Selling and Administrative Expenses, also called Selling, General and Administrative Expenses, are the net operating expenses of the business that are not part of the cost of goods sold. Examples of selling and administrative expenses include advertising and the salaries of people not directly related to manufacturing a product, as well as recurring expenses as insurance and rent.
For those of you wondering, what is a protection relay? Littelfuse has the answer. A protection relay is a smart device that receives inputs, compares them to set points, and provides outputs. Inputs can be current, voltage, resistance, or temperature.
A communication device is a hardware device capable of transmitting an analog or digital signal over the telephone, other communication wire, or wirelessly. The best example of a communication device is a computer Modem, which is capable of sending and receiving a signal to allow computers to talk to other computers over the telephone. Other examples of communication devices include a network interface card (NIC), Wi-Fi devices, and an access point.