System expansions
Opening the casing
►
Switch off the device. The device must not be in the energy-saving mode!
Please take note of the safety information in the "Important notes" chapter.
!
Pull the power plug out of the mains outlet!
►
Remove all cables from the casing.
►
Place the casing in a convenient working position.
On devices with main power switch
Turn the key in the direction of the arrow to unlock the casing (see "Mechanical casing lock
►
(optional)").
a
►
Press the two locking catches (1), hold them pressed and slide the upper casing in the direction
of the arrow (2) until the spacing (a) is approximately 2 cm.
►
Lift off the top cover in an upward direction (3).
38
2
2
1
1
3
3
1
A26361-K691-Z220-1-7619, edition 2