Power-up the Window Unit (WU) and Coverage Unit (CU) by connecting the power supplies and plugging them into mains electricity sockets.
Ensure that the link between the unit is up; check this by looking at the digital display on the Coverage Unit.
The link is up in any of these circumstances:
- The Link LED is on and the Digital Display is rotating
- The Link LED is off and the Digital Display is showing ‘0’
- The link LED is on and the Digital Display is showing ‘1’ – ‘9’
- The Digital Display is flashing ‘E’ followed by a number