Breadfan
08-17-01, 09:09 AM
I recently had trouble networking an HP 4100TN network printer. Turns out the problem was how I crimped the lines...they wires weren't in correct order.
I crimped it:
White orange
Orange
White blue
blue
white green
green
white brown
brown
I was then told that the correct order was:
white orange
orange
white green
blue
white blue
green
white brown
brown.
I recrimped them in this order and the printer worked fine.
However it raised a few questions. The cables are all bunched together in the line, so how can there be crosstalk one way, but no cross talk with a different order? One would expect that if you used the same order on each side, you'd have continuity through the line and therefore it would. Obviously this is not the case, but can someone explain the scientific reason why this will not work and why this particular order must be used?
Also, someone else had done the otehr lines. One line is even longer than mine, and crimped in the order I was going to do it...and they all work fine. So why did the printer not work in that order but the computers do?
So I'm happy it works, but to be honest, I don't understand the science behind wiring the lines a certain way to make them work....one things that throws me off is the fact that other lines already existing in the office are NOT wired that way, yet they do work. So a lesson in network line science may be in order :)
Mike
I crimped it:
White orange
Orange
White blue
blue
white green
green
white brown
brown
I was then told that the correct order was:
white orange
orange
white green
blue
white blue
green
white brown
brown.
I recrimped them in this order and the printer worked fine.
However it raised a few questions. The cables are all bunched together in the line, so how can there be crosstalk one way, but no cross talk with a different order? One would expect that if you used the same order on each side, you'd have continuity through the line and therefore it would. Obviously this is not the case, but can someone explain the scientific reason why this will not work and why this particular order must be used?
Also, someone else had done the otehr lines. One line is even longer than mine, and crimped in the order I was going to do it...and they all work fine. So why did the printer not work in that order but the computers do?
So I'm happy it works, but to be honest, I don't understand the science behind wiring the lines a certain way to make them work....one things that throws me off is the fact that other lines already existing in the office are NOT wired that way, yet they do work. So a lesson in network line science may be in order :)
Mike