Power Over Ethernet (POE) Network hub for the CCTV project

I got a new project, a CCTV project! Because the company wants to save money after call in few vendor, we decided that we can save more than 60% of the budget if we do it by ourself. We are going to use IP camera that need power from the Power Over Ethernet (POE).

Since we do not want to use the usual 3-pin plug AC power socket to power up the POE, we decided to use network switch that comes with POE.

After looking for few models, I found out that HP is the best in terms of performance. However, the price is way to expensive. We need at least 30 port since we are going to use 30 IP cameras. the next brand that I was looking for are TP-Link and D-Link, China and Taiwan made.

Out of these 3 brands, TP-Link is the cheapest of all. Since they are claiming they are the number one in the world for the network switch market segment, I give it a try for TP-Link.

As for the HP network switch, I was looking at this model: HP E2520-24G-PoE switch. From the website, the features looks amazing! While model number for D-Link: DGS-3120-24PC looks good also. However, for these two models, HP cost me more than RM5000 and D-Link more than RM4000. While as of TP-Link, TL-SG3424P, the cost is only RM840, not even RM1000! 

Comes to the network topology, we need to scatter up the 30 cameras from the server room span all to the plant wide that having 140 meter X 25 meter. Because of the huge area to cover, we decided to go for daisy chain and star topology, makes the TP-Link network switch not able to cope with this. Later we decided to buy 8 port Tp-Link PoE network switch so that we can maximize the wiring which is 100 meter maximum from the network switch to each camera.

Looking at the catalog, we go for TP-Link TL-SF1008P, 8 port PoE switch. However, only 4 ports are PoE enable port and this is unmanageable network switch. Come to think about it, 4 ports will go to the cameras, 2 port we will link the network switch to another network switch, to make it daisy chain/star topology.

As of now, I am waiting for the network swicth to arrive and I will update more about the CCTV using PoE soon.

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My eyes will be anywhere after this

-- microprocessor--

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