First physical LAN cutter on the market, powered and driven by the Fixmebus, which works fine to instantly cut a gigabit Ethernet link. Use of gold contact 16 [A] relays. All high-speed data tracks of the Ethernet link are confined in intern copper layers of the electronic board because of EMC needs. Manual ON / OFF / FB 3-positions switchs. Microchip PIC18F46K22 microcontroller with a C language multi-task interruptable real-time firmware. The board is powered and driven via a Fixmebus link, which is a 24 [VDC] powered RS485 half-duplex cousin of Modbus RTU using Ethernet cables.