Fiber vs. Ethernet sonic differences

[TRHH]

Why do you need these exact specs?

Because this looks more like the ones you use for cabling in data centers, enterprise networks, telecom rooms, server farms, cloud storage networks aso where you need km's of them and bend insensitive ones are required for saving space.

Because grade B is the best standard:



and "bend insensitive":



And with APC connectors then you have the best.

Torben

PS: Please note that Grade A is not approved jet.

 

[MarcelNL]

Because grade B is the best standard:

View attachment 107336

and "bend insensitive":

View attachment 107337

And with APC connectors then you have the best.

Torben

PS: Please note that Grade A is not approved jet.

From what I read about APC vs UPC made me think the decision is driven by the SFP module and somehow I concluded UPC is what is used, am I wrong there?
Actually using Corning with UPC B grade connectors with my Finisar 1474 BTL FSP modules...so do I need to order some B grade (they actually use A ) APC ?

 

[TRHH]

From what I read about APC vs UPC made me think the decision is driven by the SFP module and somehow I concluded UPC is what is used, am I wrong there?
Actually using Corning with UPC B grade connectors with my Finisar 1474 BTL FSP modules...so do I need to order some B grade (they actually use A ) APC ?

Hi.

So far I found no Corning with UPC B grade connectors - I only found this:

LC-LC duplex 9/125µm Corning ClearCurve single mode bend insensitive fiber optic patch cable

LC-LC duplex 9/125µm Corning ClearCurve single mode bend insensitive fiber optic patch cable

www.fiberoptics4sale.com

But there is no information about B Grade.

Where did you find Corning with UPC B grade connectors?

If you look at APC:

APC Fiber Connector - Angled physical contact connectors are designed to minimize the back reflection even more efficiently. The ferrule end-face of these connectors is polished at an angle of 8 degrees. Thus, any light that reflects at the point of termination is reflected at a steep angle so it cannot travel far towards the source. in other words, this polish style forces the light to reflect into the cladding rather than the sources.


So compared to UPC, APC would be an improvement.

I think APC would work fine with Finisar - but again I don't know much about Finisar.

PS: "(they actually use A )" - I am not sure what you mean. "A grade" has not jet been released.

Torben

 

[MarcelNL]

there is light at the end of the yellow tunnel, did you look at my earlier post?

sure; https://www.fs.com/de-en/products/61326.html

takes a little while to get made but IMO well worth the wait.

 

[MarcelNL]

Product Highlights

Offered in PVC/OFNP Flame-retardant Jacket
Available in Standard LC/SC/FC/MU Grade B Connectors with 0.12dB Typ. IL
G.657.A1 Bend Insensitive Fiber & 10mm Min. Bend Radius
PVC (OFNR) Flame-retardant Jacket
Grade A Precision Zirconia Ferrule Connectors Ensure Low Loss
TIA 604 (FOCIS) & IEC 61753-1 Standard
Designed for Long-haul 1/10/40/100/400G Networks

guess those connectors are labeled as grade B because A is not yet official (so I read here)

 

[TRHH]

there is light at the end of the yellow tunnel, did you look at my earlier post?

sure; https://www.fs.com/de-en/products/61326.html

takes a little while to get made but IMO well worth the wait.

Hi

Have already ordered the LC-UPC cable (it is a Corning SMF-28 Ultra fiber). Will order the APC version later.

The APC version (2 Meter) is roughly 20 EURO.

What I don't understand:

https://de.farnell.com/phoenix-contact/1115640/lwl-kabel-lc-duplex-lc-duplex/dp/3462893

is almost 79 EURO (also APC).

But there is the different?

Torben

 

[MarcelNL]

Hi

Have already ordered the LC-UPC cable (it is a Corning SMF-28 Ultra fiber). Will order the APC version later.

The APC version (2 Meter) is roughly 20 EURO.

What I don't understand:

https://de.farnell.com/phoenix-contact/1115640/lwl-kabel-lc-duplex-lc-duplex/dp/3462893

is almost 79 EURO (also APC).

But there is the different?

Torben

appears to me that the major difference is the profit margin.

 

[TRHH]

IMPORTANT

Make sure that the SFP that you are using support APC as well.

I use StarTech (Cisco Meraki MA-SFP-1GB-LX10 kompatibel SFP Transceiver Modul - 1000BASE-LX) and I did get this information from them:

“Unfortunately, all StarTech com fiber products use UPC connectors, which are not compatible with APC connectors. UPC and APC connectors cannot mate with one another because causes the fiber cores don’t touch. This can cause a degraded connection or none at all”

Torben

 

[MarcelNL]

we'll see if it supports APC...if it sounds worse or does not work I still have the grade B LC-LC UPC cable in place

 

[TRHH]

Just installed LC-LC Duplex 9/125µm Corning ClearCurve Single Mode Bend Insensitive Fiber Optic Patch Cable



Torben

 

[kostas6a3]

For some time now I have been using two network switches (Melco N100 and UpTone EtherREGEN) which I connect to Finisar FTLX1475D3BTL with optical fiber PHOENIX CONTACT Single-mode OS2 duplex jumper, LC-LC, UPC polishing 1m.
In the datasheet of both Melco and EtherREGEN as well as Finisar I did not find any mention of connector-socket compatibility.
I also don't know if there will be a difference in SQ between APC and UPC.
If anyone has found it, please help.

 

[MarcelNL]

I would not get upset over the potential difference, if you're patient I'll let you know in about 3-4 weeks...using te same FSR as you and indeed the spec sheet says nothing other than LC-LC

 

[TRHH]

Customized Grade B Duplex Typical 0.12dB IL OS2 Single Mode LC/SC/FC/MU 2.0mm Bend Insensitive Fiber Optic Patch Cable has arrived






Torben

 

[MarcelNL]

and, what is the verdict?

 

[TRHH]

and, what is the verdict?

Installation within the next couple of days

Torben

 

[TRHH]

Below a comparison of:

Fosco: LC-LC Duplex 9/125µm Corning ClearCurve Single Mode Bend Insensitive Fiber Optic Patch Cable

and

FT: Customized Grade B Duplex Typical 0.12dB IL OS2 Single Mode LC/SC/FC/MU 2.0mm Bend Insensitive Fiber Optic Patch Cable


Torben

 

[MarcelNL]

Finisar 1475BTL is confirmed to work with LCLC APC - LCLC APC fiber, and it has a small advantage over LCLC UPC- LCLC UPC....eerrr at this level the advantage is not so small I think....

 

[MarcelNL]

after a night's sleep and permanently installing the wat now is the third LCLC fiber stretch I am rethinking the original verdict...the difference is not small at all, more microdetails are somehow leaving the music more intact, as if a cellist left hand is suddenly adding more vibrato...just that it's not more it's much clearer and cleaner.

 

[MarcelNL]

now to find a network setup that sounds best...yesterday I removed all other internet connections from the router and put those on a switch and that makes quite a difference.. I was trying to switch off WIFI in the router using a repeater as Access Point but that was handicapped by the fact W11 pro requires WPA 3 and does not tell when the reason for 'no internet' is a mismatch in the security protocol

 

[TRHH]

now to find a network setup that sounds best...yesterday I removed all other internet connections from the router and put those on a switch and that makes quite a difference.. I was trying to switch off WIFI in the router using a repeater as Access Point but that was handicapped by the fact W11 pro requires WPA 3 and does not tell when the reason for 'no internet' is a mismatch in the security protocol

@MarcelNL - Very interesting. Did you install just a cheap switch?

Torben