After you have added a camera, you can test the signals by going in to the chosen Site.
In the Cameras tab you will see the "Enable Signal Test" button, You can use this button to turn your cameras on to test mode.
Once you have enabled signal testing, you will see the green On Test indicator right beside the camera name and ID.
To see the results of your test, you will navigate to the Log tab. From there, you can choose the type of activity, Signal Test, where you will see information on the signals. "Received At" will tell you the time the signal was received, "Objects Found - Confidence" will shoe you the confidence of the item found in the signal, "Starred" will be where you can Star a signal and "View Image" will show you a link to the shot of the signal test. If you don't see any information yet, you can hit the purple Refresh button to get updated data. You can choose to filter out any unstarred Signals.
Once you have received all desired signals, you can click "Disable Signal Test". You can use the Disable button, at any time, to take the camera off of test.