novaman64
asked on
T1 Wiring
Hi there, I'm trying to extend T1 circuits and I need to know if Im doing it right. I'm taking it from the NIU that the phone company installs and taking it inside a building to an RJ45 Jack (568b) I know that they run on 1,2,4, and 5 but do they swap blue/white and white/blue like a normal data connection would? And could someone clear up the order of a 4 wire cable for me? The Green Red Yellow and Black What's the order in relation to the orange and blue pairs on a cat 5 cable? Thanks
If all you're doing is extending it, and it's less than 1000feet you can just make a really long (normal) straight cable with the single swapped wire.
ASKER
Its an 1100 ft run...
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ASKER
So with that being the case then what color (T1) goes to what pin number (RJ45 - 568B) jack?
Pins 1 - 8 going Left to Right (568B ATT)
O/ O G/ B B/ G Br/ Br
** Again standard straight cable.
O/ O G/ B B/ G Br/ Br
** Again standard straight cable.
EIA/TIA 568B
Assignment Pair Color - UTP Color - Old Style
+--------------- Tip Pair 2 2 White/Orange Black
| +------------- Ring Pair 2 2 Orange/White Yellow
| | +----------- Tip Pair 3 3 White/Green White
| | | +--------- Ring Pair 1 1 Blue/White Red
| | | | +------- Tip Pair 1 1 White/Blue Green
| | | | | +----- Ring Pair 3 3 Green/White Blue
| | | | | | +--- Tip Pair 4 4 White/Brown Brown
| | | | | | | +- Ring Pair 4 4 Brown/White Orange
Assignment Pair Color - UTP Color - Old Style
+--------------- Tip Pair 2 2 White/Orange Black
| +------------- Ring Pair 2 2 Orange/White Yellow
| | +----------- Tip Pair 3 3 White/Green White
| | | +--------- Ring Pair 1 1 Blue/White Red
| | | | +------- Tip Pair 1 1 White/Blue Green
| | | | | +----- Ring Pair 3 3 Green/White Blue
| | | | | | +--- Tip Pair 4 4 White/Brown Brown
| | | | | | | +- Ring Pair 4 4 Brown/White Orange
ASKER
So since the T1 one only uses 4 wires at the pole, assuming I maintain the same color codes for the 1100 ft run between the pole and the jack (black, yellow, green and red)... The black goes to the white/orange, yellow goes to orange/white, green to white/blue and red to blue/white on the jack?
Then from the jack I just use a standard cat 5 cable to the router which is only a 4 foot distance?
Then from the jack I just use a standard cat 5 cable to the router which is only a 4 foot distance?
If all you're doing is extending the cable, you don't move any pins/conductors. Just straight through.
In other words, if you're just extending the line it you just take same pin to same pin. Aside from ' standards ' it wouldn't technically matter what colors you used or if you crossed any pairs.
ASKER
partially correct, the ISP helped resolve