Preface
Hello everyone, I am Mr. Lin. network cable is the most commonly used signal transmission cable in weak current projects and one of the most commonly used cables in life. What are its uses? Let’s learn about it together!
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The first type: his old skills! Network cable!
But one network cable can be used as two network cables, and the effect is not discounted~
I believe that people who understand it know 1236 each, and 4578 connect 1236 as one.
Because the 12 of the network cable is positive and negative for the output, 36 is positive and negative for the input, 4578 is just reserved for use for the phone! The same goes for
as a module, usually only 1236 passes are fine! The network cable of ordinary regular manufacturers is fine~ But I would like to remind you that a network of less than 100 megabytes is fine, but a gigabyte network must be fully connected with 8 network cables, and even if one is not connected, it is impossible.
network cable 1236 has a prerequisite, beware of garbage network cables. Some bad network cable manufacturers will have different textures from 1236.
The second type: use as a telephone cable (very common, but a bit wasteful)
Any two of the 8 network cables can be used as telephone cables, but the most commonly used one is a brown, white and brown network cable, which is integrated with the telephone cable!
The third type: alternative video line
with simulation monitoring, commonly used 1 drag 4, up to 1 drag 7!
simulated camera videos are usually transmitted using video cables, but in fact, the network cable has the same effect, and the network cable can be dragged by 1 or 4 or even 1 to 7~
However, one thing to note is the choice of network cables. If the distance is closer, you can usually choose an indoor network cable.
But if the distance is relatively far, such as 120 meters, 200~300 meters, it is necessary to use pure copper outdoor use.
We usually use the link line dedicated to China Unicom for a long distance! 1 drag 4, various provinces!
only needs to peel out two of the network cables (such as orange, white and orange) and connect them to the transmitter. One transmitter connects to the camera and the other connects to the recorder .
Note: I usually use the above 1 drag 4 in construction, and as for 1 drag 7, it is a common ground wire. The video head has two strands, which are similar to the coaxial cable (cable TV cable). Connect the outer shielding wires of the 7 video heads to the same wire on the network cable, and then connect the center wires of the 7 video heads to the other 7 wires of the network cable respectively.
The fourth type: with high-definition monitoring, its special purpose!
million high-definition cameras are all brought with them using network cables. Of course, optical fiber is required for long distances. One network cable with a camera, or one with two, both of which are made into 1236! The visual effect is the same!
The fifth type: use it as a power cord!
is used less often, usually not. But it is indeed feasible!
During a monitoring construction, the power cords I brought were indeed not enough, so it would be unrealistic to get them back! Anyway, the network cable is also pure copper, so two of them were used as power cords. It's been a year, and no malfunction has been seen. However, the connector must be handled safely if used!
Note: If it is not an emergency, it is recommended not to take it.Even if you take it, be sure to handle the interface well! And it is best to mark it, otherwise if someone repairs it in the future, you may be electrocuted if you don’t know!
The sixth type: use it as an audio cable!
Sometimes when installing monitoring, customers will need to collect and synchronize the recording!
At this time, if there is no audio cable on hand, you can use a network cable instead, and the effect will definitely not be worse than the audio cable! If you don’t use a good network cable, you can achieve the effect in general!
The seventh type: it can replace the USB cable!
network cable instead of USB cable, the quality is better than the ordinary USB extension cable !
Specific wiring method, you can search on Baidu for " network cable to make USB extension cable"'The first one is!
The eighth type: do jumper soldering!
When welding circuit boards, it can often be used to do jumper soldering
The ninth type: replace VGA line to transmit VGA image information!
VGA pin definition: 15-pin VGA pin definition: 1PIN — “red” of analog signal 2PIN — “green” of analog signal 3PIN — “blue” of analog signal 4PIN — Address code 5PIN — N/C6PIN — Analog “red” ground terminal 7PIN — Analog “green” ground terminal 8PIN — Analog “blue” ground terminal 9PIN — Alternate 10PIN — Digital ground terminal 11PIN — Address code 12PIN — Address code 13PIN — Row field signal 14PIN — Vertical row field signal 15PIN — Ground terminal (shielding layer)
The tenth type: used to connect serial port wire!
only need to connect three wire heads, it is just for.
. The main purpose is to use it in The serial port is used to transmit data on the electronic display screen. Because the ready-made serial port lines are generally shorter.
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