hAP ax S + SFP ONT Temperature

Hardware MikroTik hardware general
1

Hi, I bought a hAP ax S earlier this year along with a Leolabs Leox LXT-010S-H fiber module to connect to my residential fiber network to replace an Orange Livebox 5. I finally set it up today after getting through all the slightly incorrect guides on the internet and one thing I noticed is the extreme heat of the fiber module. It is definitely too hot to touch, so it's got to be at least 45C. Is this normal or may I have done something wrong?

I checked the product page (https://mikrotik.com/product/hap_ax_s) and it says the ambient temperature can be as high as 70C but what about the internal temperature of the router?

As far as I can tell, the Livebox 5 that I replaced isn't that hot on any exposed surface.

Update: I didn't realize RouterOS had some sensing capabilities and the current temperature of the fiber module is 69C. The fiber module is rated as high as 85C.

2

for the sfp to read e.g. temperature

/interface ethernet monitor <sfp-interface-name>

and for the hap ax s. it should have at least a cpu temperature reading:

/system health print
3

Interesting, I never had a Mikrotik device that exposed any temperature sensor values. My CPU temperature has been somewhere between 67-69C when I've looked at it recently and the SFP reading is reliably around 69C. Hopefully it will be a lower temperature when it isn't as hot around here.
As a side note, the leolabs people have a post mentioning that their modules can get very hot, so it's probably something I should have expected: https://www.leolabs.pl/blog/sfp-slots-in-context-of-gpon-sfp-stick.html .

4

And it is a fiber module, a copper one would probably be over 80°.