Why Use 802.3at PoE Technology?

April 17, 2014 at 10:00 AM


802.3at is the latest of the IEEE's Power over Ethernet (PoE) standards. Although it was released in 2009, it is still very relevant today.


Why? It offers up to 25-50 Watts of DC power to attached devices via a single Ethernet cable.


With the advent of 802.3at, a completely new class of devices could be powered directly via an Ethernet network interface. This PoE standard can be used with pan, tilt, and zoom (PTZ) IP cameras that require more power than stationary IP cameras, as well as other devices including dual radio WiFi access points, video phones, and laptops.


PoE enabled networking devices such as PoE IP Cameras, PoE Wireless Access Points and PoE IP Phones have become main stream in many networks because of the convenience of easy installation and great cost savings by not having to run AC power outlets.

Commonly referred to as PoE+ or PoE plus, 802.3at also has embedded intelligence via a newly defined data link layer (layer 2) protocol. The Link Layer Discovery Protocol (LLDP) allows the power source equipment to discover devices on the network and communicate with them to enable dynamic allocation of power levels.


PoE’s greatest benefit is that by utilizing its technology, both data and power can be sent to an Ethernet device via standard Cat5e/6 cabling. This means you do not need to install a power outlet at the device location and you can use readily available, relatively low cost Ethernet cabling.

If you’re looking to incorporate 802.3at technology into your application, here are a few products we suggest (all 802.3at compliant):




10 of the Worst Cabling Nightmares

April 10, 2014 at 10:00 AM


At L-com, we pride ourselves on the professionalism and commitment to customer service. Our goal is to deliver the best connectivity solutions possible for the organizations we serve and support.


To that extent, we’re always dismayed when we hear of an organization compromising quality. But as discovered in recent Facebook updates, some organizations take the compromise way too far when it comes to their cabling infrastructure.


We decided to take a deeper look across the web for more examples and we were surprised and often shocked at what we found. Here’s our list of the worst cabling disasters we could find online. We hope you enjoy and hope this isn’t a facility you’ve experienced in your own work environment!



Flirting with disaster

         Source: http://idtechnology.wordpress.com/category/curso-cableado-estructurado/


Cabling done wrong

Source: http://www.justcabling.com/cabling_projects.html


Looks comfortable




















 Source: http://peterskastner.wordpress.com/2011/02/23/cisco-the-lion-king-fights-for-data-center-fabric-leadership/


Our favorite “worst wiring job ever”

Source: http://www.dotcom-monitor.com/blog/index.php/2010/08/server-cable-hell-15-of-the-worst-wiring-jobs-ever-2/


Do not touch any of these wires

Source: http://filipefreitas.net/blog/?p=78 via Flickr http://www.flickr.com/photos/avi_abrams/sets/72157600288765632/

Imagine seeing this at your next trade show

Source: http://sprott.physics.wisc.edu/pickover/pc/cablerc.html


Network cable management done wrong


Source: http://www.geeksaresexy.net/2007/07/31/network-cable-management-done-wrong/


Now where was that Ethernet cable really supposed to go again?


Source: https://www.kumari.net/gallery/index.php/Technology/Networking/PB110005


Think your home entertainment system gets messy with wires? 


Source: http://dcbureau.wordpress.com/2008/08/28/wires-wires-everywhere/




And our favorite: Worst Cable Mess Ever J


Source: http://royal.pingdom.com/2008/01/09/the-worst-cable-mess-ever/


Have an example we missed? We’d love to read about it via the comments below or please send us a message through Facebook or Twitter too!


Don’t Plan a WLAN Until You Read Our WiFi Antenna White Paper

April 3, 2014 at 10:00 AM


Why? Let me ask you this.


Do you know how to choose the correct antenna for a better wireless connection?


With all of the various antenna options out there, it can get confusing as to which antenna to use and how they work. After reading this white paper, you’ll have the information you need to get started on planning your network. 


Our white paper - Choosing the right WiFi antenna for your applicationcovers common wireless network application examples and details the basic types of WiFi antennas that are available today. From choosing an antenna for a campus, to planning for an office environment, we give you a rundown of what antenna is best for your application and how-to tips for proper network design.


Here are just a few highlights from this free white paper:


There are two main types of WiFi antennas, Omni directional and directional


Omni directional antennas provide a 360° donut shaped radiation pattern to provide the widest possible signal coverage in indoor and outdoor wireless applications. An analogy for the radiation pattern would be how an un-shaded incandescent light bulb illuminates a room. Types of omni directional antennas include "rubber duck" antennas often found on access points and routers, omni antennas found outdoors, and antenna arrays used on cellular towers. ... (read more)


Outdoor Omni Antenna

Rubber Duck Antenna

Omni Antenna Array

I want to add WiFi to my office building (inside)


To provide wireless coverage to an inside office space, use omni directional antennas that provide 360° wireless coverage. The style of antenna typically used is the ceiling mount omni directional antenna. The antenna gain pattern for the ... (read more)



I want to install WiFi in a campus environment (outside)


In this case you can use several directional antennas with an omni directional antenna at the central building to connect the buildings in the campus. This is called a point to multipoint network. As with any outdoor WiFi network, clear ... (read more)



to download this free white paper 


IP Ratings Guide

March 27, 2014 at 10:00 AM


One commonly asked question we receive from our customers is “What is the difference between IP67 and IP68?


Let’s first take a look at how these ratings work. Ingress Protection (IP) numbers are used to define a products resistance to moisture and fine particulates.


The first number after IP (shown in the left hand column below) denotes a products protection against solid objects like dust and sand.  This number can range from 0, meaning no protection against dust and sand, to 6, meaning 100% protection against dust and sand.  


The second number after IP denotes the part's protection against liquids.  It ranges from 0 to 8, from protection against direct liquid sprays to protection against long periods of immersion under pressure.  

Our IP67 Fiber Optic Cables, shown above, ensure protection from moisture and dust with an operating Temp: -40 to +85 Celsius.  Our IP68 Ruggedized Ethernet cables, shown on the right, offer complete moisture, dust, oil and UV protection for applications used in military, outdoor or industrial settings. 


Take a look below for further details on each of the IP categories. 



First number (Protection against solid objects)


Second number (Protection 
against liquids)



No protection


No protection


Protected against solid objects over 50mm 
(e.g. accidental touch
by hands)


Protected against vertically falling drops of water


Protected against solid objects over 12mm 
(e.g. fingers)


Protected against direct sprays up to 15o from the vertical


Protected against solid objects over 2.5mm 
(e.g. tools and wires)


Protected against direct sprays up to 60o from the vertical


Protected against solid objects over 1mm 
(e.g. tools, wires
and small wires)


Protected against sprays from all directions - limited ingress permitted


Protected against dust - limited ingress 
(no harmful deposit)


Protected against low pressure jets if water from all directions - limited ingress permitted


Totally protected 
against dust


Protected against strong jets of water e.g. for use on ship decks - limited ingress permitted




Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes




Protected against long periods of immersion under pressure


Don’t Miss Your Chance to See the Hottest Wireless Products

March 20, 2014 at 10:00 AM



Question: Where can you find over 7,500 technology engineers and buyers, over 350 top manufacturers, and a five-day conference with the most influential industry leaders (all of whom are eager to share their innovations and expertise)?


Answer: The International Wireless Communications Expo (IWCE) on March 26th and 27th. 


We believe that IWCE is not only a place to learn from and network with a wide range of industry professionals, but it also provides a chance to see the most innovative wireless technology. It’s an opportunity to discover new technology that could help you do your job more efficiently and effectively.


Also, did we mention that it's in Vegas?


How could you pass that up. We certainly won't.


Plus, the 2014 IWCE Conference will have a packed week filled with special events including panel discussions, workshops, and even courses on the "Foreign-Language track" for all you Spanish speakers out there.


We’re looking forward to exhibiting at IWCE since it’s the premiere wireless conference for engineers and installers. IWCE prides itself on being the authoritative annual event for communications technology in the working world. This year our team will showcase many new wireless products including our MIMO and multi-band antennas, which can be used in today’s 802.11ac applications. A few surprise products are also planned to be unveiled....so keep a lookout!


Some of the many products L-com will feature at IWCE include:

-Dual Polarized MIMO Antennas
-Coaxial and Data line Lightning Protectors
-NEMA Enclosures
-Coaxial RF Cable Assemblies and Connectors
-2.4 GHz and 5.8 GHz Radios and Antennas

Be sure to stop by our Booth #4141 at the Las Vegas Convention Center to meet our wireless experts and see L-com's latest wireless connectivity products.



Get your complimentary show pass here!


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