In article ,
Eric wrote:

RJ-45 is for network (ie ethernet), RJ-11 is for telephones. You are not
going to hook your telephone to the network. You are going to hook your
voip phone adapter or voip router to the network ( via an RJ-45 connector )
and then hook your telephone to the voip adapters' RJ-11 telephone port.


Incorrect.

RJ-45 is for a dedicated single pair data circuit, and has nothing to do
with ethernet.

The connectors themselves do not have any RJ designations until they are
wired for a specific telephone application, as originally defined in
47 CFR 68.502.

The only exceptions might be jacks for alarm applications complying with
RJ-31X or RJ-38X, which have shorting bars, making them difficult to use
for other applications.

Ethernet and Token Ring do not have any RJ designation.




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