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Antwort Will PoE 2 replace PoE? Weitere Antworten – Will PoE go through a switch

Will PoE 2 replace PoE?
PoE doesn't carry through additional switches/hubs, it will only be supplied to devices that are directly connected to a PoE switch (and only by request). If you have a PoE switch, and want to pass PoE to cliend devices, you should not use non-PoE switches in between.Here are some of the major applications for high-power PoE:

  • LED lighting and sensors.
  • PTZ cameras.
  • High-performance WAPs.
  • Thin client computers.
  • VoIP phones.
  • IP security cameras.
  • Facility monitoring controls.
  • Digital signage.

PoE or PoE+

PoE (802.3af) is the original PoE standard and offers 15.4W of power to the Ethernet port · PoE+ (802.3at) is the latest standard which almost doubles the available budget, providing 30W of power to the Ethernet port and futureproofing your network with the latest power over Ethernet standards.

Are PoE switches slower : Therefore, everyone is concerned that whether PoE switches will affect speed. The answer is no. The speed of your Internet will not be slowed down by an Ethernet connection, despite the fact that it is not wireless like a wifi connection.

What is the disadvantage of a PoE switch

One of the main cons of a PoE (Power over Ethernet) switch is the limited distance for power and data transmission. PoE switches typically have a maximum distance limitation for transmitting power and data over Ethernet cables.

Will a PoE switch hurt non-PoE devices : PoE and non-PoE devices can be mixed on the same switch at the same time. There is no problem at all. In addition, many PoE switches can automatically disable the PoE port of the signal for ports that do not need it, making them more power-efficient.

100 watts

PoE (802.3af):This is the original PoE standard and provides up to 15.4 watts of power per port. PoE+ (802.3at):This standard provides up to 30 watts of power per port. PoE++ (802.3bt):This is the latest and most powerful PoE standard and provides up to 100 watts of power per port.

What are the disadvantages of PoE

  • POE technology requires additional hardware, such as POE switches or injectors, which may increase implementation costs.
  • Energy loss can occur over longer distances, so POE technology may not be suitable for larger network deployments.

Will a PoE device work with PoE+

PoE+ switches are backwards compatible with PoE switches, which delivers more power. The transition from 802.3af to 802.3at is relatively simple. A PSE designer will have to spend more time engineering the change to 802.3bt, but Antaira offers compatible industrial switches.Can I Use a PoE Port for a Non-PoE device Likewise, the answer is yes. PoE switches have auto-sensing PoE ports. This means that the PoE port will detect if the connected device is a PoE device or not.The average lifespan of a PoE switch is 3-5 years.

A single PoE cable is limited to 100 meters, but PoE itself can power any device at any distance, provided enough power is generated at the source to operate the unit on the other end of the cable run.

Will PoE hurt non-PoE devices : PoE injectors and switches will not damage any equipment, even if the equipment is not designed for PoE applications. Before the PSE sends any power to a connected PD, the PSE initiates a handshake procedure that establishes how much power the connected device requires.

Can you mix PoE and non-PoE : Yes, PoE does not interfere with normal switch operation. PoE and non-PoE devices can be mixed on the same switch. In addition, many PoE switches can automatically disable the PoE part of the signal for ports that do not need/request/support it, making them more power-efficient.

What is the disadvantage of PoE switch

PoE drawbacks

  • Outages. A single PoE connection usually connects to multiple devices.
  • Power limits. Devices supported under the 2003 PoE standard are limited to 30 W.
  • Higher switch costs.
  • Distance limits.
  • Security.


PoE++ (802.3bt) provides up to 60 watts of power to each port in Type 3 and up to 100W on each PoE port in Type 4. This is significantly higher than the power provided by PoE (802.3af) and PoE+ (802.3at), which provide up to 15.4 watts and 30 watts of power, respectively.Power over Ethernet Comparison: PoE vs PoE+

The big difference between 802.3af (PoE) and 802.3at (PoE+) is the amount of power delivered over each standard. 802.3af (PoE) can deliver 15.4 watts over Cat5 cables. 802.3at (PoE+) can deliver up to 30 watts over Cat 5 cables with 25.5 watts available to devices.

Will PoE hurt non PoE devices : PoE injectors and switches will not damage any equipment, even if the equipment is not designed for PoE applications. Before the PSE sends any power to a connected PD, the PSE initiates a handshake procedure that establishes how much power the connected device requires.