Question What the heck are these guys?

[Crag_Hack]

Hi I ran into these devices the other day at a client's house with a Uverse Internet connection and these guys I believe providing a signal to a Uverse tv box. Any idea what they are? No labels/company names/model #s or anything. I assume there's no such thing as an ethernet splitter.... There is one on each end of the ethernet cable. Thanks!

 

[cruisetung]

One ethernet cable (8 internal wires) to two plugs, so probably RJ11 phone plug splitter?

 

[Math Geek]

They remind me of the old dsl filters. One output is phone and the other is Internet to pc.

But the outputs look the same so prob not correct

 

[Crag_Hack]

Those guys are RJ45 jacks. Puzzling ain't it.

 

[kanewolf]

Those guys are RJ45 jacks. Puzzling ain't it.

Not really. That is a splitter that allows two ethernet networks to be split into a pair of 100Mbit (4 wire) jacks, traverse across a single 8 wire cat5 and then be split back out at the other end. 100-T only requires 4 wires and 1000-T requires all 8. This is done to allow two 100-T cameras to run through a single wall cable, for example.

 

[Crag_Hack]

@kanewolf Eureka!

 

[Crag_Hack]

I wonder why it was there in the first place... I might have to inquire.

 

[cruisetung]

Not really. That is a splitter that allows two ethernet networks to be split into a pair of 100Mbit (4 wire) jacks, traverse across a single 8 wire cat5 and then be split back out at the other end. 100-T only requires 4 wires and 1000-T requires all 8. This is done to allow two 100-T cameras to run through a single wall cable, for example.

Makes sense. 👍 One 4K video stream only requires 30Mbps.