Ethernet Wire Diagram - TL-SF1008D 8-port 10/100Mbps Fast Ethernet Switch provides 8 10/100Mbps Auto-Negotiation RJ45 ports. All ports support Auto MDI/MDIX function eliminating the need for crossover cables or. Ethernet splitter. The cables in most home networks contain four twisted pairs of wire. That’s eight wires in total. Cat 5e is a common example of this. 100BASE-T is an ethernet standard which handles network traffic at a nominal rate of 100mb/s. 100BASE-T requires only two twisted pairs.. Make sure this fits by entering your model number.; The Power LED is not lit : The Power LED should be lit when the power system is working normally. If the Power LED is not lit, please check as follows: Make sure the power cord is connected to the switch with power source properly..