
Cellular Gateway Routers

Cellular gateway routers, often referred to as cellular routers, are devices that provide connectivity to the internet or other networks over a cellular data network. They are commonly used in areas where traditional wired internet connections are not available, are unreliable, or are impractical. These routers can be an ideal solution for providing connectivity in remote areas, during emergencies, or for applications like fleet management and remote monitoring.
Cellular gateway routers operate by connecting to a cellular network via a SIM card and then sharing that connection with devices either through an Ethernet connection or WiFi. The router's primary function is to receive and send data packets over the cellular network, essentially serving as a gateway between the cellular network and the connected devices.
These devices typically support one or more of the common cellular technologies, including 4G LTE, 3G, and even the newer 5G networks. Some cellular routers are designed to fall back to a lower speed network (like 3G) when the higher speed network (like 4G or 5G) is not available.
Products
Ethernet hubs, switches and routers connect computers to networks, devices and other computers.
Ethernet hubs are the least intelligent of the three devices. They simply take any message that is received and transmits it to every other device connected to that hub. For example, if CPU 1 on a network wants to send a message to CPU 5, it will send that message through the hub.The hub will then take that message and send it out to every connected device on that hub regardless of the intended target. When CPU 5 receives that message and wants to respond, it will send its response through the hub which sends it to every connected device. Ethernet hubs do not manage any data that is sent and tend to bog down networks. They also do not offer much security for the network. For these reasons, Ethernet hubs are are being replaced with network switches.
Switches transmit data from one device to another on the same network. Unlike a hub, switches use a switch table to learn where data came from and where to send it. Switch tables store Mac addresses and device ports. By storing this data, a switch can operate more efficiently than a hub, greatly reducing the traffic within the network.
Routers transfer data between devices while learning the location of those devices within the network. They are also a junction between two or more networks. An example of this would be a home router where the home network is connected to the Internet. Another example would be when the router connects two or more networks with different business functions. In addition to connecting two or more networks, a router offers important security features that help protect the network.