There are two common standards for standard PoE switches, IEEE 802.3af and IEEE 802.3at, both of which support two power supply methods.
A.Data and power supply run over 1236
B.Data runs over 1236 and power supply runs over 4578
In our last post, we talked about the Relationship Between The Number of Switch Ports And The Number Of Cameras (Part 1). And in this post, we are continue to this topic and provide a case to show you how to choose the switches for a project.
In this post, we would get to understand the relationship between the number of switch ports and the number of cameras.
Can two switches with fiber ports be directly connected through fiber ports? The answer is yes. The mainline of the fiber optic LAN directly connects to the switch, then to the router.
The main business of this chemical plant in Huizhou, China includes the development and manufacture of aluminum electrolytic containers, double-layer capacitors, etc. There are many types of hazardous chemicals in the production of chemical plants, and the production lines are widely distributed, and the production site environment is high-risk and complex.
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