6
• Reserve 10 U space between the devices or add a 3 U air deflector to redirect air flows to
minimize the mutual heat dissipation impacts on the devices.
• Reserve at least 4 U space when you route fibers or install other passive devices to facilitate
subsequent air inlet or dust filter cleaning.
Without an air deflector With an air deflector
Front view Side view Front view Side view
10U
4U
3U
If the MA5800-X2 subrack is installed in a subrack with B-T airflow, you are advised to add
an air deflector to the subrack so that the hot air does not direct flow to the MA5800-X2.
When 2 U space is reserved at the air inlet and 3 U space is reserved at the air outlet, the
cabinet panels will have less impact on the heat dissipation of the MA5800-X2.
Active device
When the cabinet accommodates two MA5800-X2 subracks or one MA5800-X2 subrack and
another device
5 Space Requirements on Third-Party Cabinets
Air deflector (3 U)
5.2 When the Cabinet Accommodates Two Subracks
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