跳至主要内容

PoE Switch vs PoE+ Switch: How to Choose?

Power over Ethernet, or PoE, is a time-saving and money-saving technology that distributes power and data safely over an Ethernet cable to a targeted network or device. In the current market, if you take notice of switch types, you will find that there are PoE switch and also PoE+ switch. But what are their distinctions? How much do you know about them? In this article we have rounded up some knowledge to help you better understand PoE switch, PoE+ switch and their respective benefits according to different applications.

PoE vs PoE+ Technology

PoE was firstly defined in IEEE802.3af standard and upgraded to IEEE802.3at which is known as PoE+. PoE switches utilize PoE standard that can supply a maximum of 15.4 watts of DC power per port. While IEEE802.3at increases the maximum amount of power to 30 watts. However, some power will be lost over the length of cable. The minimum guaranteed power available at the PD (powered device) is 12.95 watts per port for PoE and 25.5 watts per port for PoE+.
  • Can PoE Devices Work Over PoE+ Ports, or Vice Versa?
The PoE+ standard provides support for legacy PoE devices, meaning that an IEEE802.3af powered device (PD) can operate regularly when connected to IEEE802.3at (PoE+) power sourcing equipment (PSE). But PoE+ PDs require more power than PoE PSEs can provide, PoE PSEs can only supply power to PoE PDs in consequence.
PoE vs PoE+ Technology

PoE Switch vs PoE+ Switch: What Is the Difference?

The main difference between PoE switch and PoE+ switch lies on the electrical power that each can carry or supply to the connected devices. PoE+ PSEs can provide almost twice as much power than PoE PSEs over the Cat5 cabling. The Max. power consumption of PoE switch is smaller than that of PoE+ switches. What is more, PoE+ power sourcing equipment provides 42.5 to 57 Vdc– an increased and much tightened range compared to 37 to 57 Vdc for PoE. Below is the detailed differences between PoE switch and PoE+ switch.
Attribute PoE PoE+
Standard IEEE802.3af IEEE802.3at
Max. Power to PD 12.95 Watts 25.50 Watts
Max. Power Delivered to Switch 15.40 Watts 30.00 Watts
Max. Power Consumption 130W 250W
Voltage Range to PD 37.0-57.0V 42.5-57.0V
Cabling Cat3&Cat5 Cat5

PoE Switch vs PoE+ Switch: Selection Dilemma?

Many users may run into this problem. Should I choose PoE or PoE+ switch?
  • When to Choose PoE Switch
PoE switch provides enough power for most wireless access points, such as surveillance cameras and IP phones. Therefore, if your office is equipped with PoE switch and you are not planning to add high-end systems, then you probably don’t need a PoE+ switch. PoE switch is the simple choice for those who look for an easy setup for basic networking, which uses standard copper Ethernet cables, making it as simple as setting up a regular network. In addition, the price of it is more cheaper and affordable than a PoE+ switch.
  • When to Choose PoE+ Switch
If you want to invest in modern and advanced technological systems like VoIP, IP Cameras, Video Conferencing System (VCS) and etc, you should go for PoE+ switch. It provides dynamic power allocation, optimized power distribution and supreme power-supply utilization. IEEE standards require that PoE+ utilizes a Cat5 cable only which lowers the chance of possible impedance and reduces power dissipation.

Conclusion

PoE switch and PoE+ switch rationalize both of the processes of powering and providing data to the devices, which make them become straightforward and reliable equipment. In a word, for home network, a simple and cost-effective PoE is adequate. For business network, the PoE+ can support a more complete range of network devices. For more reliable 24 port PoE switch and 48 port PoE switch, FS would be a good choice.
标签：

评论

发表评论

此博客中的热门博文

How to Connect Ethernet Switch, Router and Modem

In the computer networking world, the three most ubiquitous pieces of equipment are Ethernet switch, router and modem. These are applied everywhere from data center to network connections in your own home. However, despite the importance of these three pieces of equipment, some people are oblivious or confused to their internal functions and connection mode. So in this article, we will attempt to explain the difference between each piece of equipment and introduce the common way to connect Ethernet switch, router and modem. What Is the Difference Between Ethernet Switch, Router and Modem From a physical perspective, a modem, router and Ethernet switch look very similar. Nevertheless, there are key differences between them internally and functionally with relevant purposes on a network. Switch: Bridge Your Devices in a Network An Ethernet switch is commonly referred to as a multi-port network bridge that processes and routes data on a data link layer (layer 2) and sometimes
发表评论
阅读全文

24 Port Switch SFP Port vs RJ45 Port: How to Choose?

Gigabit switch that offers greater speed and compatibility continues to gain in popularity in the realm of networking world. In the present market, Gigabit switch generally has two kinds of ports: SFP port vs RJ45 port. Different ports are endowed with relevant sizes and specifications which prevent the incorrect type of connector from being plugged into them. So what are the differences between SFP port and RJ45 port of the Gigabit switch? And how to choose the proper one from them? In this article we will take 24 port switch as an example to explore the distinctions and provide some considerations when choosing SFP port vs RJ45 port. Comparisons Between 24 Port Switch SFP Port vs RJ45 Port 24 Port Switch with SFP Port Built-in SFP ports on 24 port switch enable optical or copper links by inserting the corresponding SFP module: fiber SFP or copper SFP. When SFP port is inserted in 1G copper SFP module, the Ethernet copper cables (Cat5e, Cat6 and Cat7) must be used for data t
发表评论
阅读全文

What Is the Difference: Twinax vs Twisted Pair

With the passage of time and the development of information era by leaps and bounds, the demand for more bandwidth and data transmission to satisfy the ever-increasing number of operating systems and applications is becoming a cumulatively common trend. As the media types of transmitting signals, the popularization of SFP cable and Ethernet cable/twisted pair cable have been the tendency towards data center interconnection applications and can be ascribed to the domination of Cat5e copper cabling and 1000BASE-T over the years. So in this article, we will concentrate on the brief introduction to the cables: twinax vs twisted pair and their corresponding application considerations. Twinax vs Twisted Pair: What Is SFP Twinax Cable? Twinax vs twisted pair: how to understand the concept? SFP cable, sometimes called as 10G SFP+ cable, SFP+ DAC twinax cable, is a kind of high speed cable with Small Form Factor Pluggable Plus on either end. SFP twinax cable which displaces two optical mod
发表评论
阅读全文