1Preparing for installationSafety recommendationsTo avoid any equipment damage or bodily injury caused by improper use, read the following safetyrecommendations before installation. Note that the recommendations do not cover every possiblehazardous condition.Safety symbolsWhen reading this document, note the following symbols:WARNING means an alert that calls attention to important information that if not understood orfollowed can result in personal injury.CAUTION means an alert that calls attention to important information that if not understood orfollowed can result in data loss, data corruption, or damage to hardware or software.General safety recommendations• Keep the chassis and installation tools away from walk areas.• Make sure the ground is dry and flat and anti-slip measures are in place.• Remove all the external cables (including power cords) before moving the chassis.Electricity safety• Locate the emergency power-off switch in the room before installation. Shut the power off atonce in case accident occurs.• Make sure the router has been reliably grounded.• Do not open or close the chassis cover when the router is powered on.• Use an uninterrupted power supply (UPS).• If there are two power inputs, disconnect the two power inputs to power off the router.• Do not work alone when the router has power.• Always verify that the power has been disconnected.Laser safetyWARNING!Do not stare into any fiber port when you connect an optical fiber. The laser light emitted from thefiber port might hurt your eyes.The H3C SR6616 routers are Class 1 laser devices.
