1 Product Introduction D-Link Smart Managed Switch User Manual1111CAUTION: The MiniGBIC ports should use UL listed OpticalTransceiver product, Rated Laser Class I. 3.3Vdc.CAUTION: The port 1 ~ port 24 are PoE ports. When user pressthe Mode button to PoE mode, only port 1 ~ port 24 will light up.CAUTION: This equipment can be connected only to PoEnetworks without routing to the outside plant.NOTE: Once user enter in loader mode, you can use DNA tool(standalone version 2.0.2.4 only (No support by ChromeDNA3.x.x.x)) to download the image or call D-Link TechnicalSupport for further help.Rear PanelFigure 1.16 – DGS-1210-28MP Rear PanelPower: Connect the supplied AC power cable to this port.DGS-1210-5248-Port 10/100/1000Mbps plus 4 Combo GE/SFP Slot Smart Managed Switch.Front PanelFigure 1.17 – DGS-1210-52 Front PanelThe front panel of the DGS-1210-52 switch consists out of the following:• Power LED : The Power LED lights up when the Switch is connected to a power source.• Port Link/Act/Speed LED (1-48): The Link/Act/Speed LED flashes, which indicates a network linkthrough the corresponding port. Blinking indicates that the Switch is either sending or receiving data tothe port. When a port has an amber light, this indicates that the port is running on 10M or 100M. Whenit has a green light it is running on 1000M.• Port Link/Act/Speed LED (49F, 50F, 51F, 52F, 49T, 50T, 51T, 52T): The Link/Act/Speed LED flashes,which indicates a network link through the corresponding port. Blinking indicates that the Switch iseither sending or receiving data to the port. When the port LED glows in amber, it indicates the port isrunning on 100M. When the port LED glows in green, it is running on 1000Mbps.• Reset: Press the Reset button for 1~5 seconds to reboot the device. Press the Reset button for 6~10seconds to reset the Switch back to the default settings and led will be solid light with amber for 2seconds. Or press the Reset button over 11 seconds to enter the loader mode after device reboot andthe led will be solid light with green for 2 seconds. If the device cannot reboot the Switch via image 1and image 2, the device will enter the loader mode automatically.NOTE: On the DGS-1210-52, the MiniGBIC ports are shared withnormal RJ-45 ports 49T, 50T, 51T and 52T. When the MiniGBIC