The Display Hub+ has 2 important wires that exit from the back of the device.
"Piggy tail" antenna:
A short white wire that extends from the back of the panel and gives the Display Hub+ additional range for superior function
The "Piggy tail" antenna should be extended away from the Display Hub+ and lay outstretched behind the panel.
AC Adapter Power Cable:
A long white power cord that ends with the AC power adapter. This cable and plug provide power to the Display Hub+ when connected to a power source.
The power cable should kept away from liquid and be securely plugged into a powered plug socket.
Although the panel has battery back-up, the power cord should always be plugged into a power source.