Installation ManualH3C S7500 Series Ethernet Switches Chapter 4 Hardware Installation4-142) Remove the protective cap from the optical port on the switch, and connect oneend of the fiber to the port.3) Connect the other end of the fiber to the corresponding device.Caution:When an optical port is not connected with a fiber connector or its protective cap isopen, there might be invisible radiation emitted from the port. So do not stare into theoptical port directly.Cover the optical port with a protection cap if there is no connector plugged in.4.8 Cabling4.8.1 Cabling for Desk-MountingIf you mount the switch on a desktop, run all service cables on the cable managementbracket on the left side of the chassis, and AC or DC power cables on the rear ofchassis.4.8.2 Cabling for Cabinet-MountingIf you mount the switch in a standard 19-inch cabinet or N68 cabinet, bind all servicecables to the cable management bracket on the left side of the cabinet. Run the servicecables as you run the signal cables (on cabling racks or in raised floor) in the equipmentroom. Put all signal cables connectors at the bottom of the chassis, instead of outside ofthe chassis for fear of unexpected damage. From the left of the rear panel of the cabinet,run the power cables on cabling racks or in raised floor as near as possible according tothe positions of the PDF, lightning protection box, and terminal strips in the equipmentroom.4.9 Cable Binding4.9.1 Correct Use of LabelsCorrectly fill in labels and paste them to the right places on the cables before binding.4.9.2 Precautions for Cable Bindingz Bind the cables straight in the cabinet, without any twisting or bending. See Figure4-15
