Whether the computer s network card and router should be aligned with a positive or negative wire

Industrial 4G routers are functionally defined according to their own application scenarios. Choose how many interfaces are needed, with or without wifi, with or without VPN, etc., and finally choose the local 4G network (mobile 4G, China Unicom 4G, telecom 4G).Then identify the router.

Positive line. Keep in mind this rule: the same device uses a reverse cable (e.g., a computer connects to a computer), and a different device uses a positive wire (e.g., a router connects to a computer).

Use a straight line (positive line), and use a cross line (reverse line) when two computers are directly connected

What is the positive line and the negative line???

It seems that I have only heard of line 568a, line 568b.

Here we use the 568B line.

Count the crystal head flat on the side upwards and from the left.

A: Green-White, Green, Orange-White, Blue, Blue-White, Orange, Brown-White, Brown B: Orange-White, Orange, Green-White, Blue, Blue-White, Green, Brown-White, Brown-White.

The LAN port is four 10 100 M adaptive RJ45 ports (Auto MDI MDIX), which are unbalanced in front and back.

White, orange, white, green, blue, white, blue, green, white, brown.

White, orange, white, green, blue, white, blue, green, white, brown.

It's the same at both ends.

I don't know what you mean by positive and negative? Only divided into A line and B line, I think what you are talking about is the normal way, just use the normal way, no jumper!

Teach you a little trick.

The reverse line between the equipment at the same level is the cross line, such as the router to the router, the switch to the switch, and the computer to the computer.

The positive wire used for different levels of equipment is a straight line, such as a router to a switch, a switch to a computer, and a router to a computer.

In addition, let me tell you a point, now basically any place can use the positive line, routers and routers, switches and switches, all can use positive wires, because the current network card is adaptive, through the network card chip will automatically use your positive line as a reverse line.

So in most cases you can't go wrong with a positive line, unless you run into an old NIC that isn't adaptive.

Straight-through wires are cross-wires of the same kind of equipment, and straight-through wires of different devices.

Router Layer 3 device.

Layer 2 switches.

Reverse lines are generally used to connect the same device, such as routing and routing between computers and computers; Nowadays, many of them also support straight lines, but it is recommended to use cross lines.

Positive wires are the most widely used between different devices, such as routers and computers, switches and computers, etc.

The line sequence and transmission speed generally do not matter, it depends on the maximum transmission speed supported by the network card, network cable, switch, router and WAN interface.

I think it's the same, because now it's all self-reversing, and it's all done by the interface chip, which won't burden the router's CPU.

The quality of the wire and the length of the wire have an impact.

As for crossover or pass-through, it shouldn't be a big problem, because today's routers generally have the function of automatic port flipping, which doesn't matter.

If you are interested, use the same length and model of wire to make a straight line, and compare and test it.

In order to ensure the quality of the line, it is recommended that the cable connected to the router or computer should be carried out according to the 586B standard.

The direct connection line is a network cable, one end 586A, one end 586B, you need to manually set the IP of two computers, this method is rarely used at present, mainly for computer sharing without a router.

A: Green-white, green. Orange-white.

Blue. Blue and white. Orange.

Brown and white. Brown B: Orange-white, orange.

Green and white. Blue. Blue and white.

Green. Brown and white. Brown: If you want to connect two machines without a router, you have to make a A and a B and plug them directly into the network card.

It depends on what kind of router you are. The computer network card port and the router port are the same, and in principle, a cross wire should be used. However, if you are a home router, its LAN port is a switch port, which is not the same as the computer network card, and in principle, you should use a straight line.

Most of the current devices support cross-pass-through automatic discrimination, and cross-pass-through can be used. Regardless of the crossover through line, as long as the network cable is connected, the port light is on.

Normally, they are cross-wired, but now most routers can intelligently identify the connection method, and direct connections can also be connected. But to avoid trouble, I always do crossings.

Just use the straight-through cable and you're good to go. 。

If it's the same device, cross the line.

Straight-through lines are fine, and now they all have port adaptive.

Straight-through wire, cross-wire between the same equipment, straight-through cable for different devices!