Непосредственные производители PoE коммутатор источника питания модуль общий беспроводной AP Bridge POE комбайнер разделения линии синтезатор

Описание

Use this product (separation line), do not take power from the POE switch, so as not to damage the equipment!

Product introduction:

This is a simple set of 1 type POE, namely: 1236 transmission network, 45+, 78- (can\'t conduct electricity, electric switches in the POE)

2.POE line (device):DC female: 5.5*2.1mm copper clad metal shielding net, length 18CM, crystal head with protective design

3.POE separation line (device):DC male head: 5.5*2.1mm metal coated copper shielding net, length 18CM, crystal head with protective design

4 wire and DC lines are 0.16, the number of oxygen free copper (the best line)

Cable equipment to do the line standards:Straight line, i.e. 568B; (straight line, standard 568B: both ends of the line sequence, from left to right order line:White, orange, orange, white, green, blue, white, blue, green, white, brown, brown.)

1 Why do you want to buy POE 15V power?

Because the network cable power supply will produce pressure drop, most of the AP power supply voltage of 12V, with more than 10 meters above the line voltage will drop to 12V below, to the normal operation of AP. If it is 12VPOE, it may affect the normal operation of the AP. If the voltage is too high, it will burn out the machine, so considering the right 15V voltage.

2 power supply distance:Generally speaking, pure copper cable and 12V or 15V power supply distance is 30 meters (actual distance and quality cable, power supply voltage and the voltage of electric equipment adaptation ability). The higher the voltage, the network cable quality OK, the more effective power supply distance.

For general networks is only to 1236 transmission data (Web data), 4578 idle, so many in the production of cable businesses in the production of cable are 4 is wire non pure copper wire, such as this line with POE power supply will lead to large power supply voltage drop.

II because the very fine wire, mass residuals not neat, there are individual copper clad aluminum wire, wire resistance is very large, loss is severe. The actual test results: general cable at the time of 12V 10 meter lower V. So the voltage of about 12V and a distance of 20 meters

3 how to distinguish the quality of the network:
1. Material from the husks: hand thrust about cable with skin and soft like a hollow point is a kind of relatively poor quality, quality is not bad feels are relatively full.
2 to determine the cable tension: if the elastic skin is very large, but rather poor quality, hard pull easily lead to inner core snapped.
3 depth copper core see ingredients: with scissors or wire pliers cut a short section of the line to see if the wire core appearance is copper, but the inner core is silver steel core, it is relatively poor, 1 dollars a meter. If inside the outside are yellow copper, the quality is 2-3, OK yuan a meter.
4 in addition, but also depends on the thickness of the copper core, some materials, copper core is relatively small, and some of the more rough. Ultra five types of cable to see more than a few on the line. 6 categories, 7 categories with shielding function, but also to see how the shielding layer of the network. Some of the 8 cable is wrapped in the outer sheath, and there is a network of each pair of lines are wrapped with a shield, which is the difference.

Why some people will say that a few meters of power is not enough? (mesh material is important)

In this shop owner to give us the popularity of the network cable self detection of small knowledge.

1 iron wire, the general use of a strong magnet can be checked out, this can not be used;
2. The zinc copper wire (also called brass, zinc content roughly 32%~39%, computer city general called copper), this general than wire soft, ratio of oxygen free copper hard, check the way, scraping with a blade, if the scrapings of the interior color and skin has obvious color difference, then it must be of copper and zinc and copper.
3. Oxygen free copper wire (also known as copper), the general material in this line is very soft, cut short at transverse section, color and skins, General GB in the line of five lines are the standard, usually 9 core (one of which is the root of the ground), such as of AMP. Network cable profit is not too high, so the electronic city to sell the wire will generally be the zinc copper as an oxygen free copper to sell, if only the Internet, oxygen free copper can be 180 meters, but generally only 130~150 meters of zinc and copper.
In addition, there are four copper four iron wire, typically 1236 copper, 4578 subway lines, this line can not be used for wireless bridge! Unless you will be 1236 and 4578 on, be sure to ask to buy this line, the 4578 is definitely not to buy iron.