Passive POE injector for IP Camera,VoIP Phone,Netwrok AP device 12V - 48V

With the introduction of new Ethernet-enabled devices expanding geometrically, the need to power these devices from standard AC power outlets has become a limiting factor. IP telephones, wireless access points, IP cameras and device servers are examples of devices limited by the need to have an AC power outlet nearby to plug in a DC power adapter. At best, power supply installation and wiring adds labor and results in the mess of extra wiring; worst case, the lack of nearby AC power means devices cannot be installed where they are needed.

Specification:

Pinout: DC jack center positive, 2.1 mm pin. RJ45 pins 4,5 = positive, RJ45 pins 7,8 = negative.

• Passive POE does not comply with the IEEE 802.3af specification.
• To minimize cable losses, feed the highest allowed voltage, e.g. 18V. Keep in mind that ALIX input power is fairly constant over input voltage - when the input voltage drops, the current goes up. Power = voltage * current.
• To avoid ground loops, ground should be referenced on the receiving end only, that is use a 2 prong (non grounded) AC adapter.

This one is economic for small DIY installations

Features:
Passive POE (Power Over Ethernet) adapter, used pairs of 100Mps network cable
to transmit power to remote device.

It is compatible with equipment supporting the standard PoE pin out (Pins 4&5 Power/ Pins 7&8 Power-)

Package included :1pcxPoE Adapter