Replace media converter with PCIe card

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ketiljo

New Member
Sep 7, 2022
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I'm currently using a media converter with the SPF module that came with my router from the ISP, to ethernet that's plugged into a Pfsense router. I'd like to replace this with a PCIe card. Most seems to be 10G capable, which I don't need and the power consumption would probably be higher. What low power card could I use, which is not too picky about the module?
 

sko

Active Member
Jun 11, 2021
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215
43
If your switch has free SFP ports just connect your uplink directly to the switch and put the port connected to the uplink of your router into the same vlan as the SFP port. Also disable anything that doesn't belong on an uplink port, e.g. STP, VTP, CDP, LLDP etc... basically anything that babbles constantly on that link and won't ever get an answer from your ISPs equipment (or might even upset it..)
 

ketiljo

New Member
Sep 7, 2022
20
7
3
So far, that didn't work. I have a HP 1820 switch that doesn't seem to like the SFP module that came with the modem, the connect LED is just blinking slowly. I've ordered a HPE compatible tranceiver from fs.com.
 

sko

Active Member
Jun 11, 2021
357
215
43
Is that actually a "standard" transceiver for an active optical line?
Usually you need a PON transceiver as almost all ISPs cheap out on their fiber edge networks for private customers and connect end users over a single fiber via GPON and TDM...

Best giveaway (apart from the single fiber instead of 2) is an asymetric bandwidth for the link. Also what you described as a media converter might actually be your ONT that often does some additional stuff (VLAN encapsulation/Q-in-Q and separation of voice/data) and is configured by your ISP.
 

ketiljo

New Member
Sep 7, 2022
20
7
3
I believe it is a standard tranceiver. I took it out of the modem I got from the ISP, put it into a mediaconverter and plugged the ethernet cable into the router. Worked right away, with the WAN side set to DHCP and no VLAN.
I have two fibers comming from the ISP. One for internet, apparently with no VLAN, and a separate for TV, RF over filber. The fiber is just plugged into a metal box with power and an F-connector. I don't have TV from my ISP so I just removed the whole router assebly and coiled the fibers into a termination boks with a SC to SC adapter so I can run a patch cord to the tranceiver.
The reason for the original question was that I'm trying to minimze the number of boxes. If I can plug the tranceiver into either my router or the switch, that's one box less. I think the reason for it not towork is because the tranceiver isn't coded to HPE.

Looks like this BTW:
tranceiver.jpg

FS.com told me that this should work: https://www.fs.com/de-en/products/39162.html But with an SC to LC patch cable instead.