Catalyst 3860 airflow question

johndsmith · ‎03-24-2020

I have some Cisco Catalysts 3850 switches, model WS-C3850-12X48U-S.

I noticed that the airflow is currently rear exhaust. Can the fans and power supplies be replace with

portside exhaust? We are moving this equipment to a data center with specific hot aisle cold aisle

requirements and the current airflow setup needs to be reversed.

So can this be done on this model?

And, what are the part numbers for the replacement fans and power supplies?

marce1000 · ‎03-24-2020

Ref :

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/hardware/installation/guide/b_c3850_hig/b_c3850_hig_chapter_01.html

I doubt it :, it will probably the same for your model

WS-C3850-48XS-S

IP Base

Catalyst 3850 switch with SFP+ transceivers, 48 ports that support up to 10 G, and 4 QSFP ports that support up to 40 G. 750 W power supply.⁴

The airflow direction for this switch is from the front panel to the rear panel.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

Reza Sharifi · ‎03-24-2020

Hi,

No, that is not possible on the 3850 series, as they are fixed. The solution to this issue could be that you may want to rack the switch the opposite way so it exhaust the hot air to the hot aisle.

HTH