What is the purpose of an isolated ground in the point-of-sale area of Wendy's?

The purpose of an isolated ground in the point-of-sale area of a restaurant like Wendy’s primarily focuses on protecting sensitive equipment. In this environment, point-of-sale systems often include computers, credit card readers, and other electronic devices that can be susceptible to electrical interference and surges. An isolated ground helps ensure that any electrical noise or transient voltages are kept from affecting the performance of the sensitive electronics, which is critical for maintaining accurate transactions and protecting customer data.

By using an isolated ground, the systems can effectively minimize the risk of equipment malfunction, data loss, or degraded performance due to electrical interference from other devices or common ground issues. This is particularly important in bustling environments where multiple devices are in use simultaneously.