Question Newbie needs help with RJ45 to fiber optics and back to RJ45

[danroberto]

Dear friends,
My router is working great and PCs are connected to the Internet just fine.

I have a fiber optics cable running through my wall. I'm trying to connect a computer using it. See image:

RJ45 from the router to a Fiber transceiver (number 1 in the photo), and on the other side, the same thing.

What am I doing wrong? I know the Fiber cable is ok.

Any help will be greatly appreciated!

 

[stuff and nonesense]

Dear friends,
My router is working great and PCs are connected to the Internet just fine.

I have a fiber optics cable running through my wall. I'm trying to connect a computer using it. See image:

RJ45 from the router to a Fiber transceiver (number 1 in the photo), and on the other side, the same thing.

What am I doing wrong? I know the Fiber cable is ok.

Any help will be greatly appreciated!

Have you got part numbers for the fibre transceivers?

 

[danroberto]

Have you got part numbers for the fibre transceivers?

Thank you,

Here's a link to it:

https://www.aliexpress.com/item/1005006349857144.html

 

[stuff and nonesense]

The transceivers have labels for tx and rx have you got them connected such that end A tx goes to end B rx and vice versa? (Maybe misleading without more info it’s hard to help)
Have you got a manual?

 

[palladin9479]

Thank you,

Here's a link to it:

https://www.aliexpress.com/item/1005006349857144.html

What kind of fibre cable are you using? Each side should have two plugs, the TX on one side goes to the RX on the other and vice-versa. You also have single-mode and multi-mode fiber, they are not interchangeable so make sure it's the right type for those media converters.

 

[danroberto]

The transceivers have labels for tx and rx have you got them connected such that end A tx goes to end B rx and vice versa? (Maybe misleading without more info it’s hard to help)
Have you got a manual?

Thank you again @stuff and nonesense .

In both transceivers the RX side is sealed and unused. You can see it in one of the photos in the link I posted above. Only onefull-duplex port,

Is that the problem? Do I need one to be connected to RX?

The item said that it is a "Transceiver" with "Auto-Negotiation", "One 1.25Gbps full-duplex fiber port and one 1000M Ethernet port." so it should work, no?

 

[stuff and nonesense]

Dual frequency, full duplex. I think Rx goes unused (please correct me)

Is there a manual or a link to the manufacturer web page?

 

[danroberto]

I don't have a manual. I will try contacting the seller.

 

[bill001g]

What kind if fiber did you buy. You need to have single mode fiber for the frequencies the converter is using. Many times this is a has a yellow color on the fiber.

You also have to be very careful with fiber it is extremely easy to break. You wrap it around your finger a couple times and it will cause cracks in the glass core.