Siemens S5-135U/155U appendix Upper Subrack, S5-90U/95U/ 100U Lower Subrack, Min. Clearances

Models: S5-135U/155U

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Installation Guidelines

Where subracks (CC and EU) are arranged one above the other, the installation clearances in the following table must be observed.

Upper Subrack

S5-135U/ 155U or

S5-115U or

S5-90U/95U/ 100U

Lower Subrack

S5-135U

S5-115U with fan

S5-115U without fan

S5-90U/ 95U/ 100U

Min. Clearances

75 mm

87 mm if baffle

is used

60mm 100 mm 75 mm

Max. Clearances

The maximum clearance is limited by the lengths of connecting cables for the interface modules.

The following two points should be observed to improve the air circulation within the cabinet:

SThe expansion unit with the greatest power dissipation to be removed should be the upper unit.

SIf subracks of the S5-135U/155U series are installed together with subracks of the S5-90U to 115U series in one cabinet, the rear panels of all subracks must be at the same distance from the rear wall of the cabinet.

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System Manual

C79000-G8576-C199-06

Page 62
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Siemens S5-135U/155U appendix Upper Subrack, S5-90U/95U/ 100U Lower Subrack, Min. Clearances, Max. Clearances