Siemens PC 670 - Manual (Page 29)

Starting Up the Computing Unit Release 04/02
2-5 Panel PC 670 Computing Unit, Equipment Manual
Permissible installation positions for the computing unit complying with
UL1950/EN60950/CSA22. 2 No. 950
An angle of inclination of
±
20
_
is allowed installation position.
Position 1 (preferred position) Position 2 *)
Position 3 (desktop) Position 4 (cover) **)
*) Not permitted where an LS240 drive is installed.
**) Not permitted where a disk/CD-ROM/LS240 drive is installed.