally removed, it can execute preset strategies, such as restarting the device to attempt recovery or entering safe mode to wait for the administrator to handle it. This “anti-theft and loss prevention” design adds multiple protections for the asset security and business continuity of the equipment, fully demonstrating the careful consideration in details of this 4G industrial card router.

Dual Frequency Concurrency

The Wi-Fi module of ComIn I3000 4G industrial card router follows the IEEE 802.11b/g/n/ac technical standards, which means it supports both 2.4GHz and 5GHz frequency bands simultaneously and can achieve dual-band concurrency. The 2.4GHz frequency band has a long history. Its advantages lie in strong penetration, wide coverage and good compatibility. However, the drawbacks are also extremely obvious: the frequency band resources are crowded, the channels are few (only three non-overlapping channels), and it is easily interfered with by devices such as Bluetooth and microwave ovens, resulting in a decrease in network speed and an increase in latency. The 5GHz band, on the other hand, is relatively “clean”, featuring more channels (up to 25 non-overlapping channels) and fewer interference sources, thus offering higher transmission rates and lower latency. Its drawback is that its penetration ability is relatively weak and the coverage area is relatively small.
The “Dual Frequency Concurrency” technology of ComIn I3000 4G industrial card router is not simply dual-frequency support. Instead, it allows the router to simultaneously activate both 2.4GHz and 5GHz Wi-Fi networks, and the two can work independently without interfering with each other. Users can flexibly choose which network to connect to based on the characteristics and requirements of their own devices. For instance, devices with high coverage requirements and low rate sensitivity (such as some outdated IoT sensors) can be connected to the 2.4GHz network. Devices with high requirements for speed and latency (such as high-definition video surveillance and data acquisition terminals) can be connected to the 5GHz network. This “dual WiFi without interference” design is like building two parallel highways, one for slow and heavy vehicles and the other for sports cars and fast vehicles, greatly enhancing the efficiency and capacity of the entire wireless network. It provides users with a truly “smooth Wi-Fi experience”.

Full Gigabit Wired Port

Detailed configuration description
The ComIn I3000 4G industrial card router offers 4 Gigabit LAN ports and 1 Gigabit WAN port. Here, “Gigabit” refers to the port rate supporting 10/100/1000Mbps adaptive, that is, the Gigabit Ethernet standard. Compared with the traditional 100-megabit (100Mbps) port, the bandwidth of the gigabit port has increased tenfold. This means that devices connected through these ports can theoretically achieve a local data exchange rate of up to 1000Mbps. The design of one WAN port endows ComIn I3000 with greater flexibility. In some scenarios, users may already have existing wired broadband access (such as fiber optic). At this point, they can insert the wired broadband into the WAN port. The ComIn I3000 can automatically recognize it and use the wired network as the main connection, while the 4G network serves as the backup connection, achieving dual-link redundancy of “wired +4G” and further enhancing the reliability of the network. Of course, in pure 4G application scenarios, this WAN port can also be used as an additional LAN port, providing a total of 5 gigabit wired access points.
Performance release and compatibility
The description “10 times faster” is not an exaggeration. When users are using broadband with a bandwidth ranging from 100M to 1200M, the 100-megabit port undoubtedly becomes a huge bottleneck, limiting the actual rate to within 100Mbps. The Full Gigabit configuration of the ComFi I3000 4G industrial card router can “perfectly compatible with 100M to 1200M broadband”, ensuring that there will be no port bottleneck along the entire path from the broadband line to the router and then to the terminal device. Truly achieve “unleashing every megabyte of performance”. Whether it’s for large file transfer, local forwarding of multiple high-definition video streams, or connecting multiple devices with high bandwidth requirements, the wired network of ComIn I3000 can provide powerful performance.

Watch Dog Intelligent Anti Disconnection

The “Watch Dog” technology is a mature system reliability guarantee mechanism. ComIn I3000 4G industrial card router makes it intelligent and closely integrated with the network status. The core of it is an independent hardware timer and a “dog-feeding” software running in the main system. When the system is running normally, the main system will regularly (for example, every minute) send a “feed dog” signal to the watchdog timer, telling it “I’m still alive”. The watchdog timer will reset upon receiving the signal. If the main system fails to send the “dog feeding” signal on time for some reason (such as a system crash, infinite loop, or network interruption that prevents the dog feeding program from being executed), the watchdog timer will trigger a hardware reset signal after the timeout, forcing the entire device to restart.
The “Intelligent Anti-Disconnection” of ComIn I3000 4G industrial card router lies in the fact that its “dog-feeding” logic not only detects whether the system is alive, but also checks whether the network connection is normal. It may attempt to ping a public address (such as 8.8.8.8), or try to establish a heartbeat connection with the cloud management platform. Only when the network connection is also confirmed to have failed will it be determined as a fault that requires a restart. This intelligent judgment mechanism avoids false restarts caused by brief network fluctuations. When “the system crashes or is disconnected”, the watchdog will “automatically send instructions to wake up the system”, achieving automatic recovery without human intervention.

Metal Body with Excellent Heat Dissipation

Materials and Structural Design
The casing of ComIn I3000 4G industrial card router is made of high-quality industrial-grade metal materials. Compared with plastic shells, metal shells have multiple advantages. Firstly, it offers outstanding physical strength, effectively resisting external impacts and compressions, and protecting the internal precise electronic components from damage. Secondly, the metal material itself is a huge heat sink with excellent thermal conductivity. To maximize the heat dissipation efficiency, ComIn I3000 ingeniously designs “grille holes” on both sides of the body, forming efficient air convection channels. When the core components such as the processor and 4G module inside the device are working, the heat generated will be rapidly conducted to the surface through the metal casing. Then, through the grid holes on both sides, with the assistance of natural convection or the small fans inside the device, the heat will be quickly dissipated into the surrounding environment.
Dual advantages of heat dissipation and shielding:
The “outstanding heat dissipation effect” brought about by this design is obvious. Good heat dissipation can ensure that the internal temperature of the equipment remains within a safe range during long-term high-load operation, avoiding performance frequency reduction, system instability and even hardware damage caused by overheating, thus “making the machine work more stably”. Meanwhile, the metal casing also plays a crucial role – electromagnetic shielding. In complex industrial sites, various motors, frequency converters and high-power equipment generate a large amount of electromagnetic interference. If these interferences invade the interior of the router, they may affect the reception quality of 4G signals and even cause system logical errors. The metal body of ComIn I3000 4G industrial card router is like a “Faraday cage”, which can effectively shield external electromagnetic interference and also prevent the electromagnetic radiation generated by itself from interfering with other devices, ensuring the purity and stability of communication. This dual guarantee of heat dissipation and shielding greatly “effectively reduces equipment failure rate” and extends the service life of the equipment.

Industrial Grade Design

A true 4G industrial card router, its industrial-grade design is usually reflected in the following aspects:

Wide temperature operating range: ComIn I3000 4G industrial card router adopts industrial-grade wide-temperature components, enabling it to operate stably within an extreme temperature range of -35 ° C to +75 ° C (the specific value depends on the product specification). Whether it is the cold winter in Northeast China, the scorching summer in the south, or the heat generated inside the equipment due to long-term operation, none of these can stop it.
Anti-vibration and anti-shock: For mobile application scenarios such as vehicle-mounted, airborne, and shipborne, the ComIn I3000 4G industrial card router has been strengthened in structural design. The PCB board may have adopted a special fixing method, and key components may have undergone reinforcement treatment or potting process. The entire machine usually passes vibration tests in accordance with standards such as IEC 60068-2-6 and impact tests in accordance with standards such as IEC 60068-2-27 to ensure that it can still maintain structural integrity and normal function under continuous vibration and unexpected shock.
Dust-proof and water-proof: In environments with a lot of dust or where there is a possibility of contact with liquids, the protection level is of vital importance. The interface of the ComIn I3000 4G industrial card router body and the joint of the shell may have adopted a professional sealing design to achieve a protection level such as IP30 or higher, effectively preventing solid foreign objects and splashing water from causing damage to the interior of the equipment.
Power supply stability: The power supply environment in industrial sites is often unstable, with issues such as voltage fluctuations, surges, and spike pulses. The ComIn I3000 4G industrial card router is equipped with a wide-voltage input power module, which can adapt to a wide voltage input range of 9V-36V DC (the specific range depends on the product specifications), and has functions such as overvoltage, overcurrent, and reverse connection protection, ensuring safe and stable operation even under harsh power supply conditions.
User value

Cloud Platform Intelligent Management

The ComIn I3000 4G industrial card router can be seamlessly connected to the cloud management platform provided by ComFi. Through this platform, users can achieve:

Centralized monitoring: On a unified interface, the status of all registered ComIn I3000 4G industrial card router devices can be viewed. It includes key information such as online/offline status, 4G signal strength, network traffic, CPU/ memory usage rate, and device temperature. Any abnormal status will be alerted through the platform, making it clear at a glance for administrators.
Batch management: For users with a large number of devices, the batch operation function greatly enhances efficiency. Administrators can simultaneously perform operations such as configuration distribution, software upgrade, restart, and restore factory Settings on multiple selected devices without having to log in to each one individually, thus saving a significant amount of time and human resources.
Remote diagnosis and maintenance: When equipment malfunctions, administrators do not need to go to the site in person. Through the cloud platform, one can remotely log in to the device’s Web interface or command line to perform operations such as troubleshooting, log analysis, and configuration modification. This maintenance capability of “making strategic plans within the tent and winning battles thousands of miles away” has greatly shortened the time to Recovery from failure (MTTR) and reduced operation and maintenance costs.
Data analysis and reporting: The cloud platform can also collect and analyze the operation data of equipment, generating various reports, such as traffic statistics reports, online rate reports, fault statistics reports, etc. These data can help users better understand their network usage and provide data support for network optimization and capacity planning.

Application Scenarios

Smart massage chairs: Shared massage chairs in public places such as shopping malls, hotels, and airports require a stable network to support scanning code payment, member authentication, content playback, and data transmission back. The Dual SIM backup of ComIn I3000 4G industrial card router ensures the security of the payment process. Dual Band Wi-Fi provides users with a smooth mobile phone networking experience. The card locking function prevents SIM cards from being stolen. The cloud platform enables operators to remotely manage the network status of hundreds or even thousands of massage chairs, greatly enhancing operational efficiency.
Intelligent monitoring: Whether it is urban security, road monitoring, or temporary monitoring points at construction sites and reservoirs, real-time transmission of high-definition video streams is required. The 4G high-speed network and Full Gigabit LAN port of ComIn I3000 4G industrial card router can easily handle the bandwidth requirements of multiple high-definition cameras. The Watch Dog function ensures the 7×24-hour uninterrupted operation of the monitoring system; The Industrial Grade Design enables it to adapt to all kinds of harsh weather and environments outdoors.
Remote control of PLC: In the field of industrial automation, remote monitoring, program update and fault diagnosis of PLC (Programmable Logic Controller) are the keys to improving operation and maintenance efficiency. The 4G network of ComIn I3000 4G industrial card router provides a reliable remote access channel; Its serial port transparent transmission function can seamlessly convert the serial port data of the PLC into network data and transmit it to the remote control center. Industrial-grade design ensures its stable operation in the strong electromagnetic interference environment of the factory.
Intelligent public transportation: The intelligent public transportation system needs to realize multiple functions such as vehicle positioning, video surveillance, passenger Wi-Fi, information release, and dispatching instruction reception. The ComIn I3000 4G industrial card router integrates GPS positioning and can report the vehicle location in real time. Dual Band Wi-Fi provides passengers with high-quality Internet access services. Dual SIM backup ensures that scheduling and monitoring data are never interrupted; Its anti-vibration design perfectly ADAPTS to the vehicle’s operating environment.
Industrial control: In fields such as intelligent manufacturing, smart agriculture, and energy management, a large number of sensors and actuators require wireless connections. ComIn I3000 4G industrial card router can serve as an on-site data aggregation gateway. It uploads the collected data to the cloud platform for analysis via 4G network and receives control instructions from the cloud platform. Its rich interfaces and powerful processing capabilities enable it to handle complex edge computing tasks.
Smart express lockers: Express lockers require a network to support users in scanning codes to open the lockers, couriers in storing items, status information synchronization, and advertisement playback. ComIn I3000 4G industrial card router provides a stable and reliable network connection; The cloud platform management function enables the operators of express lockers to centrally manage a large number of lockers and respond quickly to network issues. Its sturdy and durable characteristics also ensure the reliability of the express cabinet when used outdoors for a long time.
Through these scenarios, we can clearly see that the ComIn I3000 4G industrial card router 4G industrial card router, with the synergy of its eight core features, has deeply permeated every corner of the social economy and has become an indispensable key infrastructure for promoting intelligent and networked transformation.

The ComIn I3000 4G industrial card router is by no means a simple industrial router. It is a future-oriented industrial connection ecosystem meticulously constructed with eight core features. From the “Dual SIM Card Backup” that ensures network sustainability to the “Dual Frequency Concurrency” that revolutionizes wireless experience; From the “Full Gigabit Wired Port” that unleashing the potential of wired connections to the “Watch Dog Intelligent Anti-Disconnection” that guards the self-healing of the system; From “Metal Body with Excellent Heat Dissipation” that provides physical protection to “Industrial Grade Design” that gives environmental adaptability; Then to the realization of “Cloud Platform Intelligent Management” for intelligent operation and maintenance, and finally realize its value in a wide range of “Application Scenarios”. Each feature precisely addresses the pain points of industrial applications. Every feature demonstrates its professionalism and strength as a top-of-the-line 4G industrial card router.

In today’s era when the wave of digital transformation is surging forward, choosing a stable, reliable, intelligent and powerful network connection partner is of vital importance to any enterprise or project. With its comprehensive functions, outstanding performance and rock-solid reliability, ComIn I3000 4G industrial card router undoubtedly provides a nearly perfect answer to the market. It is not merely a product, but a commitment – a commitment to provide your critical business with an unbreakable connection guarantee at any time and any place. If you are looking for a 4G industrial card router that can truly handle harsh industrial environments, meet diverse and complex applications, and provide a solid network foundation for your future intelligent development, then ComIn I3000 is undoubtedly your most reliable ultimate choice after careful consideration.