Unlike several similar 8-port switches on the market, the Intellinet 8-port model offers Gigabit connectivity on all ports, as well as 802.3at and 802.3af PoE support up to 30 Watts.

The first piece of information provided by the spec, that is relevant to PD circuit design, describes how the PSE can provide the power to the Ethernet cabling system (see Figure 1). The system on the ...

The Power Integrations design, which is presented in the company’s Design Idea DI-88, is a PoE interface and DC-DC switching circuit designed around the company’s monolithic DPA-Switch ICs. A simple, ...

In this design, the J1 RJ-45 connector input receives data from an Ethernet router/switch and directly routes the data to the output. The circuit injects 48 V into the spare pairs (pins 4, 5, 7 ...