Optimising optical: converter, SFP module and cable choices

@Anupc - I am not sure we are talking about the same filter. I am not sure what you mean by filter?

I am talking about broadband line filter.


:thinking: Care to explain what you believe a “Broadband line filer” is?

For clarification, I’m currently using a Ubiquiti Unifi switch (the main switch for my study) into a Network Acoustics switch running over 10m of Single Mode fibre (both switches have SFP ports).

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Dusting off a few relevant posts as my Trendnet TFC-1000MGA duo arrived today from the US. I’m going to send them straight back as the mains plugs have a pin missing :slight_smile:

@BillK was spot on. Nowhere near as impressive a build of discrete components as @Anupc 's v1.0.

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I only see 1 major change, the removal of a choke - which arguably was for chassis hot-insertion. And a couple of minor changes, like the through-hole Capacitor replace by an MLCC, and through-hole Crystals replaced by Surface-mount ones.

The most important aspect, the discrete Ethernet Port magnetics remains, although they seemed to have changed supplier for that part, but the specifications look identical.

V2 looks to be more about manufacturing modernisation/efficiency rather than cost-cutting.


Moving to more surface mount components and more manufacturing efficiency is cost cutting.

The Realtek RTL8367SB-CG used for the V2 module is also a bit cheaper than the RTL8213M used on the V1 module.

Cost cutting does not mean poorer performance per se, but rather the cost savings must have been great enough for them to bother to spin the board as none of the obvious components on the V1 board come up as discontinued, the other reason boards usually get respun.


Thanks both; I think you’re in violent agreement! Cost-cutting and efficiency are basically the same thing viewed through different lenses; you could argue they may have different primary drivers if you wanted to do the hair-splitting thing but I don’t think there’s much to be gained.

@Anupc obviously knows enough about circuit boards to recognise a choke and @BillK obviously knows enough about circuit board production to use terms like spinning. Got to admire an expert. :pray:

Suitably reassured here. Listening to follow.

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I just discovered this product: TeraDak T-S211 (SC)


With a TCXO or OCXO clock. The OCXO version is 100$ on top. Not sure what the benefit would be.


As discussed elsewhere, yet another product which helps to reinforce the myth that ethernet clock accuracy can have any impact on the quality of digital data which emerges.

Having said that, it doesn’t seem to have attracted the audiophile tax so might be bargaintastic…

Will take a closer look. Thanks