PoE (Power-over-Ethernet) boards from Saelig allow remote device operation and control without a local power source. The TEK-PoE 2 DC-12W uses standard PoE switches, cables and RJ45 connectors to deliver regulated DC output at 5-, 9-, 12- or 24V, and passing a 10/100base-T Ethernet connection through to the output jack. PoE-2-RS232-12W is a PoE serial adapter and converter that provides Ethernet-to-serial data conversion and high efficiency local power from the Ethernet cable when sourced by 802.3af-compliant power sourcing equipment. It can beconnected to any device with a serial port connection, making it immediately web-enabled. Functioning as a single serial port server, it converts a serial port to an Ethernet port, removing the length limitations imposed by RS232 communication cables. Another board, the PoE-2-Input-12W is a digital monitor/DC/DC converter that provides remote Ethernet monitoring for up to 16 digital inputs with local power derived from a PoE cable. This networked device monitor can web-enable any 5V digital device. As a monitor it can report status, time, temperature, alarm and other information from anywhere, directly to a PC. Additionally, it can deliver regulated DC power for an additional non-POE device, locally converting up to 48V DC down to 3.3 to 12V DC for non-POE devices.
