Reaching those difficult to reach places

If you are lucky enough to work in an office or surgery which is newer than 5 years old then this article will be of no use for you. For buildings which are older than this, you might find it useful to read on.

In the olden days (which is what my children refer to my childhood as!) commercial buildings were wired to power things, phone sockets for phones and CAT5 for computers (well actually, there were some predecessors to CAT5 - but we don’t need to go into that in this article).

One of the big benefits of using babblevoice (or one of its poorer cousins!), is the phone network is no longer needed. Which means expensive phone lines with their restrictions and dedicated wiring in your building go. When designing a building you now only have power and network.

But for those buildings which didn’t put enough network points in what are the options? This article has one option which may be useful for you. Ethernet over Power.

First point, don’t confuse this with Power over Ethernet. A subtle difference in the title but a major difference in the technology. Power over Ethernet is designed to deliver a small amount of power to things like phones or cameras over the network cable - removing the need for a second cable to the phone on your desk.

Ethernet over Power is about using the power cables already in your building to transmit data. For this article I tested the TL-PA8010P KIT - http://uk.tp-link.com/products/details/TL-PA8010P-KIT.html. I also looked at Solwise PL-500AV-POE - http://www.solwise.co.uk/net-powerline-pl-500av-poe.html.

The PL-500AV-POE really confuses things as it has both Power over Ethernet and Ethernet over power. This means you can use your power in your building to connect back to the server room and only need 1 cable to your phone to power it as well.

I purchased TL-PA8010P KIT, because it was cheaper. I also didn’t get a response from Solwise about some of the functionality (what is the maximum number of devices I can plug into 1 network. Solwise - if you still want to come back to me I will publish your answer).

TL-PA8010P has a data transmission rate of 1.2Gb. The target audience is home media so they are really starting to get the data rate up. This is ample to transmit Ultra High Definition Video. For our purposes this dwarfs our requirements. TP can have up to 254 nodes in one network and 1.2Gb data throughput. In a phone network we wouldn’t come anywhere close to that.

In my office, I plugged one into the network and the other in an office which was lacking a network port. The phone, along with a power supply for the phone was plugged in and the pair buttons where pressed. The phone powered up, connected and worked immediately. The only problem I found with this device is they are pretty wide. So although they have a 3 pin socket on the top to provide a socket for the one it takes up (useful for the adapter of whatever you are plugging in) the socket to the side of this device is no longer accessible - so you need 2 sockets not one.

The devices use AES encryption to ensure no eavesdropping in other parts of your building.

I have had it plugged in for around a week now, no call quality issues, no failures - it just works. For environments where paying to get it cabled at around £250 per point, compared to £50 for a starter pack it makes a lot of sense (and a lot easier). I wouldn’t run 200 phones of these things, but to reach those 20 locations which are going to be difficult or too costly to cable then these devices are a good solution.

The babblevoice team

By Nick Knight, Apr 13, 2016  

#Administrator  #User  #Technical