[BC] Radio s computerized future?

Robert Meuser Robertm
Thu Feb 16 14:31:29 CST 2006


WFIFeng at aol.com wrote:

>
>The only thing I find a little puzzling, is the choice of RJ45 jacks for the 
>analog I/O on the rack unit... I'd think XLR would be better... but then, I'm 
>just a "horse & buggy" kind'a guy, who's still learning all this newfangled 
>stuff. ;)
>  
>
Beside the reasons already given, the RJ 45 is a good candidate for even 
analog stereo audio. You have 4 twisted pairs with a very high CMRR 
capability. Any system desinged to pass for 100 b/t certainly can handle 
audio.

I started using RJ-45 for club remote kits over 10 years ago. Everything 
going from the kit to the outside world was RJ.

We had clean and dirty feeds going from the club's mixer to our system 
and  A return feed from the station to the mixer. Then there was the 
ISDN line.

This was all wired with two dual RJ 45 wallmount boxes at the broadcast 
position. Each jack was a different color and there was a correspong 
colored RJ 45 cable. The appropriate RJ 45s jacks in the kit were color 
coded as well. Set up was simply match red to red with a red cable blue 
to blue, etc.

This allowed the guys who did the broadcast to be able to show up 5 
minutes before air time, mostly smashed already and get on the air.

Later Radio Systems came out with their RJ-45 studio hub system.. RJ 45s 
and Cat 5 (or 6) is a great way to keep costs down without loosing quality.

R




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