Quick definition: TAC stands for Type Allocation Code (though it was formerly known as Type Approval Code). These eight-digit numbers identify a cellular device’s manufacturer and model number, as well as the regulating body that approved it. TAC numbers are always the first eight digits in a device's IMEI number.
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eSIM vs. Nano SIM Form Factors: What’s the Difference?
When choosing a SIM card for your cellular device, size matters. Smaller SIM cards take up less space, freeing manufacturers to build smaller devices and add additional components—which is especially valuable in Internet of Things (IoT) applications. Depending on how and where your device will be used, it may also be important to have a more durable SIM card that can handle extreme temperatures and conditions like corrosion and vibrations.
SIM, eSIM vs iSIM: What’s the Difference?
As you explore cellular components, at times you may hear several different terms for components that provide the same core function, such as a SIM, eSIM, and iSIM. The difference between these components could have a significant impact on your device’s future functionality, security, and scalability, so it’s important to understand the differences between them.
A Comprehensive Guide to IoT Protocols
When network entities like servers, gateways, routers, applications, and connected devices interact, protocols give them a shared language. A protocol is a set of rules both network entities must have in common in order to communicate. It governs what their interactions look like, what values and attributes can be transmitted, how they’re received and processed, what security methods will be used, and more.