You can understand these signals as two separate circuits.

Joey had also rewired the lights in the tunnel so the power for each half was on a separate circuit.

"The outer wall is on a separate circuit," he explained.

In Italy, a separate circuit for air-conditioning costs as much as $400.

One may also start with an infinite number of separate one-loop circuits.

We've got the place completely ringed, in three separate circuits.

Try feeding the radio from a supply which is on a separate circuit to the wipers.

A separate educational circuit too established in this area very recently.

In this figure, you can see that a relay consists of two separate and completely independent circuits.

The heavy water moderator is cooled in a separate circuit.