Media Converter -> Ethernet SFP module for Internet Box Standard

@ivesleutenegger you can use the normal fiber connection kit from Swisscom.

@ivesleutenegger the way you posted it doesn’t work.

This is how it works:

OTO socket Port2-> Fiber kit from SC-> MC220L (TP-Link)-> Ethernet cable (1Gbit (min Kat5e))-> MC220L (TP-Link)-> Fiber kit from SC-> SFP port Internet box.

See Page 8 Manual

In my opinion, it is cheaper to install a fiber cable (ready-made) in parallel (extension cable costs (4.- Chf/m).

Specification of the fiber cable here

P.S. This is the correct module if you like You need a Swisscom Fiber kit. PM (private mail) to me.

A private customer cannot order the Swisscom Fiber kit.

@ivesleutenegger the SFP port from the Internet box only works with a fiber module as far as I know.

Try makes you smart.

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@user109 wrote:

…

P.S. This is the correct module if you like You need a Swisscom Fiber kit. PM (private mail) to me.

A private customer cannot order the Swisscom Fiber kit.

…

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I came across this slightly older [post](https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Media-Converter-gt-Ethernet-SFP-Modul-f%C3%BCr -Internet Box Standard/m-p/438994#M932 “https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Media-Converter-gt-Ethernet-SFP-Modul-f%C3%BCr-Internet-Box-Standard/m-p/ 438994#M932”). Maybe it will find more readers in the future. I would therefore like to make the following (corrective) comments:

The description for the [SFP from Flexoptix](https://www.flexoptix.net/en/sfp-bidi-transceiver-1-gigabit-sm-tx1310nm-rx1550nm-10km-12db-ddm-dom. mentioned in user109’s post .html According to the link provided, “https://www.flexoptix.net/en/sfp-bidi-transceiver-1-gigabit-sm-tx1310nm-rx1550nm-10km-12db-ddm-dom.html”) is: “1G SFP BIDI LX LC 10 km, TX1310 / RX1550 nm, single mode”. This SFP receives (RX) on a wavelength of 1550 nm and therefore cannot be used on a fiber optic connection (1000Base-BX10, customer side, converter/router) from Swisscom (for private customers; I am not aware of the corresponding options for Geschäftskunden) ( Reason: wrong reception wavelength).
See also this post: /m-p/486761#M1531 “https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Lancom-Glas Fiber-Router-%C3%BCber-Swisscom-Bluewin-m%C3%B6glich/m-p/486761#M1531 ”).

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user109 wrote:

ivesleutenegger the way you posted it doesn’t work.

here’s how it works:

OTO socket Port2-> Fiber kit from SC-> MC220L (TP-Link)-> Ethernet cable (1Gbit (min Kat5e))-> MC220L (TP-Link)-> Fiber kit from SC-> SFP port Internet box.

See Page 8 Manual

…

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Note: I recently wrote a comment BCr Internet Box Standard/m-p/486762#M1532 “https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Media-Converter-gt-Ethernet-SFP-Modul-f%C3%BCr-Internet-Box-Standard/m-p/ 486762#M1532”) to a point [this one is a bit older Posts](https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Media-Converter-gt-Ethernet-SFP-Modul-f%C3%BCr-Internet-Box-Standard/ m-p/438994#M932 “https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Media-Converter-gt-Ethernet-SFP-Modul-f%C3%BCr-Internet-Box-Standard/m-p/ 438994#M932”). Two further points caught my eye. I would now like to comment on this here.

@ivesleutenegger:

The scheme [in your post](https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Media-Converter-gt-Ethernet-SFP-Modul-f%C3%BCr-Internet -Box standard/m-p/438986#M929 “https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Media-Converter-gt-Ethernet-SFP-Modul-f%C3%BCr-Internet-Box-Standard/m-p/ 438986#M929”) corresponds to this Swisscom proposal “Fiber optic connection and distribution cabinet (self-installation for technically experienced customers)”. Some comments on this proposal can be found here: #M1519 “https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Glasfibrillan-einer-Internet-Box-mittels-Media-Konverter/m-p/484604#M1519”).

user109:

I think your sketch is not complete and therefore cannot work like this. The specified page 8 of the MC220L manual describes the case with two TP-Link MC220L media converters and a fiber optic cable between the two MC220L. You mention “SC fiber kit” twice. If the two MC220Ls are to be connected with a LAN cable, a total of three SFP fiber optic modules would be required. The setup with two media converters is not entirely trivial. I tried to show a possible structure in the following diagram (the resolution of the JPG image shown is quite low, via this link a PDF file with better quality can be downloaded):

Scheme with 2 media converters

I haven’t tested the scheme in practice, it’s just a sketch. For the specified scheme, two SFPs of type 1000Base-BX10-U and one SFP of type 1000Base-BX10-D are required. The diagram shows two variants for the “connection” between the Internet box and the corresponding media converter MC220L. It is important that an SFP 1000Base-BX10-D is used together with an SFP 1000Base-BX10-U. Additional note: Here you are of course not bound to the send/receive wavelengths of Swisscom’s FTTH (i.e. a combination of SFPs with, for example, “1550 nm RX/1310 nm TX” and “1550 nm TX/1310 nm RX” would also work ). Examples of an SFP module of type 1000Base-BX10-U:

• Siligence, SGA 441SFPO-1Gb, 1.25G T1310nm/R1490nm 10km DDM, OST-1000BX-S34-10DI
  This SFP is currently delivered by Swisscom with the Internet-Box 2, so it naturally works in the Internet-Box 2 (as well as IB Standard, IB Plus) and, according to tests, also in the media converter MC220L.

• Based on the data provided on www.flexoptix.net, the following SFP could also work in the scheme (however, I don’t know anything further about its compatibility with the Internet box and MC220L media converter known):
  [1G SFP BIDI LX LC 10 km, TX1310 / RX1490 nm, Singlemode](https://www.flexoptix.net/en/transceiver/1-gigabit-bidi-sfp-transceiver-10km-tx-1310nm-rx-1490nm .html “https://www.flexoptix.net/en/transceiver/1-gigabit-bidi-sfp-transceiver-10km-tx-1310nm-rx-1490nm.html”)
  Note: When ordering a Flexoptix SFP module, you can/should select a configuration method. I don’t know whether this choice is relevant for use in the Internet-Box or the MC220L. Guess for a sensible configuration (compatibility): Cisco Systems, GLC-BX-U. Example of a 1000Base-BX10-D SFP module:

• Based on the data provided on www.flexoptix.net, the following SFP could work in the scheme (however, I am not aware of anything else regarding its compatibility with Internet Box and MC220L media converter ):
  [1G SFP BIDI LX LC 10 km, TX1490 / RX1310 nm, Singlemode](https://www.flexoptix.net/en/transceiver/sfp-bidi-transceiver-1-gigabit-sm-tx1490nm-rx1310nm-10km-13db -ddm-dom.html “https://www.flexoptix.net/en/transceiver/sfp-bidi-transceiver-1-gigabit-sm-tx1490nm-rx1310nm-10km-13db-ddm-dom.html”)
  Note: See above. Guess for a sensible configuration (compatibility): Cisco Systems, GLC-BX-D. Another possible complication that should be checked as a precaution before implementing this setup: The length of the fiber optic cable between the Internet box and the MC220L media converter is very short (i.e. it only causes deep attenuation). The transmission power of the SFPs involved must not exceed the maximum reception power of the corresponding partner SFP (according to the specification) (danger of overload, possibly damage to the optics), otherwise a fiber optic attenuator must also be used.

Hello

CAT5e is outdated and a bottleneck for a fiber optic connection.

One can now philosophize about whether anyone ever needs this bandwidth.

The fact is that no network in 2017 still uses CAT5e (Fast Ethernet). Or house installations with <= CAT5e are exchanged for CAT6a (in some cases even CAT7).

Greetings

RAL9004

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@RAL9004 wrote:

… CAT5e is outdated and a bottleneck for a fiber optic connection….

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That is only partly true.

The designation Cat 5e is according to the relevant standard is actually outdated: "… The introduction of 1000BASE-T (Gigabit Ethernet) and the associated signal transmission over all eight wires, instead of the previous 10BASE-T and 100BASE-T only over four wires made it necessary for additional values ​​such as… etc. to be taken into account. Components that met the new requirements and were therefore Gigabit Ethernet compatible were considered until the ISO11801 and EN50173 standards were revised Cat 5e marked. Cat 5e cables are backwards compatible with conventional Cat 5 cables. With the new version of the standards in 2002/2003, Cat 5e disappeared Since then it has only been called Cat 5. Installations that were carried out before 2002 and corresponded to the then Cat 5 do not necessarily have to be Gigabit Ethernet compatible and the cables should be checked for this with special measuring devices before use.

But it is completely clear that Cat 5e cabling (according to the original standard) and Cat 5 cabling (according to the standard after 2003) are fully Gigabit Ethernet compatible (and therefore not just Fast Ethernet compatible). This means that such cabling is currently not a bottleneck for a fiber optic connection (with 1 GBit/s). The prerequisite, of course, is that all four twisted pairs (i.e. all eight wires) of the cable are connected to the pins of the RJ45 plugs/sockets in accordance with the standard (i.e. no “split installation”).

If someone is planning house cabling today, it may make sense to choose Cat x cabling with x > 5 (in order to be prepared for the future with 10 GBit/s etc.). But I wouldn’t replace existing (working) Cat 5 cabling (according to the standard after 2003).

Quote rokx:

I came across this slightly older [post](https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Media-Converter-gt-Ethernet-SFP-Modul-f%C3%BCr -Internet Box Standard/m-p/438994#M932 “https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Media-Converter-gt-Ethernet-SFP-Modul-f%C3%BCr-Internet-Box-Standard/m-p/ 438994#M932”). Maybe it will find more readers in the future. I would therefore like to make the following (corrective) comments:

The description for the [SFP from Flexoptix](https://www.flexoptix.net/en/sfp-bidi-transceiver-1-gigabit-sm-tx1310nm-rx1550nm-10km-12db-ddm-dom. mentioned in user109’s post .html According to the link provided, “https://www.flexoptix.net/en/sfp-bidi-transceiver-1-gigabit-sm-tx1310nm-rx1550nm-10km-12db-ddm-dom.html”) is: “1G SFP BIDI LX LC 10 km, TX1310 / RX1550 nm, single mode”. This SFP receives (RX) on a wavelength of 1550 nm and therefore cannot be used on a fiber optic connection (1000Base-BX10, customer side, converter/router) from Swisscom (for private customers; I am not aware of the corresponding options for Geschäftskunden) ( Reason: wrong reception wavelength).
See also this post: /m-p/486761#M1531 “https://community.swisscom.ch/t5/Diskussionen-%C3%BCber-das-Thema/Lancom-Glas Fiber-Router-%C3%BCber-Swisscom-Bluewin-m%C3%B6glich/m-p/486761#M1531 ”).

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@rokx the wavelengths have changed. At 100 Mbps you have been:

SFP (TX/RX=1310/1550nm, SM, DDM, 15 dB, 20km, LC/PC connector).

and in 2015 this was still true.

See post:

[https://community.swisscom.ch/t5/Archiv-Internet/FTTH-Centro-Grande-Router-mit-Cisco-Router-replace-Just-4-Fun/m-p/169532] (https://community.swisscom.ch/t5/Archiv-Internet/FTTH-Centro-Grande-Router-mit-Cisco-Router-replace-Just-4-Fun/m-p/169532)

Frankly, the copper cable category would cause me the least concern in this adventurous conglomerate of converters and adapters…

@rokx

According to the current definition, we only speak of CAT5 and mean CAT5e.

Source:

https://www.elektronik-kompendium.de/sites/net/0603191.htm

See section “Category 5 / Category 5 (Class D) twisted pair cables”

I also know the details that you mention regarding Gigabit Ethernet and CAT5e from the Wikipedia article

[https://de.wikipedia.org/wiki/Twisted-Pair-Kabel#Kategorie.C2.A05.2F5e](https://de.wikipedia.org/wiki/Twisted-Pair-Kabel#Kategorie.C2. A05.2F5e)

Split house wiring has been unacceptable to me since around 2015. I.e. a conceptual error. I also don’t buy a car with a 6 cylinder engine and leave 3 cylinders switched off.

Should I live with Fast Ethernet just so that I have two RJ45 ports in the wall at one output? In the age of UHD, etc. Most of the time you have to have a third or fourth Ethernet anyway. This means that a switch is not necessary.

Greetings

RAL9004

In my opinion, split house cabling has been a no-go for more than 10 years, but even in 2017 they are still being built diligently and are even touted as an advantage to the unsuspecting home buyer (double the number of sockets…).

Anyway, in addition to the maximum speed of “only” 100 Mbps, split technology can cause even more insidious problems that you don’t notice at first glance.

For example, if a TV-Box, which only has a 100 Mbps port, is connected via split installation to an IB with Gbps ports, then in the worst case scenario the automatic negotiation of speed and duplex may not work properly and the speed will settle at an even lower speed or half -Duplex connection, which can lead to visible interference on the TV.