CA-805B has terminals at both ends, and noise is injected from them, but only one side has a GND terminal. Is there any difference in the coupled noise when the noise input is applied from the terminal opposite the GND terminal side compared with when it

CA-805B has terminals at both ends, and noise is injected from them, but only one side has a GND terminal. Is there any difference in the coupled noise when the noise input is applied from the terminal opposite the GND terminal side compared with when it

The coupled noise changes very little whether it is applied from the GND terminal side or the opposite side.
However, the side connected to pulse out tends to have more coupled noise.
(In practice, the above tendency may vary depending on cable routing, connected equipment, and the test environment,
but for example, when both ends of the cable are open, CA-805B is coupled at the center of the cable, and the noise applied to both ends is measured, the side connected to pulse out will be higher.)