The PS4820GB-POE is a Gigabit Power-over-Ethernet (PoE) Injector/Midspan with integral 48 volt, 19-Watt power supply.
The unit uses Phantom-powering techniques to combine Data and DC power onto Gigabit Ethernet data pairs 4/5 and 7/8. The unit features four Gigabit rated transformers to minimize signal distortion. This is in contrast to competitive products that use only two transformers.
The PS4820GB-POE supports 10/100/1000BaseT data rates. It is compatible with Network Appliances equipment supporting the IEEE standard PoE pinout (Pins 4&5 (+) Pins 7&8 Power (-).