ref. Hardware for optic fiber (part 2)
Continuing the discussion from Hardware for optic fiber :
My internet provider replayed to me I cant’ use solution from topic (part 1), because it is GPON and receiver has to be ONT. So I re-ask my first question. Maybe other kind of optic fiber ↔ ethernet ↔ router converter? Does it make sense to go in this direction?
PS Any way to open automatically closed topic instead of making new one?
To continue the discussion over, in the optical world you have Interfaces, transceivers and different fiber types. And not all of these fits together. as for the last part, the fiber you typically use “Singlemode” OS2 G652 fiber cable or one of its derivatives from a provider into your home/business. this is the for now mostly used fiber type deployed. The other type “Multimode” OM1/2/3 are a bit cheaper, but tops out on a few hundred meters of fiber distance.
As for the second part the tranciever, this has a few form-factors, and are often tied tightly to the speed of the connection. keep in mind that a fiber connection most of the time does not have any speed autodetection, so you need to use a transceiver built for the speed your provider uses.
The next thing to consider is the technology used on the fiber, on a fiber to the Home / Business setting Ethernet and GPON is the two most used technologies deployed. There are also OTN, but that is mostly used internal in large ISP networks and not deployed to the end customer.
Here is a table with the most normal carrier speeds of the different tranciever types.
There could be derivations from this table but that is not considered a normal deployment.
SFP - 100Mbit / 1Gbit
SFP+ - 10Gbit
SFP28 - 25Gbit
QSFP+ - 40Gbit
QSFP28 - 100Gbit
QSFP56 - 400Gbit
All SFP optical modules are using the same footprint and all QSFP modules share the same footprint.
When considering the Interface used you need to see that is supports the correct carrier speed of your connection and choose the correct nic with the correct footprint and speed support.
A thing to note here is that a nic with a QSFP connection can be used to house SFP interfaces by using a QSA adapter. this way you could eg. use 10G optics on a 40G nic. (but you need nic support for this)
As for your connection you specified that it is a GPON connection, this is not directly compatible with Ethernet, and a normal GPON ONT sfp will NOT work in a Ethernet nic. But it exists sfp/sfp+ modules to convert between them. These sfp’s are then acting as a “media converter” from GPON to Ethernet and is plugged into your equipment.
One ting to note here is that these modules might work, but it depends on the type of GPON used by your provider. you also need information from your provider about the GPON type/carrier speed and configuration used on their end. You could try searching “SFP ONT on a stick” to find more information on these kind of modules.
I Hope this answers some of your questions 