The standard method of communication for site controllers in Radiant stores is often through what technology?

The standard method of communication for site controllers in Radiant stores is through serial communications. This technology is widely used in various retail environments due to its simplicity and effectiveness in connecting devices. Serial communications transmit data one bit at a time over a single channel, which makes it ideal for point-to-point communication between a controller and a peripheral device—like a terminal or a scanner—within a store setup.

This method is particularly advantageous in scenarios where long-distance communication is not necessary, as it is cost-effective and requires less complex cabling compared to other options. Serial communication protocols, such as RS-232 or RS-485, are commonly utilized in retail settings, enabling reliable communication between the controllers and other hardware.

While the other methods listed, such as wireless routers, fiber optics, and Ethernet cables, have their own benefits and use cases in different applications, they are not the standard communication method specifically for site controllers in Radiant stores. Serial communications remain traditional and widely adopted in this context.