How is an ISA splitter powered?

An ISA splitter, or Integrated Splitter Amplifier, is powered through a phone port. This method of powering the splitter is common in telecommunication setups, as it allows the device to draw power directly from the phone line that is providing the data signal. The phone port carries low voltage electrical power along with the data, enabling the splitter to function without the need for a separate power source.

In contrast, connecting to a main power outlet, using battery power, or utilizing solar energy are not applicable methods for powering an ISA splitter. Main power outlets typically require higher voltage than the ISA splitter is designed to handle, while battery and solar power sources would not provide the consistent power delivery required for reliable operation in a telecommunications environment.