I tried releasing it from the outlet with a PoE power supply hub that supplies power from the LAN cable

PoE (Power over Ethernet) is a technology to supply power via Ethernet. It is only to install it away from the location of the outlet, even if it is difficult to supply power, if you can connect with a PoE-powered hub and a LAN cable, you will be able to supply power.

Technologies themselves have spread since around 2004 but have not had opportunities to use until now, but I bought the other dayNetwork camera "VB-M40"Is PoE compliant, and the power supply is not necessarily close to the characteristics of the camera, so we decided to introduce a switching hub capable of PoE power supply.

This time I purchased Buffalo's "BS-POE-2008MR".


The item of the order arrived.


I will open the box at once and prepare for setting.


The contents are like this, main body and accessories, introduction guide, cable is included.


Accessories include fixing devices and AC adapters. Even with PoE, power supply to the original hub is necessary, and the device connected from this hub with the LAN cable is OK even without an AC adapter.


Front of the main unit.


It looks a lot like a regular 8-port switching hub.


The rear side is only made by connecting the AC adapter, it is making it very divisible.


On the side, the heat exhaust port is open all the way.


The width is roughly 26 cm.


The depth is 16 cm.


The height is 4 cm. It is not that large as a switching hub.


First turn on the power supply ......


Just connect the LAN cable just like a normal switching hub.


Connect the LAN cable to the network camera. The power cable (green connection) has already been pulled out.


Up to now, a lot of cables including the LAN cable and the power cable from the network camera, as well as the microphone and the speaker were out, but now the power cable becomes unnecessary. Originally the AC adapter of VB - M40 is sold separately, so it is better to prepare a PoE power supply switching hub from the beginning.


VB - M40 cables are getting smaller, and handling has become more effective. These cameras are often installed in locations such as the corners of the ceiling where power is difficult to pick up, so PoE power supply is convenient.


PoE compatible switching hub BS-POE-2008MR price.com is the lowest priceAt the time of article writing, it is 37,012 yenwas.

Price .com - Buffalo BS-POE-2008MR Price comparison


Attention is required in terms of 10BASE-T / 100BASE-TX correspondence instead of gigabit hub (1000BASE-T etc.), but if you are using PoE compatible equipment it will help to reduce the power cable, so you can use the normal hub and Using PoE powered hub properly is enough ant operation.