36Connect Ethernet cablesConnecting a copper Ethernet cableFollow these steps to connect the router to a network through a 10/100/1000Base-T port:Step1 Plug one end of an Ethernet twisted pair cable into the copper Ethernet port (RJ-45 port) to be connectedon the router and the other end of the cable into the Ethernet port of the peer device. The10/100/1000Base-T copper ports of the router support MDI/MDI-X auto-sensing. They are connectedto the network through category-5 or above twisted pairs that are equipped with RJ-45 connectors.Step2 After power on the router, check the status LED of the Ethernet ports. For more information about the LEDstatus, see “Appendix C LEDs.”NOTE:For more information about Ethernet twisted pair cables, see “Ethernet twisted pair cable.”Connecting a fiber Ethernet cableBefore connecting the router to the network, you must install a transceiver module to the router, and theninsert the fiber connector to the transceiver module. The SR6600 Router Series supports LC connectorsonly.WARNING!• To avoid injury to your eyes, do not stare at the optical interfaces and optical fiber connectors whenconnecting optical fibers.• Never bend or curve a fiber when connecting it. The bend radius must be not less than 10 cm (3.94 in).• Ensure the cleanness of the fiber ends.• Make sure that the fiber connector matches the transceiver module.Follow these steps to connect your router to the network through optical fibers:Step1 Remove the dust plug from a fiber port of the router.