Straight and crossover cable color code
UTP has 4 twisted pairs of wires, we’ll now look at the pairs to see what colour codes they have:
As you can see in the picture above, the 4 pairs are labeled. Pairs 2 & 3 are used for normal 10/100Mbit networks, while Pairs 1 & 4 are reserved. In Gigabit Ethernet, all 4 pairs are used.
UTP CAT5, 5e & 6 cable is the most common type of UTP around the world ! It’s flexible, easy to install and very reliable when wired properly.
There are two wiring standards for these cables, called “T568A” (also called “EIA”) and “T568B” (also called “AT&T” and “258A”). They differ only in connection sequence – that is, which color is on which pin, not in the definition of what electrical signal is on a particular color.
Pin Number Designations for T568B-T568B
Note that the odd pin numbers are always the white with stripe color (1,3,5,7). The wires connect to RJ-45 8-pin connectors as shown below:
Color Codes for T568B
Pin????? Color? Pair Name
1??? white/orange (pair 2)? TxData +
2??? orange (pair 2)?????????? TxData –
3??? white/green (pair 3)??? RecvData+
4??? blue (pair 1)
5??? white/blue (pair 1)
6??? green (pair 3)???????????? RecvData-
7??? white/brown (pair 4)
8??? brown (pair 4)
Pin Number Designations for T568A
The T568A specification reverses the orange and green connections so that pairs 1 and 2 are on the centre 4 pins, which makes it more compatible with the telecom voice connections. (Note that in the RJ-11 plug at the top, pairs 1 and 2 are on the centre 4 pins.) T568A goes
Very Good
I need Training for CCNA
You can WhatsApp us +918130537300
Very Good
I need Training for CCNA
You can WhatsApp us +918130537300
CCNA online Training
CCNP Online Training
CCNP Online course
CCIE Online Training
Best CCNA Training
CCNA Training Chandigarh
CCNA online Training
CCNP Online Training
CCNP Online course
CCIE Online Training
Best CCNA Training
CCNA Training Chandigarh
Yes it’s good information
Yes it’s good information
Knowledgeful infos ….
Thnx 4 write this post …
Helpful 4 me
Knowledgeful infos ….
Thnx 4 write this post …
Helpful 4 me
Easy to learn but the image quitely blurred. But how can i know which cable i’m using? thanks!
Easy to learn but the image quitely blurred. But how can i know which cable i’m using? thanks!