SPECIFICATION 
• L2, Unmanaged,
• 16 100M PoE port,
• 1 1000M RJ45 uplink port,
• 1 1000M independent SFP uplink port;
• 802.3af/at self- adaptive,
• PoE power budget 135W;
• Four Working Mode:
• "Extend" Mode: Port 9-16,
• max. 250m long distance transmission;
• "Isolate" Mode: each 100M port as a single
    Vlan to isolate the port    communicaiton and prevent network storm;
• "Standard" Mode: default,
• normal working mode;
• "Priority" Mode: VIP port,
• port1-8, • QoS priority;
• Lightning Protection: 6KV per port;
• Metal casing;