Which sfp connections work for DADlink?

[Johnny Hulst]

Which sfp connections work for DADlink?

Can I use for example a Ubiquiti UniFi patch cable ? (UACC-DAC-SFP10-0.5M)
Or must it be madi sfp ?

Ubiquiti UniFi patch cable is way cheaper option then 2 madi sfp ?

Thanks,

Johnny

[creativecontrol]

Greetings,

I've been using the Avago compatible SFPs from ProLabs: AFBR-5701PZ. From other folks I've talked to, most similar Gigabit+ SFP modules seems to work just fine. I'll defer to others on the Ubiquiti UniFi patch cable question.

best,


Jeff

[Darryl Ramm]

Originally Posted by Johnny Hulst

Which sfp connections work for DADlink?

Can I use for example a Ubiquiti UniFi patch cable ? (UACC-DAC-SFP10-0.5M)
Or must it be madi sfp ?

Ubiquiti UniFi patch cable is way cheaper option then 2 madi sfp ?

Interesting question, and for many users a short SFP-SFP copper cable where two boxes are racked together might be more practical than more fragile optical cables.

I think you'll need somebody from DAD to answer that question. Or be adventurous and buy one and see...

You are comparing direct connect copper to optical, so being cheaper is not a surprise, even without the marketing tax for a "MADDI" SFP. You would lose the nice galvanic isolation of optical connections, but that might not matter for you.

MADI, based on old 100Mb FDDI uses the SFP connector. Here you are looking at a SFP+ connector designed for 10Gbit Ethernet (and other networks). But backwards compatibility in SFP/SFP+ means this "should work", but you never know what additional things, including deliberate vendor lock-in tricks might be done.

[uptheoctave]

Originally Posted by Johnny Hulst

Which sfp connections work for DADlink?

Can I use for example a Ubiquiti UniFi patch cable ? (UACC-DAC-SFP10-0.5M)
Or must it be madi sfp ?

Ubiquiti UniFi patch cable is way cheaper option then 2 madi sfp ?

Thanks,

Johnny

Originally Posted by Darryl Ramm

Interesting question, and for many users a short SFP-SFP copper cable where two boxes are racked together might be more practical than more fragile optical cables.

I think you'll need somebody from DAD to answer that question. Or be adventurous and buy one and see...

You are comparing direct connect copper to optical, so being cheaper is not a surprise, even without the marketing tax for a "MADDI" SFP. You would lose the nice galvanic isolation of optical connections, but that might not matter for you.

MADI, based on old 100Mb FDDI uses the SFP connector. Here you are looking at a SFP+ connector designed for 10Gbit Ethernet (and other networks). But backwards compatibility in SFP/SFP+ means this "should work", but you never know what additional things, including deliberate vendor lock-in tricks might be done.

I've tested 10G copper SFP's just now and it doesn't work, unfortunately.
It needs to be optical, Gigabit or better.

Ubiquiti UF-MM-10G works great here.
They are more expensive than the one Jeff mentioned but I had them to hand.

[BScout]

I'd love to know if the DAD branded transceivers are 1Gbit SFP (strangely can't find that info anywhere.) Some pictures show them to be Avago units.

Talking about MOD-SFP-1300-LD (which is the DAD 647-110 unit)

Anyone have the info?

[Darryl Ramm]

If the module label is not enough...

Anybody with a SFP/SFP+ Ethernet NIC card in their Mac should (might?) be able to plugin one of those modules in and dump some module info, I think it's just in the ifconfig -m -v <interface> output (don't have one here to check).

On Linux it's ethtool -m (what I've actually used anytime to track down what modules are or what they are lying they are).

[BScout]

Originally Posted by Darryl Ramm

If the module label is not enough...

I have a few on order (hopefully should arrive next week) for a Core256 but don't have the actual modules in-hand yet to look at the label. (and I don't trust the images shown on retailer websites because they have been wrong often.) I have 2 others but they are in use in a different MTRX so can't pull them. And then 2 others are on a MTRX in the UK (far from LA) and we had some trouble there. Can't even remember what is working on that system now (it was one DAD module plus one other but that didn't work. We found that two DAD modules or two of the other module brand worked, but they would not work if they were "mixed" on the same system. Really bizarre and annoying)

I thought for sure that DAD would at least list the specs of their "own" modules somewhere.

[creativecontrol]

None of the previous NTP optical MADI SFPs that were sold are Gigabit including those Avago units you mention - which were the most popular 1300nm optical MADI units.


best,


Jeff

Originally Posted by BScout

I'd love to know if the DAD branded transceivers are 1Gbit SFP (strangely can't find that info anywhere.) Some pictures show them to be Avago units.

Talking about MOD-SFP-1300-LD (which is the DAD 647-110 unit)

Anyone have the info?