Check the optics, but often the maximum Rx is hotter than the maximum Tx. 



----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 




----- Original Message -----

From: "Ken Hohhof" <khoh...@kwom.com> 
To: "AnimalFarm Microwave Users Group" <af@af.afmug.com> 
Sent: Monday, August 26, 2024 10:28:10 AM 
Subject: [AFMUG] fiber patch cables 



Is there a minimum length for a single mode fiber patch cable? 

I have been using 1 meter cables and they are almost always too long, I’m 
talking about going between routers and switches in a rack, stuff like that. I 
see that FS sells 0.5 meter cables, but I saw somewhere like maybe on Reddit 
someone claiming there was a minimum length. Given SM fiber and LR optics, I 
don’t see how 0.5 or 1.0 meter would be different they are both essentially 
zero length. 

Probably there’s some kind of cable tray or cable management solution I could 
be using but I’ve never liked such things. 
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