Since the introduction of Power Over Ethernet (PoE) technology, PoE switch has become popular among wide users. However, newbies are usually confused with the multiple port configuration on gigabit PoE switch. Since there are already regular PoE Ethernet ports for powered devices (PDs),what are the function of other ports like console port, SFP/SFP+ port and combo port on gigabit PoE switch? This article will take 8 port PoE switch and 24 port PoE switch as example to illustrate multiple port for your reference.
The safety of property and people is important to any commercial and industrial business owner. They are investing in various security solutions such as IP CCTV cameras and NVR systems to achieve this security. IP CCTV cameras have been described and discussed many times over the years; however, Network Video Recorders (NVRs) are underrated for various reasons. They are used with IP cameras to increase the effectiveness of security installations. What makes them popular? How do I set up an NVR for an IP camera on the network? This article discusses everything you ever wanted to know about NVR camera systems.