There are many advantages to using a router, DTU or switch, but as with any network connection, security is one of the most important elements when designing a system. We'll look at a few areas, and where security breaches can arise in the cellular ecosystem. There are four main areas to consider:
●Outgoing data
●Incoming data
●Public/Static IP address
● Dedicated IP address.
Let's use a typical application to evaluate security concerns:
Monitor power usage of remote utility power transformers
In this use case, inductive loads can cause a phase imbalance between current and voltage. Power companies will remotely switch large capacitor banks on and off to correct power factor. There are many companies that manufacture power factor monitoring equipment. These devices usually have a serial or Ethernet port as a data communication interface. The problem with this initial situation is that the power factor data to be analyzed is local, while the monitoring facility is located tens of kilometers away, even half the size of the globe.
