Reddit reviews Gigabit Ethernet Multi-Mode LC Fiber Media Converter (SFP SX Transceiver Included), up to 550M, 10/100/1000Base-Tx to 1000Base-SX
We found 7 Reddit comments about Gigabit Ethernet Multi-Mode LC Fiber Media Converter (SFP SX Transceiver Included), up to 550M, 10/100/1000Base-Tx to 1000Base-SX. Here are the top ones, ranked by their Reddit score.
Optical Port: Gigabit Ethernet, 850nm wavelength, Connect Multimode Dual LC Fiber Cable;RJ45 Port: 10M/100M/1000M, Full Duplex or Half Duplex, Connect UTP CAT5 Cable, Supports MDI/MDI-X auto crossover;Status LED's for TX, FX LINK/ACT, POWER, FDX to easily monitor network status, complies with IEEE IEEE 802.3/802.3u/802.3z/802.3ab;Supports jumbo frame size 9K bytes; Supports working temperature range from 0°C to 60°C; Support wide power supply voltage (100V-240V), operating voltage is 5VDC /1.0A;What You Get: 1pcs Gigabit Ethernet SFP Slot media converters; 1pcs SFP SX transceiver; 1pcs Power Supply; 1-year Warranty, 30 Days Free-returned, Free Lifelong Technology Support.
Oh.
Yeah, you're fucked.How about optical isolation? https://www.amazon.com/Converter-SFP-Transceiver-550M-ipolex/dp/B0716XT1QT
Two of those and a duplex LC multimode fiber patch cord make for lovely isolation.
Put your modem on one side, and your router on the other. Put some physical distance (a few feet is plenty) between them.
I would bury fiber in that PEX tube of yours.
When you're using something galvanic (like cat5/cat6) to connect two different buildings with two different grounds, you have the potential (heh) to run into trouble with something called a ground loop. I'm not sure I currently have the eloquence to explain it, but best case it would reduce your reliability, worst case it'll cause a fire. This is why national fire code requires sub panels to be grounded to the main panel, NOT to its own ground rod.
Fiber optics don't carry electricity, just pulses of light, so this isn't a concern.
As far as what to get, at 125ft, you can just get a 60M multimode fiber patch cable to run through the PEX like this one: https://www.amazon.com/FiberCablesDirect-Multimode-196-85ft-0-5M-300M-100gbase/dp/B01I2EJO98
...and on each end get a multimode gigabit converter like this one:
https://www.amazon.com/Converter-SFP-Transceiver-550M-ipolex/dp/B0716XT1QT
The important bit is both transceivers should have the same wavelength (850nm, in this case), the same speed (gigabit), and a connector type that matches the fiber patch cable (LC).
Other words you'll see...
Core size (62.5/125 vs 50/125) doesn't matter if you're just using one cable (but 50/125 is newer/better).
OM1/OM2/OM3/etc... doesn't matter at 1gbit, but bigger numbers will give you future potential of 100gbit... which you will never ever need.
Plenum is the cladding type. When a plenum cable burns it doesn't outgas harmful chemicals.
Duplex means two fibers next to each other, one send one receive. You want this.
Why not wireless? Because this is cheaper and 10x more reliable.
I disagree on the complexity issue, because he could use something as simple as a fiber-to-copper media converter on both sides to switches on both sides; no fancy switches or NICs.
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I have no idea how reliable the quality is for this particular product, but it come with it's own SFP and is only $40:
https://www.amazon.com/Converter-SFP-Transceiver-550M-ipolex/dp/B0716XT1QT/ref=pd_lpo_vtph_147_bs_t_1?_encoding=UTF8&psc=1&refRID=KKRXAXD5CG72T9PEEH0D
If they provide you an SFP/SFP+ plug they've probably whitelisted it on their end.
You can get this: https://www.amazon.com/Converter-SFP-Transceiver-550M-ipolex/dp/B0716XT1QT/ref=sr_1_8?keywords=sfp+to+rj45&qid=1558976154&s=electronics&sr=1-8
and convert that to a 1gb copper cable if you already have your own router. If not, getting one with an SFP port would be your best bet.
You don't need converters with SFP modules. Converters with built in optics like this one will work in this case. Or you can get one with an SFP incuded.
The ones with built in optic usually use SC connectors, that are a bit bigger than LC. So if you need to thread a patch cable through small opening, through a wall for example, LC connectors might be a better option.
You also need to keep in mind if you are using single mode or multi mode optics, as they will need different types of cable. Multi Mode is typically cheaper (although the difference is not that big for 1Gbit optics) but has a shorter range. the range for MM is ~500 meters, so it is good enough in this case.
If you don’t have space for an Ethernet cable is under the door, then Fiber cables are pretty thin. It ain’t pretty but I’ve used gaffers (white is preferable, colored kinds can stain if they get wet) tape and blue painters tape to get them by doors before. Especially easy if the door has some sort of foam “weather” seal (indoors it’s generally used for dampening noise). The trick is to orient it nearly parallel with the crevice you are trying to get it through, rather than perpendicular.
Then you could use 2 of these
https://www.amazon.com/dp/B0716XT1QT
Or just one, and an additional 1g sfp (not 10g sfp+) transceiver module and plug it into a mellanox card from eBay (connectx3 is well supported and cheap)
Just test the gaffers/painters tape after a few months to make sure it won’t pull away weakpaint
Buying a MT-RJ or LC fiber patch cable is easy.
Then you just need an LC-RJ45 transceiver.
https://www.amazon.com/5M-Gigabit-Duplex-Fiber-Optic/dp/B007OXJ0HK/
I think this one will work:
https://www.amazon.com/Converter-SFP-Transceiver-550M-ipolex/dp/B0716XT1QT/
I'd need to know exactly what CIsco switch or line card you are working with to be confident.