User’s GuidePage 6 of 34Slide the toggle switch to the right “Link/ACT” side,the indicators marked with numbers areyellow when the 10/100M ports auto-negotiate connected, and the yellow indicators flashwhen there are data communications through the ports.4. 1000Mbps Link/ACT IndicatorsSlide the toggle switch to the right “Link/ACT” side,the indicators marked with numbers aregreen when the 1000Mbps ports auto-negotiate connected, and the green indicators willflash when there are data communications through the ports.5. PoE IndicatorsSlide the toggle switch to the right “POE” side, the indicators marked with numbers are yellowwhen the PoE function works. And the yellow indicators will flash when the PoE ports failed towork or the PDs are overloaded, please remove the PD, and reconnect after examination.1.3 Rear PanelPicture 1.3.1 Rear PanelPower Socket: Three-core power socket is adopted,please connect female head ofpower cord to the socket, and connect the AC power supply with male head.Chapter 2 Preparations before Instruction2.1 PrecautionsPlease read the following precautions carefully before operation, to avoid damaging thedevice or causing body injuries.1). Please remove the power socket before cleaning the switch. Don’ wipe the switch with wetcloth or wash the switch with liquid.2). Don’t stock the device in damp environment or near water, to avoid water or moisturepenetrating into the inner device.3). Don’t put the device on a unstable box or desk, the device will get damaged from falling.4). Please keep good ventilation indoor, and make sure the heat dissipation function of switchworks well.5). The switch only works normally in suitable voltage. Please check the working voltage first.6). Please don’t open the switch enclosure randomly, especially when the switch is poweredon, there is risk of electric shock.