PoE Ethernet power supply requires more module chip inductors to ensure

PoE injector, also known as midspan, PoE charger or PoE adapter, mainly connects non-PoE switch and PoE powered device (PD) through network cable (such as Cat5eCat6Cat6a, etc.) to work. This device is generally suitable for places where low-power terminal devices need to be installed but lack power sockets. This solution effectively achieves a great improvement in network flexibility at a low cost, so that equipment installation is no longer restricted by geography and existing network architecture.

The advantages of PoE power supply are mainly reflected in the following aspects:

Easy to install: Just connect the power supply to the PoE terminal device and switch respectively to provide power and data transmission support.

Easy to expand: The data signal output by the non-PoE switch can be injected with power signals through the network cable, thereby providing power and data transmission support for the powered device at the same time, bringing more convenience to the device connection.

Save money: The use of PoE power supply can retain the original network architecture on the basis of effective use of the original equipment, thereby greatly saving money.

PoE power supply type

Standard PoE power supply & non-standard PoE power supply

Standard PoE power supply refers to the power supply that complies with the PoE industry standard (such as IEEE802.3af, IEEE802.3at or the latest IEEE802.3bt standard). Under the PoE industry standard of 802.3af, 802.3at or 802.3bt, the PoE power supply equipment (PSE) and the powered device will automatically negotiate when connected, and the negotiation will succeed only when both devices meet the same standard mode. When the negotiation between the two devices succeeds, the power supply equipment will supply power to the powered device. Under this working mode of standard PoE technology, the safety of PoE devices can be effectively guaranteed. Generally, the power supply voltage of 802.3af, 802.3at or 802.3bt standards is 44-57V (DC).

Non-standard PoE power supply generally refers to the power supply that does not comply with any PoE industry standard (such as IEEE802.3af, IEEE802.3at or IEEE802.3bt standards). The voltage of non-standard PoE devices is generally 18-48V (DC) when running. If the voltage values of two connected devices do not match, it may cause permanent damage to the devices.

12V/24V/48V PoE power supply

PoE power supplies can be divided into three types according to the output voltage: 12V, 24V and 48V. When purchasing a PoE power supply, you need to first consider whether the voltage of the PoE device connected to it is consistent.