connecting two RJ45 connectors to same port

[Steve]

I need to have an RJ45 connector at each end of my board but hopefully
going to the same ethernet transceiver (LXT970A). Will reflections
make this not work? The board will be 350mm in length. Will I have to
have a transceiver chip at each end of the board?

Steve.

 

[Ken Taylor]

I need to have an RJ45 connector at each end of my board but hopefully
going to the same ethernet transceiver (LXT970A). Will reflections
make this not work? The board will be 350mm in length. Will I have to
have a transceiver chip at each end of the board?

Steve.

It will work, but there may be limitations on speed/throughput. If you can
live with some collisions under heavy traffic, go for it.

Ken

 

[Pawel Stobinski]

I need to have an RJ45 connector at each end of my board but hopefully
going to the same ethernet transceiver (LXT970A). Will reflections
make this not work?

You mightn't notice that, but it depends on max. transfer speed. In worst
case, you will not have full 100Mbit (or 10).

The board will be 350mm in length. Will I have to
have a transceiver chip at each end of the board?

You mean connecting two sockets to one transceiver? If so, then why need you
two transceivers?

 

[Watson A.Name - Watt Sun]

I need to have an RJ45 connector at each end of my board but hopefully
going to the same ethernet transceiver (LXT970A). Will reflections
make this not work? The board will be 350mm in length. Will I have to
have a transceiver chip at each end of the board?

Each ethernet port is terminaed with 100 ohms, so you can connect only
one cable to it. So yes, you need another port for two cables.

Steve.

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