How to Choose the Right PoE Switch?

I can remember the other one that could be picked up.

PoE switches: Unlike ordinary switches, PoE switches have PoE power supply functions in addition to the functions of ordinary switches. With this feature, PoE switches can power network devices such as webcams, wireless APs, and networks**, eliminating the need for cumbersome power cabling.

Advantages of PoE switches in use.

1. Advanced technology. Using a single network cable to transmit data and power at the same time is more advanced than using multiple lines.

2. Convenient wiring. Due to the convenient wiring, no additional power wiring is required, which can greatly save investment costs in medium and large monitoring systems.

3. Cost saving. From an engineering point of view, you can hire less construction personnel, buy less wires and the like, reduce labor costs and material costs, shorten the project duration, and simplify the difficulty of later maintenance.

4. High safety, because there is no direct strong current power supply and strong current circuit, the safety of use is improved.

How to Choose the Right PoE Switch? Note the following:

1. Physical port.

First of all, it is necessary to determine the number of switch interfaces, the number of optical fiber ports, the network management, and the rate (10, 100, 1000M). At present, the interface on the market is mainly the port. The optical fiber port is generally one or two ports, and the optical port must pay attention to whether it is 100 Gigabit or Gigabit.

PoE switches are generally used to connect to powered terminals and be used as access switches, and the number of PoE power supply ports supported by the switch is considered based on the number of powered terminal devices. For example, if the AP port is Gigabit and uses 11AC or dual band, you can consider using Gigabit access.

2. Power supply parameters.

Select the appropriate switch based on the power supply protocol (such as non-standard PoE) supported by the powered terminal (AP or IP camera), and the PoE power supply protocol supported by the switch must be the same as that of the powered terminal. Users should pay attention to whether the product is powered by 48V standard PoE when choosing, 12 48V fake PoE switches cannot automatically distinguish the voltage required by the receiving end, and it is easy to burn out the flashlight equipment, which poses a safety threat to life and property. The POE switches of Tianbo equipment are powered by 48V standard PoE power, so users can use them with confidence.

3. Wiring scheme.

You can compare the cost of local power wiring with the cost of power supply from PoE switches. At present, the power supply distance of PoE switches is less than 100 meters. There are no layout restrictions, which can save about 50% of the overall cost.

Wiring within 100 meters, you can flexibly expand the network without being restricted by the layout of power lines, hang wireless AP, webcam and other terminal equipment on the wall or ceiling, flexible expansion, easy wiring, beautiful and generous.

4. Pre-sales and after-sales technical support. Fengrunda hereby reminds users to choose reliable brands, the quality of PoE switches in the domestic market is uneven, choose reliable, qualified merchants in order to obtain professional pre-sales and after-sales service.

First, the subject is different.

1. PoE switch: a switch that supports Power over Ethernet.

2. Switch: It is a kind of network equipment used for electrical (optical) signals.

Second, the characteristics are different.

1. PoE switch: In the case of the existing Ethernet cabling infrastructure without any changes, it can transmit data signals for some IP-based terminals (such as IP** stool vending machines, wireless LAN access point APs, network cameras, etc.), and can also provide DC technology for such equipment.

2. Switch: It can provide an exclusive electrical signal path for any two network nodes that are connected to the switch. The two ends of the communication need to transmit information, and the information to be transmitted is sent to the corresponding router that meets the required standards through equipment or manual.

Third, the advantages are different.

1. PoE switch: the latest standard specification of data and electrical power transmission at the same time using the existing standard Ethernet transmission cable, and maintains the compatibility with the existing Ethernet system and users. The IEEE standard is a new standard based on PoE for Power-over-Ethernet systems.

2. Switch: It has the characteristics of high cost performance, high flexibility, relative simplicity and easy implementation. Ethernet technology has become one of the most important LAN networking technologies today, and network switches have become the most popular switches.

1 PoE switches, which can be used both to power and to transmit data, usually Ethernet.

For data, PoE switches usually use 4 network cables to supply power (lines) and 4 network cables to transmit data (lines).

2. The power supply is reflected in the power supply to downstream equipment, such as power-consuming PoE cameras (often seen in surveillance), PoE wireless APs, etc.

3 PoE switches usually supply power to downstream devices, that is, devices below PoE, but not to upstream devices, such as routers, so PoE switches do not have to be used with PoE routers.

4 Of course, sometimes, even if there is a device underneath, such as an AP, can use PoE power supply.

However, according to the fire protection regulations of some buildings, the network cable must be weak current, and the strong and weak current must be strictly isolated.

5 In addition, there are also some PoE switches and routers that are integrated, that is, routing and switching all-in-one machines, and the network port of the router itself has a PoE power supply function, which can directly supply power to the outside world.

Not necessarily. The PoE switch port can be powered by a network cable, which can simplify the network chaos and lead the network attack. However, if the router does not support PoE, you can use its own power supply.

A PoE switch is a power supply switch that can be connected to a common switch.

PoE switches are widely used in large-scale LAN construction such as high-level monitoring and wireless AP coverage. With the improvement of living standards and the improvement of people's living environment, household PoE switches have gradually entered people's lives.

So, what exactly is a PoE switch, and whether the connection between the PoE switch and the ordinary switch will burn out the equipment has been bothering us, let's take a brief look at those things about the PoE switch!

The most important feature of PoE switches is that they can supply power to network devices. The power supply is about 30W, which can meet the power supply of weak current equipment below 25W, such as ** surveillance cameras, wireless coverage AP equipment, etc. The power supply method is relatively simple, and the power supply is directly transmitted through the network cable.

PoE switches with power supply functions** are slightly higher than ordinary switches, and can be configured by command letters, which is what we often call smart switches, not fool-proof switches. Nowadays, not only switches have the PoE power supply function, but also PoE routers with power supply function are more common in the family.

Let's talk about the development of PoE switches in combination with my actual work! In my work, I have been in contact with Maipu, Huawei, and Hua.

Third, Cisco's PoE power supply switch, the development of the manufacturer's PoE switch is also a process of gradual process improvement.

In the initial form of a PoE switch, the switch is separated from the power supply module, and the PoE power supply function of the switch needs to be connected to the PoE power supply module through copper wires, and the PoE power supply function is enabled in the configuration command of the switch. At that time, a large number of PoE switches of this type were used to complete the wireless Wi-Fi coverage project in the university dormitory. Because the power supply module is separated from the switch, a power supply failure occurs in the event of a power failure.

When the two devices receive a call, the startup sequence is fast and slow, and the PoE module cannot be loaded normally when the switch is started, and the power supply cannot be realized.

Manufacturers are also aware of this problem, and the POE switch launched later does not use a separate design, and directly integrates the power supply module into the switch. The PoE switch is not an independent entity in the entire network, and the upper end has access to the aggregation switch and the lower end has the requirement to access the distributed switch, and there is no problem that the switch port cannot be connected or burned.

In most cases, the power supply function of the PoE switch is not enabled by default and you need to enter the command-line mode for configuration.

The configuration commands of PoE switches from different manufacturers are slightly different, and they are usually divided into two steps:

Even if the PoE switch is enabled in power mode, it will not burn any connection ports, so if you are worried, you can turn off or not enable the PoE power supply mode.

1. Router + PoE power supply function = PoE router (generally also includes AC function) 2. Switch + PoE power supply function = PoE switch.

3. Difference: One is a router and the other is a switch.

4. Applicable environment:

PoE router is suitable for: wireless coverage within 500 square meters (home, restaurant, 4 stores......One router solution: routing, AC, and PoE power supply.

PoE switches are suitable for wireless coverage of more than 500 square meters (hotels, schools, hospitals......）

The biggest advantage of PoE network equipment is that it can use network cables to supply power to the equipment, which can facilitate the distribution of network equipment without being restricted by the inconvenient access to power supply in some areas.

It cannot be compared, and it has nothing to do with PoE.

One is a switch and the other is a router, the working layer is different, the principle and function are also different, and there is no way to compare.

The POE is for power supply, the network cable can be live, and it can be used for two purposes, a monitoring device or an AP wireless device.

It is equivalent to the handover machine, plus the power supply function, saving wiring and connecting the power cord.

There are many types of exchange machines. As you asked, zhipoe switches.

If the DAO is divided with a non-PoE switch, the PoE switch can provide transmission answers.

function, and can also provide power supply to the device at the other end of the network cable connected to the PoE switch. For example, if there is a digital surveillance camera that is not connected to a power supply, but is connected to a non-PoE switch via a network cable, the camera will not work. If the camera is not connected to the power supply, but the network cable is connected to the PoE switch, then, Bingo, the camera will work fine.

I don't know if you understand?

A PoE switch is a switch that supports power supply over network cables, which can not only realize the data transmission function of ordinary switches, but also supply power to network terminals at the same time.

The POE comes with a fiber optic module and can be connected with fiber optics. Non-POE does not have fiber modules.

It works in theory, but what are you going to do?

Even if the ordinary switch is connected to the POE switch, it does not have the power supply function, which is equivalent to supplying power to the ordinary switch, and choose the standard such as the Fengrunda POE switch as soon as possible, otherwise you will regret burning your ordinary switch.

PoE switches are divided into standard PoE and non-standard PoE

If you want to connect to a common switch, you must select a standard PoE switch.

If you choose a non-standard one, it will burn out as soon as the device is plugged in.