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Old 16-12-2005, 18:59   #11
rdhw
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Join Date: Oct 2003
Location: Cambridge
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Re: What cable between box and modem?

Quote:
Originally Posted by MacUser
ethernet cable plugs. What are they called - HC45?
RJ45, with the twisted pairs in UTP Cat 5 connected as follows:

Pins (1,2) orange pair
Pins (3,6) green pair
Pins (4,5) blue pair
Pins (7,8) brown pair

The colours are conventional, not critical, but the assignment of pins to pairs does matter for impedance matching. See http://www.incentre.net/incentre/frame/ethernet.html for the pictures.
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