Caps hate cold unless they are rated for it.  
-40 you have to design for
+120 you can deal with.  

From: Adam Moffett 
Sent: Tuesday, May 14, 2019 4:52 PM
To: [email protected] 
Subject: Re: [AFMUG] Mikrotik Fiber SFP+

+1

Heat may cause wear and tear, but cold can outright break stuff.
(Except I'm closer to 20 years than 40)



On 5/14/2019 6:02 PM, [email protected] wrote:

  I have had more problems with low temp than high over the past 40 years.  

  From: Trey Scarborough 
  Sent: Tuesday, May 14, 2019 3:41 PM
  To: [email protected] 
  Subject: Re: [AFMUG] Mikrotik Fiber SFP+

  with SFPs the temp ratings have a double meaning. The ones rated industrial 
actually have better components in them so they tend to have a better chance of 
survival in any situation. I wouldn't necessarily worry about the low end as 
much as the high end. Its not that hard for a switch in an enclosed boxto get 
very hot if not vented. especially with a few sfp ports in it. 




  On 5/14/2019 8:40 AM, Ken Hohhof wrote:

    What about 10/100/1000 SFPs?  Is it worth ordering the custom ones from 
FS.com to get the temperature specs down to -40 C?

     

    We’re deploying some CCR1036 at sites that get really cold in winter and 
using the 4 SFP slots for additional GigE ports might save having to add a 
switch.  Or maybe with self-heating the SFPs won’t actually get below 0 C?  
That seems optimistic when it’s -25 F in the unheated building.

     

    From: AF mailto:[email protected] On Behalf Of Trey Scarborough
    Sent: Tuesday, May 14, 2019 2:51 AM
    To: [email protected]
    Subject: Re: [AFMUG] Mikrotik Fiber SFP+

     

    Ok so the best way I have found is to order the custom ones.

    https://www.fs.com/products/37257.html

    If these are going in a Mikrotik that is not in an environmentally 
controlled space you will want to choose the -40 to 85c option that you will 
probably have much better results. The normal Mikrotik SFPs I believe are 0 to 
70.

    Yes they take some time extra time to be delivered typical time frame is 
3-5 weeks. As well it might cost you %25 more thanks to the import taxes, but 
in my mind $3 on a $11 sfp is worth it.

     

    Trey

     

    On 5/13/2019 8:12 AM, Joshua Stump wrote:

      We’ve been using these and they’ve been solid:

      https://www.fs.com/products/75325.html

       

      Joshua Stump

      Network Admin

      Fourway.NET

      800-733-0062

       

      From: AF mailto:[email protected] On Behalf Of dave
      Sent: Monday, May 13, 2019 8:59 AM
      To: [email protected]
      Subject: Re: [AFMUG] Mikrotik Fiber SFP+

       

      What about 1G SM/MM SFP?

      I get so fed up with mikrotik modules that have temp,speed or just plain 
stop working








      On 5/9/19 2:01 PM, Richard Strittmatter wrote:

        https://www.fs.com/products/11591.html

         

        We use a bunch of these.. Dell Coded, Intel coded, generic.. doesn’t 
seem to matter, they all work fine for us.

         

        We’ve also used their bidi, and cwdm ones with no issues.

         

        Richard

         

        From: AF [mailto:[email protected]] On Behalf Of SmarterBroadband
        Sent: Thursday, May 9, 2019 1:36 PM
        To: 'AnimalFarm Microwave Users Group' mailto:[email protected]
        Subject: Re: [AFMUG] Mikrotik Fiber SFP+

         

        Which one?

         

        From: AF [mailto:[email protected]] On Behalf Of Richard 
Strittmatter
        Sent: Thursday, May 9, 2019 10:01 AM
        To: 'AnimalFarm Microwave Users Group' mailto:[email protected]
        Subject: Re: [AFMUG] Mikrotik Fiber SFP+

         

        Fs.com

         

        From: AF [mailto:[email protected]] On Behalf Of SmarterBroadband
        Sent: Thursday, May 9, 2019 11:58 AM
        To: 'AnimalFarm Microwave Users Group' <[email protected]>
        Subject: [AFMUG] Mikrotik Fiber SFP+

         

        Hi

         

        We are using CCR 1036-8G-2S+, what Single Mode LR Fiber 10G SFP+ 
compatible modules are you using successfully?  

         

        Thanks

         

        Adam






       





--  Trey ScarboroughVP Engineering3DS Communications LLCp:9729741539 
     

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