Cable Type Summary: BNC, RJ45 and RJ48

We know that the cable is the basis of the network, if you do not well identify the use of the cable, you will not become a qualified engineer.

The BNC cable is the copper shaft cable that we use for CCTV, which is used today as a signal input/output probe in an oscilloscope, although the appearance and the traditional cable are somewhat different, but the function is similar. It is mainly used in the network between the operator optical end machine to the router this link, is commonly known as the E1/T1 line, in the actual application, we see more is the serial port to the BNC, as the WAN and the LAN connection bridge. Of course there are RJ48 cables in this line, which is also mentioned later.

The difference between RJ48 and RJ45:

The surface difference between them is the cable male pin 1 There is a small bulge, RJ48 on the other, and RJ45 is not, in order to prevent RJ48 male insert RJ45 female head, the substantive difference is that their pins are different. As follows:

The cross-line sequence of the RJ48 is as follows:

A end: white orange orange white green blue white blue green white brown brown

B End: Blue white blue white green white orange orange green white brown brown

The cross-line sequence of the RJ45 is as follows:

A end: white orange orange white green blue white blue green white brown brown

B End: White green green white orange white brown brown orange blue white Blue

In addition to the line order, we also need to know that: RJ48 its line Order 1 2 is for receiving, 4 5 is for sending, and RJ45, 1 2 is for sending, 3 6 is for receiving. Actually we often use RJ45 to do RJ48 line order.

To mention a little is the difference between the RJ45 and the Giga-RJ45:

First, there is a difference in the transmission rate.

Two. There are 8 lines in the RJ45, but in fact only 4 are used, while the gigabit RJ45 all use 8.

Three. Since the speed is different, the expansion of physical hardware requirements are not the same, to adapt to the characteristics of support, so gigabit RJ45 cable for gigabit-capable network devices, such as gigabit NICs, gigabit switches and so on.

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Cable Type Summary: BNC, RJ45 and RJ48