1, cable transmission in the transport network is typically used when the core 4 is transmitted. So some friends in the wiring, will only take four to core transport network, while the other four used to use as a telephone line, then four lines and eight ground lines are different in a sense, although in network transmission network is responsible for transmitting a signal line 1236 only four crystal head position, as represented by the color orange, orange and white, green and white, green.
2, the position of this line is the 4-wire connection according to international network standards determined:
T568B: 1-> Orange White 2-> 3- Orange> Green White 4-> Blue 5-> 6- blue> green 7-> brown white 8-> Brown
Other 4 but it is played to reduce crosstalk and their anti-disturbance effects, in general, the effective transmission distance of the cable is 100 meters, and can maintain stable transmission.
Only four connection cable, it can be transmitted from the cable can be up to 100 meters, but may not be very stable during transmission. 4 so that the transmission wire is generally used in a network environment, a number of less demanding transfer, or temporary transmission.
4 only core cable connection is not gigabit transmission network, Gigabit Ethernet is transmitted together eight core function.
Then 4-core and 8-core there is a difference is to do crystal head when the 4-core is connected according to T568B standard 1236 only four positions. And 8 is a core in accordance with standard T568B direct access to the eight core .
