15
Line 1
To telephone wall sockets
Line 2
Line 3
Line 4
Line 4
socket
Line 3
socket
Line 2
socket
Line 1
socket
4-line controller
3
Install the back-up battery
Remove the Controller cover. Insert the 9V battery.
Replace the cover.
In the event of a mains power failure the back-up battery keeps your
Airway controller working for around 30 minutes.
SETTING UP