I’m looking for some advice on which SFP cable to use to connect my UDM Pro to a Ubiquiti US-24 (Gen 1) switch. I tried using a 10Gtek SFP+ DAC cable and forced both ports to 1 Gbps FDX, but unfortunately I couldn’t get a link.
Has anyone had success with this setup? Which cable would you recommend? I’m open to using Ubiquiti-brand fiber with SFP/SFP+ modules if that’s the most reliable option.
These are the modules and patch cable I am considering buying…
Hi Greg, thanks for your reply, much appreciated. I might look into to the rj45 sfp + cat patch cable, but my thought is that going with a fiber patch cable + multimodal sfp terminal might be a better option.
The rj45 sfp module might be less expensive, but the benefits of the sfp modules + fiber patch cable outweighs the slightly higher cost…
Passive fiber optics generate no heat in the switch/UDM, reliable link (less chance of negotiation errors) and lower electrical noise (immune to EMI)
Gigabit SFP to rj45 doesn’t really generate much heat. For those situation I wouldn’t buy a 10 gigabit to rj45, you’ll get no benefit. Fiber isn’t really going to get you any benefit, but they are cheap enough to get into, like $6-$10 each module for multimode, and jumpers are into the $10 range. I have a bunch of 10g modules that came with used cards, I use them when needed. I also have a few DAC cables for 10g-10g. Almost anything that requires 1g will be SFP to rj45 for ease of use. I have a bunch of FS branded 1g modules in my 10/40g switch just for certain use cases, even found a module that will go down to 100mbps for one portable device.